Re: Stus-List 3GM30F Oil Pressure warning

[Josh Muckley via CnC-List]

This list has been through the "don't put your hand over the intake"
discussion in the past.  There is a fear of losing skin and fingers and
palms.  I can say from experience that the suction really isn't extreme and
the engine dies quite quickly.  Maybe a valid concern on a bigger engine
but on our little engines it is a quick failsafe way.

Josh Muckley
S/V Sea Hawk
1989 C&C 37+
Solomons, MD
Yanmar 3HM35F
On Aug 11, 2015 10:55 PM, "Rick Brass via CnC-List" 
wrote:

> How many hours do you have on the engine? The sort of runaway you describe
> does happen rarely, but the piston rings have to be worn to near the end of
> their life (say 8000 to 1 hours) or you need to almost completely fill
> the block with oil to the point oil leaks out the dipstick tube.
>
>
>
> And never put a rag in the air intake. The suction of the diesel will just
> suck the rag into the intake manifold and valves (which is really no biggie
> since you will need to rebuild the head anyway when you rebuild the block
> after you get it to shut down from a runaway condition). Whatever you do,
> don’t put your hand over the air intake for pretty obvious reasons. It is
> best to use a flat metal object like a pie plate or a saucepan from the
> galley to cover the air intake. No airflow + no compression = engine shuts
> off.
>
>
>
> Rick Brass
>
>
>
> *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of 
> *Jean-Francois
> J Rivard via CnC-List
> *Sent:* Tuesday, August 11, 2015 11:50 AM
> *To:* cnc-list@cnc-list.com
> *Cc:* Jean-Francois J Rivard 
> *Subject:* Stus-List 3GM30F Oil Pressure warning
>
>
>
> Hi Rob,
>
> I was told by more than 1 mechanic to be very careful about never
> over-filling the oil in my 3GM30F..  In fact they recommended keeping it
> between the middle and about 2/3 full level on the stick.  The reason for
> that is to avoid a run-away engine condition..
>
> Apparently the excess oil can get splashed by the piston skirts and
> somehow make its way into the combustion chamber  / burn away without
> throttle control.  I was even advised to keep a rag handy near the engine
> to stuff it into the air intake and stop it should all else fail..
>
> I am not speaking form experience, but I was told it happens more often
> than one might think.
>
> Best regards,
>
> -Francois Rivard
> 1990 34+ "Take Five"
> Lake Lanier, GA
>
>   >> Mike:
>
>   >>Along the line(s) of what Rick was saying about oil levels, I'll add
>   >>this.   My Yanmar 2GMF manual says to put 2 litres of oil in the
> engine
>   >>after an oil and filter change.the 2 litres will bring the oil
> level
>   >>on the dipstick to the full mark only if I use a Yanmar oil filter,
>   >>which is quite small.
>
>   >>I use a NAPA 1064 Gold Seal oil filter which is larger than the Yanmar
>   >>is and obviously size and 'volume' of oil it can handle. Therefore, I
>   >>need more than 2 litres when I use the NAPA filter to get the dipstick
>   >>to read fullHow much more exactly?..I haven't measured it
>   >>exactly.I just add the extra oil beyond the 2 litres until the
>   >>dipstick reads full.more often than not since I am not exactly
>   >>measuring the extra oil beyond the 2 litres, the dipstick reads
> slightly
>   >>above the full mark.  After reading all these comments about oil
> levels
>   >>in the marine engines, I don't think I will fret about the oil level a
>   >>little above the full mark.
>
>   >>Just something else to think about.
>
>   >>Are you back at the club?
>
>   >>Rob Abbott
>   >>AZURA
>   >>C&C 32 -84
>   >>Halifax, N.S.
>
> ___
>
> Email address:
> CnC-List@cnc-list.com
> To change your list preferences, including unsubscribing -- go to the
> bottom of page at:
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>
>
>
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Re: Stus-List 3GM30F Oil Pressure warning

[Dan Sargeant via CnC-List]

Mike, I experienced the very same thing on Ocean Pearl last year. After
months of trying to install a mechanical oil pressure gauge (never could
get the threads to match) and checking with the old Yanmar gurus - who said
I had lots of oil pressure -I discovered a loose connector on the temp
sensor unit. Replaced that very old unit with new and she's been singing
beautifully ever since. I was seeing the panel lights incorrectly - it was
the temp alarm, not oil pressure. No false alarms now.
2 cents.
Dan
Ocean Pearl
C&C 32

On Mon, Aug 10, 2015 at 3:25 PM, Hoyt, Mike via CnC-List <
cnc-list@cnc-list.com> wrote:

> OK.
>
>
>
> So the service manual says to connect the oil pressure gauge to the pilot
> lamp unit for primary pressure and lubricating oil pipe connector for
> secondary pressure.
>
>
>
> Where is the pilot lamp unit?
>
>
>
> Mike
>
>
>
>
>
> *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of *
> svpegasu...@gmail.com via CnC-List
> *Sent:* Monday, August 10, 2015 2:48 PM
> *To:* cnc-list@cnc-list.com
> *Cc:* svpegasu...@gmail.com
> *Subject:* Re: Stus-List 3GM30F Oil Pressure warning
>
>
>
> Mike, summit racing is a great place to get gauges. Prices are good and
> delivery is fast.  The connection on the engine I believe is std 1/8th pipe
> thread. At least that was true on my 3qm30.
>
> The list is on the right track for your problem. Good luck.
>
> Doug Mountjoy
>
> svPegasus
>
> LF38
>
> just west of Ballard, WA.
>
>
>
>
>
> -- Original message------
>
> *From: *Hoyt, Mike via CnC-List
>
> *Date: *Mon, Aug 10, 2015 10:10
>
> *To: *cnc-list@cnc-list.com;
>
> *Cc: *Hoyt, Mike;
>
> *Subject:*Re: Stus-List 3GM30F Oil Pressure warning
>
>
>
> So likely the best place to start is to change the oil and filter first
> and then check oil pressure.
>
>
>
> On phone to yanmar dealer to find out where to get a manual pressure guage
> and where I attach it to engine to test …
>
>
>
> Engine was not putting off excessive heat that I could notice.  Did not
> get a chance to check coolant level but can top that up also.  I believe
> that is a different light on the panel though. We have the B type panel and
> Oil Pressure lamp is second from right while water temp warning lamp is
> third from right.  The water temp lamp was not illuminated
>
>
>
>
>
>
>
> *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com]*On Behalf Of *S
> Thomas via CnC-List
> *Sent:* Monday, August 10, 2015 2:01 PM
> *To:* cnc-list@cnc-list.com <%20cnc-l...@cnc-list.com>
> *Cc:* S Thomas
> *Subject:* Re: Stus-List 3GM30F Oil Pressure warning
>
>
>
> Also not expensive to get a mechanical oil pressure gauge and hook it up,
> even if you only want to do it temporarily. Actually just about any
> mechanical pressure gauge will work for test purposes, including air
> pressure gauges, just get one with an appropriate pressure range.
>
>
>
> Steve Thomas
>
> C&C27 MKIII
>
> Port Stanley, ON
>
> - Original Message -
>
> *From:*Martin DeYoung via CnC-List 
>
> *To:*cnc-list@cnc-list.com
>
> *Cc:*Martin DeYoung 
>
> *Sent:* Monday, August 10, 2015 12:24
>
> *Subject:* Re: Stus-List 3GM30F Oil Pressure warning
>
>
>
> Was there any noise from the engine that sounded like it was short of lube
> oil pressure?
>
>
>
> It is an easy and low cost test to buy a new oil pressure sending unit.
> Install it and test again with the engine at normal operating temp.
>
>
>
> If you still get the warning it is likely the lube oil pump.
>
>
>
> Martin
>
> Calypso
>
> 1971 C&C 43
>
> Seattle
> --
>
> *From:* CnC-List [cnc-list-boun...@cnc-list.com] on behalf of Hoyt, Mike
> via CnC-List [cnc-list@cnc-list.com]
> *Sent:* Monday, August 10, 2015 9:17 AM
> *To:* cnc-list@cnc-list.com
> *Cc:* Hoyt, Mike
> *Subject:* Stus-List 3GM30F Oil Pressure warning
>
> Oil changed in May. Used 15W 40
>
> Oil level checked July 22
>
> 300 mile delivery to Cape Breton (Dundee then Baddeck) July 23 – Aug 2
>
>
>
> Yesterday after running engine at 2800 RPM for approx. 5.5 hrs a “clicking
> sound” was heard in cockpit.  Thought at first was from Ram mic  but was
> still there once disconnected.  Determined was coming from alarm speaker on
> Yanmar panel.  Tapped panel and then Oil pressure light illuminated and
> alarm sounded.  Shut down engine and sailed to dock (without crashing)
>
>
>
> At dock started engine and at idle no alarm or light.  Revved up to 3000
> RPM and the light

Re: Stus-List 3GM30F Oil Pressure warning

[Rick Brass via CnC-List]

How many hours do you have on the engine? The sort of runaway you describe
does happen rarely, but the piston rings have to be worn to near the end of
their life (say 8000 to 1 hours) or you need to almost completely fill
the block with oil to the point oil leaks out the dipstick tube.

 

And never put a rag in the air intake. The suction of the diesel will just
suck the rag into the intake manifold and valves (which is really no biggie
since you will need to rebuild the head anyway when you rebuild the block
after you get it to shut down from a runaway condition). Whatever you do,
don't put your hand over the air intake for pretty obvious reasons. It is
best to use a flat metal object like a pie plate or a saucepan from the
galley to cover the air intake. No airflow + no compression = engine shuts
off.

 

Rick Brass

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of
Jean-Francois J Rivard via CnC-List
Sent: Tuesday, August 11, 2015 11:50 AM
To: cnc-list@cnc-list.com
Cc: Jean-Francois J Rivard 
Subject: Stus-List 3GM30F Oil Pressure warning

 

Hi Rob, 

I was told by more than 1 mechanic to be very careful about never
over-filling the oil in my 3GM30F..  In fact they recommended keeping it
between the middle and about 2/3 full level on the stick.  The reason for
that is to avoid a run-away engine condition..  

Apparently the excess oil can get splashed by the piston skirts and somehow
make its way into the combustion chamber  / burn away without throttle
control.  I was even advised to keep a rag handy near the engine to stuff it
into the air intake and stop it should all else fail.. 

I am not speaking form experience, but I was told it happens more often than
one might think.  

Best regards, 

-Francois Rivard
1990 34+ "Take Five" 
Lake Lanier, GA

  >> Mike:

  >>Along the line(s) of what Rick was saying about oil levels, I'll add 
  >>this.   My Yanmar 2GMF manual says to put 2 litres of oil in the engine 
  >>after an oil and filter change.the 2 litres will bring the oil level

  >>on the dipstick to the full mark only if I use a Yanmar oil filter, 
  >>which is quite small.

  >>I use a NAPA 1064 Gold Seal oil filter which is larger than the Yanmar 
  >>is and obviously size and 'volume' of oil it can handle. Therefore, I 
  >>need more than 2 litres when I use the NAPA filter to get the dipstick 
  >>to read fullHow much more exactly?..I haven't measured it 
  >>exactly.I just add the extra oil beyond the 2 litres until the 
  >>dipstick reads full.more often than not since I am not exactly 
  >>measuring the extra oil beyond the 2 litres, the dipstick reads slightly

  >>above the full mark.  After reading all these comments about oil levels 
  >>in the marine engines, I don't think I will fret about the oil level a 
  >>little above the full mark.

  >>Just something else to think about.

  >>Are you back at the club?

  >>Rob Abbott
  >>AZURA
  >>C&C 32 -84
  >>Halifax, N.S.

___

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Re: Stus-List 3GM30F Oil Pressure warning

[Martin DeYoung via CnC-List]

Diesel engines can runaway using lube oil as fuel but it is more likely on 
engines with turbo chargers.  The lube oil can leak through the turbo's bearing 
seals.  Back when I was completing my merchant marine training, the engineering 
instructor showed a video of a 6-71 running away to destruction.



If you are ever faced with a diesel that will not shut down, the recommended 
response is to stave it for air by blocking the intake.  Never use your hand.  
Less combustible materials that are handy in most boats will work.  In a pinch 
use your wife's foul weather gear.



It a great idea not to over fill the crankcase both for the runaway issue but 
also to reduce lube oil leakage, especially on older engines.  For Calypso's 
Perkins I noticed and increase in oil leaks when I switched to a higher 
detergent oil and had a full crankcase.  The leakage was less as the level 
dropped then went back to normal when I went back to Delo 100, a lower 
detergent oil.



Martin

Calypso

1971 C&C 43

Seattle


From: CnC-List [cnc-list-boun...@cnc-list.com] on behalf of Jean-Francois J 
Rivard via CnC-List [cnc-list@cnc-list.com]
Sent: Tuesday, August 11, 2015 8:50 AM
To: cnc-list@cnc-list.com
Cc: Jean-Francois J Rivard
Subject: Stus-List 3GM30F Oil Pressure warning

Hi Rob,

I was told by more than 1 mechanic to be very careful about never over-filling 
the oil in my 3GM30F..  In fact they recommended keeping it between the middle 
and about 2/3 full level on the stick.  The reason for that is to avoid a 
run-away engine condition..

Apparently the excess oil can get splashed by the piston skirts and somehow 
make its way into the combustion chamber  / burn away without throttle control. 
 I was even advised to keep a rag handy near the engine to stuff it into the 
air intake and stop it should all else fail..

I am not speaking form experience, but I was told it happens more often than 
one might think.

Best regards,

-Francois Rivard
1990 34+ "Take Five"
Lake Lanier, GA

  >> Mike:

  >>Along the line(s) of what Rick was saying about oil levels, I'll add
  >>this.   My Yanmar 2GMF manual says to put 2 litres of oil in the engine
  >>after an oil and filter change.the 2 litres will bring the oil level
  >>on the dipstick to the full mark only if I use a Yanmar oil filter,
  >>which is quite small.

  >>I use a NAPA 1064 Gold Seal oil filter which is larger than the Yanmar
  >>is and obviously size and 'volume' of oil it can handle. Therefore, I
  >>need more than 2 litres when I use the NAPA filter to get the dipstick
  >>to read fullHow much more exactly?..I haven't measured it
  >>exactly.I just add the extra oil beyond the 2 litres until the
  >>dipstick reads full.more often than not since I am not exactly
  >>measuring the extra oil beyond the 2 litres, the dipstick reads slightly
  >>above the full mark.  After reading all these comments about oil levels
  >>in the marine engines, I don't think I will fret about the oil level a
  >>little above the full mark.

  >>Just something else to think about.

  >>Are you back at the club?

  >>Rob Abbott
  >>AZURA
  >>C&C 32 -84
  >>Halifax, N.S.

___

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Re: Stus-List 3GM30F Oil Pressure warning

[Rick Brass via CnC-List]

I hate to sound like the Grinch, and I just know that I am going to, but…

 

I don’t know what engine you have (presume it is a Yanmar), and I know that 
most of us ignore the proper procedure from time to time, but I can virtually 
guarantee that your owner’s manual calls for you to check the oil level before 
you start the engine each time. I ignore proper procedure myself; my typical 
practice is to not check if I will be motoring for 15 or 20 minutes but to 
always check before and after any periods when I run the engine for an hour or 
more. And I check the engine oil and coolant on OPB’s I am delivering and on 
charters every morning before the client gets up.

 

And “the middle of the safe zone” is really a low oil situation. Your dipstick 
is most likely in the back end of the oil pan and the engine is installed at a 
10 to 15 degree slant. “Middle of the safe range” might be as low as a quart of 
oil. When I fill my Universal with the required 3 ½ quarts of oil during an oil 
change, the oil level is above the top mark on the dipstick by a significant 
margin. Think of the marks as: Top – OK, full; Bottom – shut down the engine; 
and In Between – add oil.

 

The possibility of a lower than optimal oil level, combined with the long run 
at high RPMs and an older engine would seem to make the earlier suggestion that 
the oil was not circulating back to the oil pan sufficiently to keep the oil 
pressure above the alarm level a fairly plausible explanation of the behavior 
you described. I suspect the behavior you report for the alarm and light is 
another manifestation of the wiring problems typical of Yanmar panels.

 

You report 40 or so hours of engine use in the last 20 days. If use has been 
like this since May, you are due for an oil change about now anyway (I can’t 
recall if a Yanmar is every 50 hours or every 100). I’d change the oil and 
filter, being sure to fully top off the oil, and look at the wiring harness to 
identify the corrosion or loose connection causing the erratic operation of the 
alarm. Then see if the situation reappears in the future

 

Rick Brass

Washington, NC

Formerly Yanmar and Cummins certified technician and trainer for a forklift 
manufacturer

 

 

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Hoyt, Mike 
via CnC-List
Sent: Monday, August 10, 2015 3:29 PM
To: cnc-list@cnc-list.com
Cc: Hoyt, Mike 
Subject: Re: Stus-List 3GM30F Oil Pressure warning

 

Rich

 

Me too!

 

I checked the level on the dipstick immediately after stopping engine.  Was 
middle of “safe” zone.  Plan to change oil and filter on the weekend, remove 
panel, check wiring and check oil pressure.  Boat had done a motor sail from 
Halifax to St Peters July 23-24 (25 hours motor) , St Peters to Dundee July 25 
(mostly sail), Dundee to Baddeck Aug 2 (5.5 hrs mostly motor).  Every day last 
week motor on for 20-30 minutes going to race and 10 coming back.  Then the 
next day 5.5 hrs Baddeck to Dundee (motor) .  I cannot call this a period of 
little use. 

 

There was another boat named Indigo in Baddeck last week BTW

 

Mike

Persistence

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Knowles Rich 
via CnC-List
Sent: Monday, August 10, 2015 4:24 PM
To: cnc-list Cnc-List
Cc: Knowles Rich
Subject: Re: Stus-List 3GM30F Oil Pressure warning

 

Mike:

 

Did you check the oil level after the alarm sounded? It could be low after a 
period of little use followed by motoring for a few hours. At higher RPM’s, the 
oil might fall below the pickup as more oil is pumped to the head than returns 
to the pan. I hope it is simple…..

 

Rich Knowles

Nanaimo, BC
INDIGO LF38
Boatless!




 

On Aug 10, 2015, at 09:17, Hoyt, Mike via CnC-List mailto:cnc-list@cnc-list.com> > wrote:

 

Oil changed in May. Used 15W 40

Oil level checked July 22

300 mile delivery to Cape Breton (Dundee then Baddeck) July 23 – Aug 2

 

Yesterday after running engine at 2800 RPM for approx. 5.5 hrs a “clicking 
sound” was heard in cockpit.  Thought at first was from Ram mic  but was still 
there once disconnected.  Determined was coming from alarm speaker on Yanmar 
panel.  Tapped panel and then Oil pressure light illuminated and alarm sounded. 
 Shut down engine and sailed to dock (without crashing)

 

At dock started engine and at idle no alarm or light.  Revved up to 3000 RPM 
and the light started flickering and a sputtering sound from the speaker (the 
clicking sound we heard earlier) which was followed by full illumination of Oil 
pressure light and full alarm siren.  Stoped engine and waited.

 

A few minutes later retarted engine and had no alarm at idle, followed by 
sputtering and then full alarm at high rpms. Reduced RPMs to idle and alarm 
stopped and light turned off.

 

Any thoughts? 

 

Boat is currently 3.5 hrs away by car so any parts will have to be taken with 
me in advance

___

Email address:
 <m

Re: Stus-List 3GM30F Oil Pressure warning

[svpegasus38]

Crom what I can ascertain is you have 2 filters, a large(primary)and a 
smaller one (secondary). The secondary oil press. is the pressure for this 
filter. The engine bleeds off some oil (5-10%) and sends it thru this filter 
and back to the oil sump.The critical pressure is the primary. This is 
regulated by the oil pressure relief valve (opens around 135psi) and by the 
clearances in the engine. As the engine wears the oil press will drop. Before 
changing your oil I would install an oil press guage 0 to 100psi should be 
enough. See what your pressures are at, cold idle, warm idle, and cruise rpm. 
Change the oil and filters then check again. This will tell you if the oil is 
getting diluted. Although old oil will have a lower press than new, but not 
more than 5-10psi. Feel free to contact me off list if you want. 
Doug MountjoysvPegasusLF38 just west of Ballard, WA.




-- Original message--From: Hoyt, Mike via CnC-List Date: Mon, Aug 10, 
2015 13:50To: cnc-list@cnc-list.com;Cc: Hoyt, Mike;Subject:Re: Stus-List 3GM30F 
Oil Pressure warning
ThanksPlease explain difference between primary and secondary 
pressure.MikeFrom: CnC-List 
[cnc-list-boun...@cnc-list.com] on behalf of svpegasu...@gmail.com via CnC-List 
[cnc-list@cnc-list.com]Sent: August 10, 2015 5:48 PMTo: 
cnc-list@cnc-list.comCc: svpegasus38@gmail.comSubject: Re: Stus-List 3GM30F Oil 
Pressure warningMike, for your situation start with the secondary pressure. Not 
having a manual in front of me. My guess this will give you pressure after the 
filter. You should be able to detect a pressure drop across all rpm ranges. For 
reference my 3qm30 pressure is 75 at idle after start. 65 at 2100 engine warm. 
And 25 at ldle engine warm. Hope this helps.Doug MountjoysvPegasusLF38just west 
of Ballard, WA.___Email 
address:CnC-List@cnc-list.comTo change your list preferences, including 
unsubscribing -- go to the bottom of page 
at:http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com

___

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Re: Stus-List 3GM30F Oil Pressure warning

[Bill via CnC-List]

Mike,
 
Here's an idea for a simple check of the circuitjust  remove the wire 
from the end of the oil pressure sending switch on the engine  and connect it 
to a good ground. Turn on ignition, but don't start engine. The  low 
pressure light should light, and alarm should sound. 
 
If not, then you likely have a wiring problem. If you leave  the lead 
attached to ground and "wiggle" wires, you might find the problem area  easily.
 
Bill
 
MYSTY
Landfall 39
 
 
In a message dated 8/10/2015 12:32:35 P.M. Eastern Daylight Time,  
cnc-list@cnc-list.com writes:

 
Thanks  Martin 
The  engine sounded normal.  When I shut it down and checked the oil level 
it  was mid range in acceptable area on dip stick.  The engine compartment  
did not seem hot.  There was no sign of oil or coolant leakage.  Oil  level 
approx the same as when checked two weeks ago 
One  note that may be relevant is that the warning light and buzzer 
occasionally  does not come on when key is ON and engine Stopped.  Possible 
loose  
connection because a small jiggle of starter key area and it works  properly 
Mike 
 
 
From: CnC-List  [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Martin 
DeYoung via  CnC-List
Sent: Monday, August 10, 2015 1:24 PM
To:  cnc-list@cnc-list.com
Cc: Martin DeYoung
Subject: Re:  Stus-List 3GM30F Oil Pressure warning

 
Was there any  noise from the engine that sounded like it was short of lube 
oil  pressure? 
It is an easy  and low cost test to buy a new oil pressure sending unit.  
Install  it and test again with the engine at normal operating  temp. 
If you still  get the warning it is likely the lube oil pump. 
Martin 
Calypso 
1971 C&C  43 
Seattle 
 
  

 
 
From:  CnC-List [cnc-list-boun...@cnc-list.com] on behalf of Hoyt, Mike via 
CnC-List  [cnc-list@cnc-list.com]
Sent: Monday, August 10, 2015 9:17  AM
To: _cnc-list@cnc-list.com_ (mailto:cnc-list@cnc-list.com) 
Cc:  Hoyt, Mike
Subject: Stus-List 3GM30F Oil Pressure  warning
 
 
Oil  changed in May. Used 15W 40 
Oil  level checked July 22 
300  mile delivery to Cape Breton (Dundee then Baddeck) July 23 – Aug 2 
Yesterday  after running engine at 2800 RPM for approx. 5.5 hrs a “clicking 
sound” was  heard in cockpit.  Thought at first was from Ram mic  but was 
still  there once disconnected.  Determined was coming from alarm speaker on  
Yanmar panel.  Tapped panel and then Oil pressure light illuminated and  
alarm sounded.  Shut down engine and sailed to dock (without  crashing) 
At  dock started engine and at idle no alarm or light.  Revved up to 3000 
RPM  and the light started flickering and a sputtering sound from the speaker 
(the  clicking sound we heard earlier) which was followed by full 
illumination of  Oil pressure light and full alarm siren.  Stoped engine and  
waited. 
A  few minutes later retarted engine and had no alarm at idle, followed by  
sputtering and then full alarm at high rpms. Reduced RPMs to idle and alarm 
 stopped and light turned off. 
Any  thoughts?   
Boat  is currently 3.5 hrs away by car so any parts will have to be taken 
with me in  advance






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Re: Stus-List 3GM30F Oil Pressure warning

[Phil Rackus via CnC-List]

The light doesn't come in when the engine is cold(?).  Has to be cooling 
related.   And yes, that can result in a low pressure warning before a temp 
warning.   Check your impeller.

Sent from my iPhone

> On Aug 10, 2015, at 2:27 PM, cnc-list-requ...@cnc-list.com wrote:
> 
> Re: Stus-List 3GM30F Oil Pressure warning

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Re: Stus-List 3GM30F Oil Pressure warning

[Hoyt, Mike via CnC-List]

Thanks

Please explain difference between primary and secondary pressure.

Mike

From: CnC-List [cnc-list-boun...@cnc-list.com] on behalf of 
svpegasu...@gmail.com via CnC-List [cnc-list@cnc-list.com]
Sent: August 10, 2015 5:48 PM
To: cnc-list@cnc-list.com
Cc: svpegasu...@gmail.com
Subject: Re: Stus-List 3GM30F Oil Pressure warning

Mike, for your situation start with the secondary pressure. Not having a manual 
in front of me. My guess this will give you pressure after the filter. You 
should be able to detect a pressure drop across all rpm ranges. For reference 
my 3qm30 pressure is 75 at idle after start. 65 at 2100 engine warm. And 25 at 
ldle engine warm. Hope this helps.


Doug Mountjoy

svPegasus

LF38

just west of Ballard, WA.



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Re: Stus-List 3GM30F Oil Pressure warning

[svpegasus38]

Mike, for your situation start with the secondary pressure. Not having a 
manual in front of me. My guess this will give you pressure after the filter. 
You should be able to detect a pressure drop across all rpm ranges. For 
reference my 3qm30 pressure is 75 at idle after start. 65 at 2100 engine warm. 
And 25 at ldle engine warm. Hope this helps. 
Doug MountjoysvPegasusLF38 just west of Ballard, WA.





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Re: Stus-List 3GM30F Oil Pressure warning

[Hoyt, Mike via CnC-List]

Rich

Me too!

I checked the level on the dipstick immediately after stopping engine.  Was 
middle of “safe” zone.  Plan to change oil and filter on the weekend, remove 
panel, check wiring and check oil pressure.  Boat had done a motor sail from 
Halifax to St Peters July 23-24 (25 hours motor) , St Peters to Dundee July 25 
(mostly sail), Dundee to Baddeck Aug 2 (5.5 hrs mostly motor).  Every day last 
week motor on for 20-30 minutes going to race and 10 coming back.  Then the 
next day 5.5 hrs Baddeck to Dundee (motor) .  I cannot call this a period of 
little use.

There was another boat named Indigo in Baddeck last week BTW

Mike
Persistence

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Knowles Rich 
via CnC-List
Sent: Monday, August 10, 2015 4:24 PM
To: cnc-list Cnc-List
Cc: Knowles Rich
Subject: Re: Stus-List 3GM30F Oil Pressure warning

Mike:

Did you check the oil level after the alarm sounded? It could be low after a 
period of little use followed by motoring for a few hours. At higher RPM’s, the 
oil might fall below the pickup as more oil is pumped to the head than returns 
to the pan. I hope it is simple…..

Rich Knowles
Nanaimo, BC
INDIGO LF38
Boatless!




On Aug 10, 2015, at 09:17, Hoyt, Mike via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:

Oil changed in May. Used 15W 40
Oil level checked July 22
300 mile delivery to Cape Breton (Dundee then Baddeck) July 23 – Aug 2

Yesterday after running engine at 2800 RPM for approx. 5.5 hrs a “clicking 
sound” was heard in cockpit.  Thought at first was from Ram mic  but was still 
there once disconnected.  Determined was coming from alarm speaker on Yanmar 
panel.  Tapped panel and then Oil pressure light illuminated and alarm sounded. 
 Shut down engine and sailed to dock (without crashing)

At dock started engine and at idle no alarm or light.  Revved up to 3000 RPM 
and the light started flickering and a sputtering sound from the speaker (the 
clicking sound we heard earlier) which was followed by full illumination of Oil 
pressure light and full alarm siren.  Stoped engine and waited.

A few minutes later retarted engine and had no alarm at idle, followed by 
sputtering and then full alarm at high rpms. Reduced RPMs to idle and alarm 
stopped and light turned off.

Any thoughts?

Boat is currently 3.5 hrs away by car so any parts will have to be taken with 
me in advance
___

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Rich Knowles
Nanaimo, BC
INDIGO LF38
Boatless!




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Re: Stus-List 3GM30F Oil Pressure warning

[Knowles Rich via CnC-List]

Mike:

Did you check the oil level after the alarm sounded? It could be low after a 
period of little use followed by motoring for a few hours. At higher RPM’s, the 
oil might fall below the pickup as more oil is pumped to the head than returns 
to the pan. I hope it is simple…..

Rich Knowles
Nanaimo, BC
INDIGO LF38
Boatless!





On Aug 10, 2015, at 09:17, Hoyt, Mike via CnC-List mailto:cnc-list@cnc-list.com>> wrote:

Oil changed in May. Used 15W 40
Oil level checked July 22
300 mile delivery to Cape Breton (Dundee then Baddeck) July 23 – Aug 2
 
Yesterday after running engine at 2800 RPM for approx. 5.5 hrs a “clicking 
sound” was heard in cockpit.  Thought at first was from Ram mic  but was still 
there once disconnected.  Determined was coming from alarm speaker on Yanmar 
panel.  Tapped panel and then Oil pressure light illuminated and alarm sounded. 
 Shut down engine and sailed to dock (without crashing)
 
At dock started engine and at idle no alarm or light.  Revved up to 3000 RPM 
and the light started flickering and a sputtering sound from the speaker (the 
clicking sound we heard earlier) which was followed by full illumination of Oil 
pressure light and full alarm siren.  Stoped engine and waited.
 
A few minutes later retarted engine and had no alarm at idle, followed by 
sputtering and then full alarm at high rpms. Reduced RPMs to idle and alarm 
stopped and light turned off.
 
Any thoughts? 
 
Boat is currently 3.5 hrs away by car so any parts will have to be taken with 
me in advance
___

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Rich Knowles
Nanaimo, BC
INDIGO LF38
Boatless!





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Re: Stus-List 3GM30F Oil Pressure warning

[Yves Gagnon via CnC-List]

Good article on oïl pressure: 
http://www.international-auto.com/fiat-lancia-tips-on-reading-gauges/tips-on-reading-gauges-oil-pressure-gauges.cfm

Yves
Foxy, c&c 33-1

Envoyé de mon iPhone

> Le 2015-08-10 à 14:25, Hoyt, Mike via CnC-List  a 
> écrit :
> 
> OK.
>  
> So the service manual says to connect the oil pressure gauge to the pilot 
> lamp unit for primary pressure and lubricating oil pipe connector for 
> secondary pressure. 
>  
> Where is the pilot lamp unit? 
>  
> Mike
>  
>  
> From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of 
> svpegasu...@gmail.com via CnC-List
> Sent: Monday, August 10, 2015 2:48 PM
> To: cnc-list@cnc-list.com
> Cc: svpegasu...@gmail.com
> Subject: Re: Stus-List 3GM30F Oil Pressure warning
>  
> Mike, summit racing is a great place to get gauges. Prices are good and 
> delivery is fast.  The connection on the engine I believe is std 1/8th pipe 
> thread. At least that was true on my 3qm30. 
> The list is on the right track for your problem. Good luck. 
> Doug Mountjoy
> svPegasus
> LF38
> just west of Ballard, WA.
>  
>  
> -- Original message--
> From: Hoyt, Mike via CnC-List
> Date: Mon, Aug 10, 2015 10:10
> To: cnc-list@cnc-list.com;
> Cc: Hoyt, Mike;
> Subject:Re: Stus-List 3GM30F Oil Pressure warning
>  
> So likely the best place to start is to change the oil and filter first and 
> then check oil pressure.
>  
> On phone to yanmar dealer to find out where to get a manual pressure guage 
> and where I attach it to engine to test …
>  
> Engine was not putting off excessive heat that I could notice.  Did not get a 
> chance to check coolant level but can top that up also.  I believe that is a 
> different light on the panel though. We have the B type panel and Oil 
> Pressure lamp is second from right while water temp warning lamp is third 
> from right.  The water temp lamp was not illuminated
>  
>  
>  
> From: CnC-List [mailto:cnc-list-boun...@cnc-list.com]On Behalf Of S Thomas 
> via CnC-List
> Sent: Monday, August 10, 2015 2:01 PM
> To: cnc-list@cnc-list.com
> Cc: S Thomas
> Subject: Re: Stus-List 3GM30F Oil Pressure warning
>  
> Also not expensive to get a mechanical oil pressure gauge and hook it up, 
> even if you only want to do it temporarily. Actually just about any 
> mechanical pressure gauge will work for test purposes, including air pressure 
> gauges, just get one with an appropriate pressure range.
>  
> Steve Thomas
> C&C27 MKIII
> Port Stanley, ON
> - Original Message -
> From:Martin DeYoung via CnC-List
> To:cnc-list@cnc-list.com
> Cc:Martin DeYoung
> Sent: Monday, August 10, 2015 12:24
> Subject: Re: Stus-List 3GM30F Oil Pressure warning
>  
> Was there any noise from the engine that sounded like it was short of lube 
> oil pressure?
>  
> It is an easy and low cost test to buy a new oil pressure sending unit.  
> Install it and test again with the engine at normal operating temp.
>  
> If you still get the warning it is likely the lube oil pump.
>  
> Martin
> Calypso
> 1971 C&C 43
> Seattle
> From: CnC-List [cnc-list-boun...@cnc-list.com] on behalf of Hoyt, Mike via 
> CnC-List [cnc-list@cnc-list.com]
> Sent: Monday, August 10, 2015 9:17 AM
> To: cnc-list@cnc-list.com
> Cc: Hoyt, Mike
> Subject: Stus-List 3GM30F Oil Pressure warning
> 
> Oil changed in May. Used 15W 40
> Oil level checked July 22
> 300 mile delivery to Cape Breton (Dundee then Baddeck) July 23 – Aug 2
>  
> Yesterday after running engine at 2800 RPM for approx. 5.5 hrs a “clicking 
> sound” was heard in cockpit.  Thought at first was from Ram mic  but was 
> still there once disconnected.  Determined was coming from alarm speaker on 
> Yanmar panel.  Tapped panel and then Oil pressure light illuminated and alarm 
> sounded.  Shut down engine and sailed to dock (without crashing)
>  
> At dock started engine and at idle no alarm or light.  Revved up to 3000 RPM 
> and the light started flickering and a sputtering sound from the speaker (the 
> clicking sound we heard earlier) which was followed by full illumination of 
> Oil pressure light and full alarm siren.  Stoped engine and waited.
>  
> A few minutes later retarted engine and had no alarm at idle, followed by 
> sputtering and then full alarm at high rpms. Reduced RPMs to idle and alarm 
> stopped and light turned off.
>  
> Any thoughts? 
>  
> Boat is currently 3.5 hrs away by car so any parts will have to be taken with 
> me in advance
> ___
> 
> Email address:
> CnC-List@cnc-list.com
> To change your list preferenc

Re: Stus-List 3GM30F Oil Pressure warning

[Hoyt, Mike via CnC-List]

OK.

So the service manual says to connect the oil pressure gauge to the pilot lamp 
unit for primary pressure and lubricating oil pipe connector for secondary 
pressure.

Where is the pilot lamp unit?

Mike


From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of 
svpegasu...@gmail.com via CnC-List
Sent: Monday, August 10, 2015 2:48 PM
To: cnc-list@cnc-list.com
Cc: svpegasu...@gmail.com
Subject: Re: Stus-List 3GM30F Oil Pressure warning


Mike, summit racing is a great place to get gauges. Prices are good and 
delivery is fast.  The connection on the engine I believe is std 1/8th pipe 
thread. At least that was true on my 3qm30.

The list is on the right track for your problem. Good luck.

Doug Mountjoy

svPegasus

LF38

just west of Ballard, WA.





-- Original message--

From: Hoyt, Mike via CnC-List

Date: Mon, Aug 10, 2015 10:10

To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>;

Cc: Hoyt, Mike;

Subject:Re: Stus-List 3GM30F Oil Pressure warning


So likely the best place to start is to change the oil and filter first and 
then check oil pressure.

On phone to yanmar dealer to find out where to get a manual pressure guage and 
where I attach it to engine to test …

Engine was not putting off excessive heat that I could notice.  Did not get a 
chance to check coolant level but can top that up also.  I believe that is a 
different light on the panel though. We have the B type panel and Oil Pressure 
lamp is second from right while water temp warning lamp is third from right.  
The water temp lamp was not illuminated



From: CnC-List 
[mailto:cnc-list-boun...@cnc-list.com<mailto::cnc-list-boun...@cnc-list.com>]On 
Behalf Of S Thomas via CnC-List
Sent: Monday, August 10, 2015 2:01 PM
To: cnc-list@cnc-list.com<mailto:%20cnc-l...@cnc-list.com>
Cc: S Thomas
Subject: Re: Stus-List 3GM30F Oil Pressure warning

Also not expensive to get a mechanical oil pressure gauge and hook it up, even 
if you only want to do it temporarily. Actually just about any mechanical 
pressure gauge will work for test purposes, including air pressure gauges, just 
get one with an appropriate pressure range.

Steve Thomas
C&C27 MKIII
Port Stanley, ON
- Original Message -
From:Martin DeYoung via CnC-List<mailto:cnc-list@cnc-list.com>
To:cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>
Cc:Martin DeYoung<mailto:mdeyo...@deyoungmfg.com>
Sent: Monday, August 10, 2015 12:24
Subject: Re: Stus-List 3GM30F Oil Pressure warning


Was there any noise from the engine that sounded like it was short of lube oil 
pressure?



It is an easy and low cost test to buy a new oil pressure sending unit.  
Install it and test again with the engine at normal operating temp.



If you still get the warning it is likely the lube oil pump.



Martin

Calypso

1971 C&C 43

Seattle


From: CnC-List 
[cnc-list-boun...@cnc-list.com<mailto:[cnc-list-boun...@cnc-list.com>] on 
behalf of Hoyt, Mike via CnC-List 
[cnc-list@cnc-list.com<mailto:[cnc-list@cnc-list.com>]
Sent: Monday, August 10, 2015 9:17 AM
To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>
Cc: Hoyt, Mike
Subject: Stus-List 3GM30F Oil Pressure warning
Oil changed in May. Used 15W 40
Oil level checked July 22
300 mile delivery to Cape Breton (Dundee then Baddeck) July 23 – Aug 2

Yesterday after running engine at 2800 RPM for approx. 5.5 hrs a “clicking 
sound” was heard in cockpit.  Thought at first was from Ram mic  but was still 
there once disconnected.  Determined was coming from alarm speaker on Yanmar 
panel.  Tapped panel and then Oil pressure light illuminated and alarm sounded. 
 Shut down engine and sailed to dock (without crashing)

At dock started engine and at idle no alarm or light.  Revved up to 3000 RPM 
and the light started flickering and a sputtering sound from the speaker (the 
clicking sound we heard earlier) which was followed by full illumination of Oil 
pressure light and full alarm siren.  Stoped engine and waited.

A few minutes later retarted engine and had no alarm at idle, followed by 
sputtering and then full alarm at high rpms. Reduced RPMs to idle and alarm 
stopped and light turned off.

Any thoughts?

Boat is currently 3.5 hrs away by car so any parts will have to be taken with 
me in advance

___

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Re: Stus-List 3GM30F Oil Pressure warning

[svpegasus38]

Mike, summit racing is a great place to get gauges. Prices are good and 
delivery is fast.  The connection on the engine I believe is std 1/8th pipe 
thread. At least that was true on my 3qm30. The list is on the right track for 
your problem. Good luck. Doug MountjoysvPegasusLF38 just west of Ballard, 
WA.




-- Original message--From: Hoyt, Mike via CnC-List Date: Mon, Aug 10, 
2015 10:10To: cnc-list@cnc-list.com;Cc: Hoyt, Mike;Subject:Re: Stus-List 3GM30F 
Oil Pressure warning
So likely the best place to start is to change the oil and filter first and 
then check oil pressure. On phone to yanmar dealer to find out where to get a 
manual pressure guage and where I attach it to engine to test … Engine was not 
putting off excessive heat that I could notice.  Did not get a chance to check 
coolant level but can top that up also.  I believe that is a different light on 
the panel though. We have the B type panel and Oil Pressure lamp is second from 
right while water temp warning lamp is third from right.  The water temp lamp 
was not illuminated   From: CnC-List [mailto:cnc-list-boun...@cnc-list.com]On 
Behalf Of S Thomas via CnC-List
Sent: Monday, August 10, 2015 2:01 PM
To: cnc-list@cnc-list.com
Cc: S Thomas
Subject: Re: Stus-List 3GM30F Oil Pressure warning Also not expensive to get a 
mechanical oil pressure gauge and hook it up, even if you only want to do it 
temporarily. Actually just about any mechanical pressure gauge will work for 
test purposes, including air pressure gauges, just get one with an appropriate 
pressure range. Steve ThomasC&C27 MKIIIPort Stanley, ON- Original Message 
-From:Martin DeYoung via CnC-ListTo:cnc-list@cnc-list.comCc:Martin 
DeYoungSent: Monday, August 10, 2015 12:24Subject: Re: Stus-List 3GM30F Oil 
Pressure warning Was there any noise from the engine that sounded like it was 
short of lube oil pressure? It is an easy and low cost test to buy a new oil 
pressure sending unit.  Install it and test again with the engine at normal 
operating temp. If you still get the warning it is likely the lube oil pump. 
MartinCalypso1971 C&C 43SeattleFrom: CnC-List [cnc-list-boun...@cnc-list.com] 
on behalf of Hoyt, Mike via CnC-List [cnc-list@cnc-list.com]
Sent: Monday, August 10, 2015 9:17 AM
To: cnc-list@cnc-list.com
Cc: Hoyt, Mike
Subject: Stus-List 3GM30F Oil Pressure warningOil changed in May. Used 15W 
40Oil level checked July 22300 mile delivery to Cape Breton (Dundee then 
Baddeck) July 23 – Aug 2 Yesterday after running engine at 2800 RPM for approx. 
5.5 hrs a “clicking sound” was heard in cockpit.  Thought at first was from Ram 
mic  but was still there once disconnected.  Determined was coming from alarm 
speaker on Yanmar panel.  Tapped panel and then Oil pressure light illuminated 
and alarm sounded.  Shut down engine and sailed to dock (without crashing) At 
dock started engine and at idle no alarm or light.  Revved up to 3000 RPM and 
the light started flickering and a sputtering sound from the speaker (the 
clicking sound we heard earlier) which was followed by full illumination of Oil 
pressure light and full alarm siren.  Stoped engine and waited. A few minutes 
later retarted engine and had no alarm at idle, followed by sputtering and then 
full alarm at high rpms. Reduced RPMs to idle and alarm stopped and light 
turned off. Any thoughts?  Boat is currently 3.5 hrs away by car so any parts 
will have to be taken with me in 
advance___

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Re: Stus-List 3GM30F Oil Pressure warning

[Michael Brown via CnC-List]

One thing that can cause this is when the oil is not draining back from the 
head or wherever
fast enough. At higher RPM you might be pumping more oil up, and after a while 
sucking
air in the pan instead of oil.

You might be able to determine if this is the case by measuring the oil level 
by dipstick while
it is running with alarm on. Or you could pull the rocker cover and check the 
drain holes.
Note that in most non-sailboat applications the engine is level and multiple 
holes share the
duty. I am guessing your 3GM30F may be at an incline, so if the rear drain is 
clogged it might
cause the problem.

Or not. Lots of other options.

Michael Brown
Windburn
C&C 30-1

A heavy duty oil cleaner may help. 

Date: Mon, 10 Aug 2015 16:17:45 + 
From: "Hoyt, Mike"  
To: "cnc-list@cnc-list.com"  
Subject: Stus-List 3GM30F Oil Pressure warning 
Message-ID: 
     <169e312f80b4c044be2dc1780a7de72f0db...@hfxexc11.impgroup.com> 
Content-Type: text/plain; charset="utf-8" 
 
Oil changed in May. Used 15W 40 
Oil level checked July 22 
300 mile delivery to Cape Breton (Dundee then Baddeck) July 23 ? Aug 2 
 
Yesterday after running engine at 2800 RPM for approx. 5.5 hrs a ?clicking 
sound? was heard in cockpit.  Thought at first was from Ram mic  but was still 
there once disconnected.  Determined was coming from alarm speaker on Yanmar 
panel.  Tapped panel and then Oil pressure light illuminated and alarm sounded. 
 Shut down engine and sailed to dock (without crashing) 
 
At dock started engine and at idle no alarm or light.  Revved up to 3000 RPM 
and the light started flickering and a sputtering sound from the speaker (the 
clicking sound we heard earlier) which was followed by full illumination of Oil 
pressure light and full alarm siren.  Stoped engine and waited. 
 
A few minutes later retarted engine and had no alarm at idle, followed by 
sputtering and then full alarm at high rpms. Reduced RPMs to idle and alarm 
stopped and light turned off. 
 
Any thoughts? 
 
Boat is currently 3.5 hrs away by car so any parts will have to be taken with 
me in advance 
___

Email address:
CnC-List@cnc-list.com
To change your list preferences, including unsubscribing -- go to the bottom of 
page at:
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Re: Stus-List 3GM30F Oil Pressure warning

[Hoyt, Mike via CnC-List]

So likely the best place to start is to change the oil and filter first and 
then check oil pressure.

On phone to yanmar dealer to find out where to get a manual pressure guage and 
where I attach it to engine to test ...

Engine was not putting off excessive heat that I could notice.  Did not get a 
chance to check coolant level but can top that up also.  I believe that is a 
different light on the panel though. We have the B type panel and Oil Pressure 
lamp is second from right while water temp warning lamp is third from right.  
The water temp lamp was not illuminated



From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of S Thomas via 
CnC-List
Sent: Monday, August 10, 2015 2:01 PM
To: cnc-list@cnc-list.com
Cc: S Thomas
Subject: Re: Stus-List 3GM30F Oil Pressure warning

Also not expensive to get a mechanical oil pressure gauge and hook it up, even 
if you only want to do it temporarily. Actually just about any mechanical 
pressure gauge will work for test purposes, including air pressure gauges, just 
get one with an appropriate pressure range.

Steve Thomas
C&C27 MKIII
Port Stanley, ON
- Original Message -
From: Martin DeYoung via CnC-List<mailto:cnc-list@cnc-list.com>
To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>
Cc: Martin DeYoung<mailto:mdeyo...@deyoungmfg.com>
Sent: Monday, August 10, 2015 12:24
Subject: Re: Stus-List 3GM30F Oil Pressure warning


Was there any noise from the engine that sounded like it was short of lube oil 
pressure?



It is an easy and low cost test to buy a new oil pressure sending unit.  
Install it and test again with the engine at normal operating temp.



If you still get the warning it is likely the lube oil pump.



Martin

Calypso

1971 C&C 43

Seattle


From: CnC-List [cnc-list-boun...@cnc-list.com] on behalf of Hoyt, Mike via 
CnC-List [cnc-list@cnc-list.com]
Sent: Monday, August 10, 2015 9:17 AM
To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>
Cc: Hoyt, Mike
Subject: Stus-List 3GM30F Oil Pressure warning
Oil changed in May. Used 15W 40
Oil level checked July 22
300 mile delivery to Cape Breton (Dundee then Baddeck) July 23 - Aug 2

Yesterday after running engine at 2800 RPM for approx. 5.5 hrs a "clicking 
sound" was heard in cockpit.  Thought at first was from Ram mic  but was still 
there once disconnected.  Determined was coming from alarm speaker on Yanmar 
panel.  Tapped panel and then Oil pressure light illuminated and alarm sounded. 
 Shut down engine and sailed to dock (without crashing)

At dock started engine and at idle no alarm or light.  Revved up to 3000 RPM 
and the light started flickering and a sputtering sound from the speaker (the 
clicking sound we heard earlier) which was followed by full illumination of Oil 
pressure light and full alarm siren.  Stoped engine and waited.

A few minutes later retarted engine and had no alarm at idle, followed by 
sputtering and then full alarm at high rpms. Reduced RPMs to idle and alarm 
stopped and light turned off.

Any thoughts?

Boat is currently 3.5 hrs away by car so any parts will have to be taken with 
me in advance

___

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Re: Stus-List 3GM30F Oil Pressure warning

[S Thomas via CnC-List]

Also not expensive to get a mechanical oil pressure gauge and hook it up, even 
if you only want to do it temporarily. Actually just about any mechanical 
pressure gauge will work for test purposes, including air pressure gauges, just 
get one with an appropriate pressure range. 

Steve Thomas
C&C27 MKIII
Port Stanley, ON
  - Original Message - 
  From: Martin DeYoung via CnC-List 
  To: cnc-list@cnc-list.com 
  Cc: Martin DeYoung 
  Sent: Monday, August 10, 2015 12:24
  Subject: Re: Stus-List 3GM30F Oil Pressure warning


  Was there any noise from the engine that sounded like it was short of lube 
oil pressure?



  It is an easy and low cost test to buy a new oil pressure sending unit.  
Install it and test again with the engine at normal operating temp.



  If you still get the warning it is likely the lube oil pump.



  Martin

  Calypso

  1971 C&C 43

  Seattle


--

  From: CnC-List [cnc-list-boun...@cnc-list.com] on behalf of Hoyt, Mike via 
CnC-List [cnc-list@cnc-list.com]
  Sent: Monday, August 10, 2015 9:17 AM
  To: cnc-list@cnc-list.com
  Cc: Hoyt, Mike
  Subject: Stus-List 3GM30F Oil Pressure warning


  Oil changed in May. Used 15W 40

  Oil level checked July 22

  300 mile delivery to Cape Breton (Dundee then Baddeck) July 23 – Aug 2



  Yesterday after running engine at 2800 RPM for approx. 5.5 hrs a “clicking 
sound” was heard in cockpit.  Thought at first was from Ram mic  but was still 
there once disconnected.  Determined was coming from alarm speaker on Yanmar 
panel.  Tapped panel and then Oil pressure light illuminated and alarm sounded. 
 Shut down engine and sailed to dock (without crashing)



  At dock started engine and at idle no alarm or light.  Revved up to 3000 RPM 
and the light started flickering and a sputtering sound from the speaker (the 
clicking sound we heard earlier) which was followed by full illumination of Oil 
pressure light and full alarm siren.  Stoped engine and waited.



  A few minutes later retarted engine and had no alarm at idle, followed by 
sputtering and then full alarm at high rpms. Reduced RPMs to idle and alarm 
stopped and light turned off.



  Any thoughts?  



  Boat is currently 3.5 hrs away by car so any parts will have to be taken with 
me in advance



--


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Re: Stus-List 3GM30F Oil Pressure warning

[Joel Aronson via CnC-List]

Sounds like bad/loose wiring or a bad sending unit, with wiring the more
likely.  My 2 cents.

Joel
35/3
Annapolis

On Mon, Aug 10, 2015 at 12:55 PM, Hoyt, Mike via CnC-List <
cnc-list@cnc-list.com> wrote:

> No.  We were motoring in waves though.  Mostly from astern or on quarter
> so boat had been moving around.
>
>
>
> At dock was perfectly level
>
>
>
> *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of *William
> Walker via CnC-List
> *Sent:* Monday, August 10, 2015 1:49 PM
> *To:* cnc-list@cnc-list.com
> *Cc:* wwadjo...@aol.com
> *Subject:* Re: Stus-List 3GM30F Oil Pressure warning
>
>
>
> We're you motor sailing?  If heeled, as when motor sailing, I have
> experience oil pressure alarm.  I assumed the oil pick up was affected by
> heel of boat.  Oil level was mid level on stick when at rest.  A thought.
> Bill Walker
> CnC 36
>
>
>
> Sent from AOL Mobile Mail
>
>
> --
>
> On Monday, August 10, 2015 Hoyt, Mike via CnC-List 
> wrote:
>
> Oil changed in May. Used 15W 40
>
> Oil level checked July 22
>
> 300 mile delivery to Cape Breton (Dundee then Baddeck) July 23 – Aug 2
>
>
>
> Yesterday after running engine at 2800 RPM for approx. 5.5 hrs a “clicking
> sound” was heard in cockpit.  Thought at first was from Ram mic  but was
> still there once disconnected.  Determined was coming from alarm speaker on
> Yanmar panel.  Tapped panel and then Oil pressure light illuminated and
> alarm sounded.  Shut down engine and sailed to dock (without crashing)
>
>
>
> At dock started engine and at idle no alarm or light.  Revved up to 3000
> RPM and the light started flickering and a sputtering sound from the
> speaker (the clicking sound we heard earlier) which was followed by full
> illumination of Oil pressure light and full alarm siren.  Stoped engine and
> waited.
>
>
>
> A few minutes later retarted engine and had no alarm at idle, followed by
> sputtering and then full alarm at high rpms. Reduced RPMs to idle and alarm
> stopped and light turned off.
>
>
>
> Any thoughts?
>
>
>
> Boat is currently 3.5 hrs away by car so any parts will have to be taken
> with me in advance
>
> ___ Email address:
> CnC-List@cnc-list.com To change your list preferences, including
> unsubscribing -- go to the bottom of page at:
> http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
>
> ___
>
> Email address:
> CnC-List@cnc-list.com
> To change your list preferences, including unsubscribing -- go to the
> bottom of page at:
> http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
>
>
>


-- 
Joel
301 541 8551
___

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Re: Stus-List 3GM30F Oil Pressure warning

[Josh Muckley via CnC-List]

Cooling water flow?  When changing the light bulbs or wiring in the past it
is easy enough to imagine a mixup.  Checking engine temp is where I would
start.

You could also have a very slight dilution of your oil with fuel.  After it
gets hot enough the viscosity drops and causes your low pressure alarm.
The priming pumps have a  rubber diaphragm that when degraded allows diesel
into the crankcase.  Bad HP injector pump seals can also let fuel in the
crankcase.

Josh Muckley
S/V Sea Hawk
1989 C&C 37+
Solomons, MD
On Aug 10, 2015 12:18 PM, "Hoyt, Mike via CnC-List" 
wrote:

> Oil changed in May. Used 15W 40
>
> Oil level checked July 22
>
> 300 mile delivery to Cape Breton (Dundee then Baddeck) July 23 – Aug 2
>
>
>
> Yesterday after running engine at 2800 RPM for approx. 5.5 hrs a “clicking
> sound” was heard in cockpit.  Thought at first was from Ram mic  but was
> still there once disconnected.  Determined was coming from alarm speaker on
> Yanmar panel.  Tapped panel and then Oil pressure light illuminated and
> alarm sounded.  Shut down engine and sailed to dock (without crashing)
>
>
>
> At dock started engine and at idle no alarm or light.  Revved up to 3000
> RPM and the light started flickering and a sputtering sound from the
> speaker (the clicking sound we heard earlier) which was followed by full
> illumination of Oil pressure light and full alarm siren.  Stoped engine and
> waited.
>
>
>
> A few minutes later retarted engine and had no alarm at idle, followed by
> sputtering and then full alarm at high rpms. Reduced RPMs to idle and alarm
> stopped and light turned off.
>
>
>
> Any thoughts?
>
>
>
> Boat is currently 3.5 hrs away by car so any parts will have to be taken
> with me in advance
>
> ___
>
> Email address:
> CnC-List@cnc-list.com
> To change your list preferences, including unsubscribing -- go to the
> bottom of page at:
> http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
>
>
>
___

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Re: Stus-List 3GM30F Oil Pressure warning

[Hoyt, Mike via CnC-List]

No.  We were motoring in waves though.  Mostly from astern or on quarter so 
boat had been moving around.

At dock was perfectly level

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of William 
Walker via CnC-List
Sent: Monday, August 10, 2015 1:49 PM
To: cnc-list@cnc-list.com
Cc: wwadjo...@aol.com
Subject: Re: Stus-List 3GM30F Oil Pressure warning


We're you motor sailing?  If heeled, as when motor sailing, I have experience 
oil pressure alarm.  I assumed the oil pick up was affected by heel of boat.  
Oil level was mid level on stick when at rest.  A thought.
Bill Walker
CnC 36


Sent from AOL Mobile Mail


On Monday, August 10, 2015 Hoyt, Mike via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
Oil changed in May. Used 15W 40
Oil level checked July 22
300 mile delivery to Cape Breton (Dundee then Baddeck) July 23 – Aug 2

Yesterday after running engine at 2800 RPM for approx. 5.5 hrs a “clicking 
sound” was heard in cockpit.  Thought at first was from Ram mic  but was still 
there once disconnected.  Determined was coming from alarm speaker on Yanmar 
panel.  Tapped panel and then Oil pressure light illuminated and alarm sounded. 
 Shut down engine and sailed to dock (without crashing)

At dock started engine and at idle no alarm or light.  Revved up to 3000 RPM 
and the light started flickering and a sputtering sound from the speaker (the 
clicking sound we heard earlier) which was followed by full illumination of Oil 
pressure light and full alarm siren.  Stoped engine and waited.

A few minutes later retarted engine and had no alarm at idle, followed by 
sputtering and then full alarm at high rpms. Reduced RPMs to idle and alarm 
stopped and light turned off.

Any thoughts?

Boat is currently 3.5 hrs away by car so any parts will have to be taken with 
me in advance
___ Email address: 
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Re: Stus-List 3GM30F Oil Pressure warning

[William Walker via CnC-List]

We're you motor sailing?  If heeled, as when motor sailing, I have experience 
oil pressure alarm.  I assumed the oil pick up was affected by heel of boat.  
Oil level was mid level on stick when at rest.  A thought.
Bill Walker
CnC 36




Sent from AOL Mobile Mail

On Monday, August 10, 2015 Hoyt, Mike via CnC-List  
wrote:

Oil changed in May. Used 15W 40

Oil level checked July 22

300 mile delivery to Cape Breton (Dundee then Baddeck) July 23 – Aug 2

 

Yesterday after running engine at 2800 RPM for approx. 5.5 hrs a “clicking 
sound” was heard in cockpit.  Thought at first was from Ram mic  but was still 
there once disconnected.  Determined was coming from alarm speaker on Yanmar 
panel.  Tapped panel and then Oil pressure light illuminated and alarm sounded. 
 Shut down engine and sailed to dock (without crashing)

 

At dock started engine and at idle no alarm or light.  Revved up to 3000 RPM 
and the light started flickering and a sputtering sound from the speaker (the 
clicking sound we heard earlier) which was followed by full illumination of Oil 
pressure light and full alarm siren.  Stoped engine and waited.

 

A few minutes later retarted engine and had no alarm at idle, followed by 
sputtering and then full alarm at high rpms. Reduced RPMs to idle and alarm 
stopped and light turned off.

 

Any thoughts?  

 

Boat is currently 3.5 hrs away by car so any parts will have to be taken with 
me in advance

___ Email address: 
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Re: Stus-List 3GM30F Oil Pressure warning

[svpegasus38]

I know this sounds stupid... But have you checked the oil level? Low on oil 
will cause just what you are describing. Martin has a good suggestion. I had 
problems with my engine warning horn so I installed both mechanical oil 
pressure and water temp gauges. I put them inside the lazerette. 
Doug MountjoysvPegasusLF38 just west of Ballard, WA.




-- Original message--From: Hoyt, Mike via CnC-ListDate: Mon, Aug 10, 
2015 09:18To: cnc-list@cnc-list.com;Cc: Hoyt, Mike;Subject:Stus-List 3GM30F Oil 
Pressure warning
Oil changed in May. Used 15W 40Oil level checked July 22300 mile delivery to 
Cape Breton (Dundee then Baddeck) July 23 – Aug 2 Yesterday after running 
engine at 2800 RPM for approx. 5.5 hrs a “clicking sound” was heard in cockpit. 
 Thought at first was from Ram mic  but was still there once disconnected.  
Determined was coming from alarm speaker on Yanmar panel.  Tapped panel and 
then Oil pressure light illuminated and alarm sounded.  Shut down engine and 
sailed to dock (without crashing) At dock started engine and at idle no alarm 
or light.  Revved up to 3000 RPM and the light started flickering and a 
sputtering sound from the speaker (the clicking sound we heard earlier) which 
was followed by full illumination of Oil pressure light and full alarm siren.  
Stoped engine and waited. A few minutes later retarted engine and had no alarm 
at idle, followed by sputtering and then full alarm at high rpms. Reduced RPMs 
to idle and alarm stopped and light turned off. Any thoughts?  Boat is 
currently 3.5 hrs away by car so any parts will have to be taken with me in 
advance

___

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Re: Stus-List 3GM30F Oil Pressure warning

[Hoyt, Mike via CnC-List]

Thanks Martin

The engine sounded normal.  When I shut it down and checked the oil level it 
was mid range in acceptable area on dip stick.  The engine compartment did not 
seem hot.  There was no sign of oil or coolant leakage.  Oil level approx the 
same as when checked two weeks ago

One note that may be relevant is that the warning light and buzzer occasionally 
does not come on when key is ON and engine Stopped.  Possible loose connection 
because a small jiggle of starter key area and it works properly

Mike



From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Martin 
DeYoung via CnC-List
Sent: Monday, August 10, 2015 1:24 PM
To: cnc-list@cnc-list.com
Cc: Martin DeYoung
Subject: Re: Stus-List 3GM30F Oil Pressure warning


Was there any noise from the engine that sounded like it was short of lube oil 
pressure?



It is an easy and low cost test to buy a new oil pressure sending unit.  
Install it and test again with the engine at normal operating temp.



If you still get the warning it is likely the lube oil pump.



Martin

Calypso

1971 C&C 43

Seattle


From: CnC-List [cnc-list-boun...@cnc-list.com] on behalf of Hoyt, Mike via 
CnC-List [cnc-list@cnc-list.com]
Sent: Monday, August 10, 2015 9:17 AM
To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>
Cc: Hoyt, Mike
Subject: Stus-List 3GM30F Oil Pressure warning
Oil changed in May. Used 15W 40
Oil level checked July 22
300 mile delivery to Cape Breton (Dundee then Baddeck) July 23 - Aug 2

Yesterday after running engine at 2800 RPM for approx. 5.5 hrs a "clicking 
sound" was heard in cockpit.  Thought at first was from Ram mic  but was still 
there once disconnected.  Determined was coming from alarm speaker on Yanmar 
panel.  Tapped panel and then Oil pressure light illuminated and alarm sounded. 
 Shut down engine and sailed to dock (without crashing)

At dock started engine and at idle no alarm or light.  Revved up to 3000 RPM 
and the light started flickering and a sputtering sound from the speaker (the 
clicking sound we heard earlier) which was followed by full illumination of Oil 
pressure light and full alarm siren.  Stoped engine and waited.

A few minutes later retarted engine and had no alarm at idle, followed by 
sputtering and then full alarm at high rpms. Reduced RPMs to idle and alarm 
stopped and light turned off.

Any thoughts?

Boat is currently 3.5 hrs away by car so any parts will have to be taken with 
me in advance
___

Email address:
CnC-List@cnc-list.com
To change your list preferences, including unsubscribing -- go to the bottom of 
page at:
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Re: Stus-List 3GM30F Oil Pressure warning

[Martin DeYoung via CnC-List]

Was there any noise from the engine that sounded like it was short of lube oil 
pressure?



It is an easy and low cost test to buy a new oil pressure sending unit.  
Install it and test again with the engine at normal operating temp.



If you still get the warning it is likely the lube oil pump.



Martin

Calypso

1971 C&C 43

Seattle


From: CnC-List [cnc-list-boun...@cnc-list.com] on behalf of Hoyt, Mike via 
CnC-List [cnc-list@cnc-list.com]
Sent: Monday, August 10, 2015 9:17 AM
To: cnc-list@cnc-list.com
Cc: Hoyt, Mike
Subject: Stus-List 3GM30F Oil Pressure warning

Oil changed in May. Used 15W 40
Oil level checked July 22
300 mile delivery to Cape Breton (Dundee then Baddeck) July 23 – Aug 2

Yesterday after running engine at 2800 RPM for approx. 5.5 hrs a “clicking 
sound” was heard in cockpit.  Thought at first was from Ram mic  but was still 
there once disconnected.  Determined was coming from alarm speaker on Yanmar 
panel.  Tapped panel and then Oil pressure light illuminated and alarm sounded. 
 Shut down engine and sailed to dock (without crashing)

At dock started engine and at idle no alarm or light.  Revved up to 3000 RPM 
and the light started flickering and a sputtering sound from the speaker (the 
clicking sound we heard earlier) which was followed by full illumination of Oil 
pressure light and full alarm siren.  Stoped engine and waited.

A few minutes later retarted engine and had no alarm at idle, followed by 
sputtering and then full alarm at high rpms. Reduced RPMs to idle and alarm 
stopped and light turned off.

Any thoughts?

Boat is currently 3.5 hrs away by car so any parts will have to be taken with 
me in advance
___

Email address:
CnC-List@cnc-list.com
To change your list preferences, including unsubscribing -- go to the bottom of 
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