Stus-List Re: C 29 mk2 battery supports

[John Heaton via CnC-List]

Yes please!

On Sat, Nov 18, 2023 at 3:02 PM Thomas Perison via CnC-List <
cnc-list@cnc-list.com> wrote:

> I don’t have dimensions - but can send you pics of rebuilding mine a few
> years ago. Upgraded it to 3 total.
>
> Tom Perison
> Therapy
> 29-2
> Buffalo
>
> Sent from my iPhone
>
> > On Nov 18, 2023, at 11:47 AM, John Heaton via CnC-List <
> cnc-list@cnc-list.com> wrote:
> >
> > Hi folks - does anyone have the dimensions or a photo of the plywood
> battery supports on a 29 mk2?  It looks like mine has rotted away and I
> can’t tell its original sizing.
> >
> > Thanks
> >
> > Double on the Rocks
> > CAN 335
> > Toronto
> > Please show your appreciation for this list and the Photo Album site and
> help me pay the associated bills.  Make a contribution at:
> > https://www.paypal.me/stumurray
> > Thanks for your help.
> > Stu
> Please show your appreciation for this list and the Photo Album site and
> help me pay the associated bills.  Make a contribution at:
> https://www.paypal.me/stumurray
> Thanks for your help.
> Stu
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: Water in the oil

[Korbey Hunt via CnC-List]

You can save the old one and have it pressure tested to confirm diagnosis, if 
good you can have it boiled out for next time.  Any radiator shop should do.

Get Outlook for Android

From: Doug Mountjoy via CnC-List 
Sent: Saturday, November 18, 2023 10:42:04 AM
To: cnc-list@cnc-list.com 
Cc: Doug Mountjoy 
Subject: Stus-List Water in the oil

Here is an update on my water\oil issue. As the oil cooler is raw water cooled, 
and the oil lines are attached via banjo fittings. Testing was next to 
impossible here. I opted to replace the cooler. I'm not 100% sure it was the 
cooler, and not severe condensation, but I feel good about the repair.
I will say it took less time to reassemble than it did to tear it apart. I 
reassembled in the morning, as per the coarse of things. It was hot and muggy 
in the morning, 15 minutes after I finished the temp dropped 10 degrees and a 
light breeze along with cloud cover came along. Go figure. Lol.

Douglas Mountjoy
1988 C LF 39
Mexico at large
1984 Sabre 34
Port Orchard, WA

Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: C 29 mk2 battery supports

[Thomas Perison via CnC-List]

I don’t have dimensions - but can send you pics of rebuilding mine a few years 
ago. Upgraded it to 3 total. 

Tom Perison
Therapy 
29-2
Buffalo 

Sent from my iPhone

> On Nov 18, 2023, at 11:47 AM, John Heaton via CnC-List 
>  wrote:
> 
> Hi folks - does anyone have the dimensions or a photo of the plywood battery 
> supports on a 29 mk2?  It looks like mine has rotted away and I can’t tell 
> its original sizing. 
> 
> Thanks
> 
> Double on the Rocks
> CAN 335
> Toronto
> Please show your appreciation for this list and the Photo Album site and help 
> me pay the associated bills.  Make a contribution at:
> https://www.paypal.me/stumurray
> Thanks for your help.
> Stu
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: Engine hoses

[ALAN BERGEN via CnC-List]

Remember to check the fuel fill hose. I was working in a locker, one time,
and brushed against the fuel fill hose. I discovered cracks in it, and
after close examination I realized it needed to be replaced.


Alan Bergen
35 Mk III Thirsty
Rose City YC
Portland, OR



On Sat, Nov 18, 2023 at 10:31 AM Dennis C. via CnC-List <
cnc-list@cnc-list.com> wrote:

> Just a reminder to all to check the hoses on your engine.  Just completed
> an 11 day cruise on Touche'.  Once in the home slip, I smelled coolant.
> Investigation revealed a pinhole leak in the hose that runs from the
> exhaust manifold to the heat exchanger on the back of my Universal 25XPB.
> On removal, the hose was very deteriorated.  The engine was installed in
> 2003 and has about 2000 hours on it.
>
> The last couple hours of the trip was pounding into 18-20 knots on the
> nose.  It would not have been a good time for the engine to overheat.
>
> I will be replacing all the hoses on the engine.
>
> --
> Dennis C.
> Touche' 35-1 #83
> Mandeville, LA
> Please show your appreciation for this list and the Photo Album site and
> help me pay the associated bills.  Make a contribution at:
>
> https://urldefense.com/v3/__https://www.paypal.me/stumurray__;!!LIr3w8kk_Xxm!vOqqWRkmvyisOAKB2qbG0HW6NaK4ZEldTQB9DnCmv9rkgNmY3_0Pp_3Re0mOoU0iAglRQi0IcZIqk5Ij6vsLqHY$
> Thanks for your help.
> Stu
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Engine hoses

[Dennis C. via CnC-List]

Just a reminder to all to check the hoses on your engine.  Just completed
an 11 day cruise on Touche'.  Once in the home slip, I smelled coolant.
Investigation revealed a pinhole leak in the hose that runs from the
exhaust manifold to the heat exchanger on the back of my Universal 25XPB.
On removal, the hose was very deteriorated.  The engine was installed in
2003 and has about 2000 hours on it.

The last couple hours of the trip was pounding into 18-20 knots on the
nose.  It would not have been a good time for the engine to overheat.

I will be replacing all the hoses on the engine.

-- 
Dennis C.
Touche' 35-1 #83
Mandeville, LA
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Water in the oil

[Doug Mountjoy via CnC-List]

Here is an update on my water\oil issue. As the oil cooler is raw water
cooled, and the oil lines are attached via banjo fittings. Testing was next
to impossible here. I opted to replace the cooler. I'm not 100% sure it was
the cooler, and not severe condensation, but I feel good about the repair.
I will say it took less time to reassemble than it did to tear it apart. I
reassembled in the morning, as per the coarse of things. It was hot and
muggy in the morning, 15 minutes after I finished the temp dropped 10
degrees and a light breeze along with cloud cover came along. Go figure.
Lol.

Douglas Mountjoy
1988 C LF 39
Mexico at large
1984 Sabre 34
Port Orchard, WA
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List C 29 mk2 battery supports

[John Heaton via CnC-List]

Hi folks - does anyone have the dimensions or a photo of the plywood
battery supports on a 29 mk2?  It looks like mine has rotted away and I
can’t tell its original sizing.

Thanks

Double on the Rocks
CAN 335
Toronto
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: Recommendations to rebuild hydraulic cylinders for backstay

[cenelson--- via CnC-List]

Thanks for that information—amazing what expertise is available via the 
listers—big shoutout to Stu!!
My thought is that the shop could source all the o-rings/seals needed but they 
might not want to bother with the detective work involved and this time would 
drive up the repair cost.
A ‘kit’ probably saves them and the customer this time/trouble. Plus they might 
need to destroy some of the seals to determine what they need!
Thanks again—actually the cylinder is usually released after the boat is in the 
slip. But I was doing that to relax the rig—never thought the cylinder could 
use some relaxation as well but it certainly makes sense.
Charlie


Sent from the all new AOL app for iOS


On Saturday, November 18, 2023, 9:25 AM, Rick Brass via CnC-List 
 wrote:


Charlie;

 

You are essentially correct in assuming that an hydraulics shop can source the 
needed parts even though Navtec or other back stay adjuster maker no longer 
supply a kit.

 

After nearly 40 years experience in the construction machinery and forklift 
industry, I can confidently say that most any hydraulics shop (or industrial 
equipment dealer) has the skill set and tools for the job. But they will 
probably need to identify and source the various wear parts and seals in the 
pump and cylinder. After all, they normally work on hydraulic cylinders that 
are designed for 10,000 to 40 or 50,000 PSI pressures and are a lot larger in 
diameter that what is used on a boat.

 

All hydraulic cylinders leak, even brand new ones. Initially it is very slow 
leakage primarily around the seal between the piston and the cylinder wall 
resulting from the pressure differential between the top and bottom of the 
piston. As the seal wears the leakage gets higher over time. Best to relieve 
the pressure on your back stay adjuster when you get off the boat. If you leave 
the adjuster at, say 2000 pounds, and come back two weeks later and see 1500 or 
1000 I would not be too worried. One week and dropped to near zero would 
probably indicate a need for service.

 

The most likely source for wear is environmental contamination coming in 
through the seal around the piston shaft connected to your backstay, as has 
already been pointed out. The suggestion to keep the rod clean and maybe put a 
felt ring around the top of the cylinder as a wiper is a good one to catch the 
potential contamination and fine dust particles that can cause wear. As the 
shaft seal wears and lets contamination into the cylinder, you get increased 
wear on the piston seal and increasing internal pressure leakage over time.

 

I'm not sure that temperatures will have much effect on the life of seals and 
o-rings. Although I can see that sub zero temperatures could cause some thermal 
contraction that would exacerbate any small leakage that might already exist 
when the piston is left under pressure. As far as high temperatures, we're not 
talking about hundreds of degrees that will destroy the seals, and I wouldn't 
expect the seals to soften enough to be damaged by friction, but I high temps 
from southern suns would accelerate the aging of the material to some degree.

 

But one the whole, Charlie, I would guess that 15 years between rebuilds of 
your adjuster would be pretty normal.

 

Rick Brass

Imzadi

C 38 mk2 (with an old-style mechanical back stay adjuster using a winch 
handle)

Washington, NC

 

-Original Message-
From: Stus-List 
Sent: Nov 17, 2023 7:14 PM
To: Stus-List 
Cc: cenel...@aol.com 
Subject: Stus-List Re: Recommendations to rebuild hydraulic cylinders for 
backstay

 
For the 2nd time in its 30 yr life, I left my Navtec cylinder with the local 
hydraulic shop for a rebuild. Unfortunately it’s so old that complete rebuild 
kits are not available but he is replacing what he can with what is available 
re seals, etc. Since it is basically a manual pump and assuming no scoring or 
other damage to the metal parts, I think that any disposable parts are either 
seals or ‘0-rings’ which are likely available in the appropriate sizes and 
diameters individually from McMaster-Carr. My thought is to tell him to source 
the individual items and build a rebuild kit himself. OTOH, I have never seen 
the inside of any hydraulic pump! Am I oversimplifying this or is the hydraulic 
shop just doing the ‘rebuild’ with what parts of the rebuild are easily and 
relatively cheaply available to keep the rebuild simple without disassembling 
and sourcing the parts that would likely be part of a complete rebuild kit?

Charlie NelsonWater Phantom1995 C 36 XL/kcb

Sent from the all new AOL app for iOS

On Friday, November 17, 2023, 6:27 PM, David Risch via CnC-List 
 wrote:


Just go to a local hydraulic shop.  Sorry as a Navtech “technician” ripped me 
off for two “re-builds” in two years at $500 an incompetent rebuild.  
Construction guys don’t tolerate that crap.   $100 once and done.   It is just 
a pump.

 

From: Matthew L. Wolford via CnC-List  
Sent: Friday, 

Stus-List Re: Recommendations to rebuild hydraulic cylinders for backstay

[Rick Brass via CnC-List]

Charlie;

You are essentially correct in assuming that an hydraulics shop can source the 
needed parts even though Navtec or other back stay adjuster maker no longer 
supply a kit.

After nearly 40 years experience in the construction machinery and forklift 
industry, I can confidently say that most any hydraulics shop (or industrial 
equipment dealer) has the skill set and tools for the job. But they will 
probably need to identify and source the various wear parts and seals in the 
pump and cylinder. After all, they normally work on hydraulic cylinders that 
are designed for 10,000 to 40 or 50,000 PSI pressures and are a lot larger in 
diameter that what is used on a boat.

All hydraulic cylinders leak, even brand new ones. Initially it is very slow 
leakage primarily around the seal between the piston and the cylinder wall 
resulting from the pressure differential between the top and bottom of the 
piston. As the seal wears the leakage gets higher over time. Best to relieve 
the pressure on your back stay adjuster when you get off the boat. If you leave 
the adjuster at, say 2000 pounds, and come back two weeks later and see 1500 or 
1000 I would not be too worried. One week and dropped to near zero would 
probably indicate a need for service.

The most likely source for wear is environmental contamination coming in 
through the seal around the piston shaft connected to your backstay, as has 
already been pointed out. The suggestion to keep the rod clean and maybe put a 
felt ring around the top of the cylinder as a wiper is a good one to catch the 
potential contamination and fine dust particles that can cause wear. As the 
shaft seal wears and lets contamination into the cylinder, you get increased 
wear on the piston seal and increasing internal pressure leakage over time.

I'm not sure that temperatures will have much effect on the life of seals and 
o-rings. Although I can see that sub zero temperatures could cause some thermal 
contraction that would exacerbate any small leakage that might already exist 
when the piston is left under pressure. As far as high temperatures, we're not 
talking about hundreds of degrees that will destroy the seals, and I wouldn't 
expect the seals to soften enough to be damaged by friction, but I high temps 
from southern suns would accelerate the aging of the material to some degree.

But one the whole, Charlie, I would guess that 15 years between rebuilds of 
your adjuster would be pretty normal.

Rick Brass
Imzadi
CC 38 mk2 (with an old-style mechanical back stay adjuster using a winch 
handle)
Washington, NC

-Original Message-
From: Stus-List 
Sent: Nov 17, 2023 7:14 PM
To: Stus-List 
Cc: cenel...@aol.com 
Subject: Stus-List Re: Recommendations to rebuild hydraulic cylinders for 
backstay

96For the 2nd time in its 30 yr life, I left my Navtec cylinder with the local 
hydraulic shop for a rebuild. 
Unfortunately its so old that complete rebuild kits are not available 
but he is replacing what he can with what is available re seals, etc.
 
Since it is basically a manual pump and assuming no scoring or other damage to 
the metal parts, I think that any disposable parts are either seals or 
0-rings which are likely available in the appropriate sizes and 
diameters individually from McMaster-Carr.
 
My thought is to tell him to source the individual items and build a rebuild 
kit himself.
 
OTOH, I have never seen the inside of any hydraulic pump!
 
Am I oversimplifying this or is the hydraulic shop just doing the 
rebuild with what parts of the rebuild are easily and relatively 
cheaply available to keep the rebuild simple without disassembling and sourcing 
the parts that would likely be part of a complete rebuild kit?

Charlie Nelson
Water Phantom
1995 CC 36 XL/kcb

Sent from the all new AOL app for iOS (Sent from the all new AOL app for iOS)

On Friday, November 17, 2023, 6:27 PM, David Risch via CnC-List 
 wrote:
Just go to a local hydraulic shop.  Sorry as a Navtech technician 
ripped me off for two re-builds in two years at $500 an 
incompetent rebuild.  Construction guys dont tolerate that crap.   $100 
once and done.   It is just a pump.

From: Matthew L. Wolford via CnC-List  Sent: Friday, 
November 17, 2023 2:12 PMTo: Stus-List Cc: Matthew L. 
Wolford Subject: Stus-List Re: Recommendations to rebuild 
hydraulic cylinders for backstay



I also like Lew, whom I contacted based on recommendations from this list.  
That said, hes not from NJ (far from it), and shipping cost almost as 
much as the work.  Also, the rebuild work I had done was prophylactic, and my 
unit now has a very minor leak that it didnt have before.  Im 
sure hed fix it if I sent it back. Bottom line: as much as I like Lew, I 
suggest finding someone local.
Sent from my iPhone


On Nov 17, 2023, at 1:37 PM, Dennis C. via CnC-List mailto:cnc-list@cnc-list.com)> wrote:


Second Lew Townsend.  He rebuilt mine after another Navtec rebuilder botched 
it.  Excellent to work with.



--