Also, don't forget to check the stop and throttle cables at the engine. I
had a loss of power on my 2GM20, and it turned out that the stop mechanism
on the engine was gummed up and only opened part way when the stop handle
was pushed all of the way down in the cockpit.
-----Original Message-----
From: Indigo
Sent: Monday, August 20, 2012 10:16 AM
To: cnc-list@cnc-list.com
Subject: Re: Stus-List Yanmar problem
Inability to increase revs could also be caused by a partially blocked
elbow.
Jonathan
Indigo - 35MkIII
Southport CT
-----Original Message-----
From: cnc-list-boun...@cnc-list.com [mailto:cnc-list-boun...@cnc-list.com]
On Behalf Of Joel Aronson
Sent: Monday, August 20, 2012 7:22 AM
To: cnc-list@cnc-list.com
Subject: Stus-List Yanmar problem
Jackson
Loose alternator belt and dirty bottom? Getting black smoke when u
try to push the rpms? (changed the subject line)
Joel Aronson
On Aug 20, 2012, at 7:03 AM, jackson maddux <jackson.mad...@gmail.com>
wrote:
We are having some mechanical problems with our Yanmar 2GMF. I am hoping
for some advice.....
First admission: other than changing oil, we have not been too good with
our diesel. The boat has also not had much use this summer (about 5x
total).
The hull is scummy, but not encrusted, so we know that the hull is not the
whole problem. A few barnacles on the shaft, but nothing more than usual for
this time of year.
The problem: About 2 weeks ago, my boat partner went for a little motor
cruise and the boat would not go past about 3 knots (normal for us at 2500
RPM is about 4-5 knots).
Yesterday, I got on board and the boat would not accelerate nearly as fast
as before. The engine would not go past 2800 RPM (3300 is usual for our
engine, 3400 is the max rating). The max speed was about 3.5 knots after a
friend, who is a mechanic, bled the injectors and told us to get a new air
filter.
He also told us to get a new fuel filter (and a "better" one than we
have..racor R12P is the name on the filter).
The "charge" light goes on when the engine is on, complete with it's
associated buzzer noise. However, the light extinguishes if the RPM goes
up. We can get the alarm to turn off if we change the switch to
"illumination" from the default "on" position.
Finally: the propeller shaft now has a distinct vibration to it and the
negine seems to bounce around more than it did when we bought the boat 2
years ago. The engine mounts look ok to my amateur eyes. However, we do
have powdery rubber-smelling material in the bilge.
The questions:
1. Bad alternator?
2. New filters etc would be helpful?
3. New engine mounts needed?
4. Anything else that we might be missing before I can a mechanic?
thanks for any replies.
-Jackson Maddux
Schiehallion
C&C 32
_______________________________________________
This List is provided by the C&C Photo Album
http://www.cncphotoalbum.com
CnC-List@cnc-list.com
_______________________________________________
This List is provided by the C&C Photo Album
http://www.cncphotoalbum.com
CnC-List@cnc-list.com
_______________________________________________
This List is provided by the C&C Photo Album
http://www.cncphotoalbum.com
CnC-List@cnc-list.com
_______________________________________________
This List is provided by the C&C Photo Album
http://www.cncphotoalbum.com
CnC-List@cnc-list.com
