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
