Our 2003 Volvo Penta
suddenly stopped working from one day to another. We reversed out of our marina and as we put the boat
from reverse to drive, the boat lost
all power and started vibrating. I may have shifted from reverse to drive fast.
I cannot remember for sure if the engine
was already vibrating on the reverse part, but it had power, so I would say it was not.
revs fine in neutral.
If you put it into gear
it starts vibrating a lot and revs does not go above 800rpm. The revs does not change if you push the throttle. The vibration are getting worse though with more throttle on.
Sometimes it also “sticks” in gear
(since we had the issue). I tried to pull the throttle apart but didn’t manage too. However it seems working ok.
Checked so far:
-injectors cleaned + new nozzles fitted.
-no apparent air in the system.
-all injectors and cylinders are firing.
-fuel supply seems ok.
-prop seems good, dived twice.
-prop turns in gear albeit slowly.
I will change the fuel filter
, who knows..
It sounds like a gearbox/saildrive issue, but we cannot hear anything suspect. The gearbox oil
is clear as crystal.
Does anyone has an idea how I can identify if the issue is:
B. Engine related.
My thoughts are that the engine is vibrating because it’s sitting at 800rpm and it struggles to get going.
I am starting to have second thoughts on saildrive
Thank you for your ideas!