Having a problem and need all the help i can get. I have a 2yr old sailboat with 1000 hrs on the yanmar engine
, which i have maintained very well. I also have the ZF dock
and go system mated to the engine
. The boat traveled flawlessly from the east coast
down to florida
. The next time out after 5 weeks of sitting it would not rev above 2200 rpms while under way, also while this may confuse the issue it seemed to pull to the right. it has steered very straight so that felt odd.....i returned to my slip rather than the long trip i was going to take.....first i ahd a diver come and clean the bottom and inspect for a potential snag that kept the revs down and possibly contributed to the pull.....he found nothing and the prop turns freely by hand. he also watched while i engaged the doc and go which seemingly functioned as it should. I then had a ZF technician come and use his analytical tool on the ZF....no fault codes there...let me mention here that tied up at the dock
with the trans not engaged the engine revs to 3200 no problem.....sounds just like it should...no noise
...no smoke, no strange vibrations......also tied up if i engage the trans it will only turn 2200 rpms......again sound prefectly smooth. I have changed all the fuel
filters and still the same issue......the throttle was recalibrated by th ZF tech and u can see it move from stop to stop.
Not sure where to turn now and ZF and Yanmar
don't either.....the yanmar kid who showed up suggested injectors or injector pump
....sound a little early at 1000 hrs for that and not in gear
it runs up to 3200 just like it should.
I have seen a lot of knowledge on this site and i sure hope some of it can help now.....
Thanks in advance