Hi Rireefguy
I have the exact same engine with the exact same problem. Did you find what was wrong? Please advice before I end up disassembling the injectors.
Thanks in advance
Henning
Quote:
Originally Posted by rireefguy
So I had some problems with my Yanmar 2GM20F today. I actually first noticed it the last time I took the boat out. The water coming out of the exhaust is PITCH black. Looks like dirty oil, but no slick. I changed the oil last weekend and the oil level has not changed. So I was out today and I was motor-sailing with the engine turning around 2500rpm when I noticed it again. I went down to idle and it goes clear again. Then (at the worst possible moment) the engine started running funny and was only turning 1200rpm at the same throttle position. I tired to throttle up and it bogged down. Ended up shutting it down and sailing home. Additionally, it has been a little hard to start. I dont have anything to base this on as it is a new boat to me and my first diesel but it just seems longer than I would expect, especially when the engine is cold..
Here is what I am thinking:
I think this is a fuel issue. The PO said that he never let it get down to 1/2 a tank, and would always keep it topped off. I now think that he may have been doing this for a reason. (I am currently at just under a 1/2 tank (was going to fill up today but never made it =))
I also thought about draining the tank and will probably still do that if this works.
The plan:
Going to change the fuel filters tomorrow and fill up with fresh diesel. See what happens
Does this sound like I am in the ballpark or am I totally off base. I am kinda new to diesels. If that doesn't do the trick where do I look next, etc.
Thanks in advance!
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