Re: Injection Limiter adjustment

I think, that if the limiter spring is not broken and there is nothing that
is preventing the parts associated with the spring from moving freely, it
will probably be OK to adjust it very carefully. I'm concerned about
putting more load on a broken or hung up spring and having the engine seem
to improve but then be responding improperly. Record the position of the
safety wire hole and carefully count and record turns. If it doesn't fix
things, put it back to the present position.

Looking at it is clearly the first thing to do. Look carefully for signs of
rust as well. If it doesn't look like it gets oil from the engine lube
system, put something on it.

Here's another idea:

Video the engine misbehaving. I'll hire half an hour of time from the
mechanic at my boatyard and Yanmar dealer who I think is pretty good and
take the video to show him. You can pay me for his time and I'll assure him
that you've already gotten the fuel system tight, etc.

It might make sense that the engine is using less fuel. Since maximum fuel
usage is during acceleration, the engine may not be accelerating when loads
change and actually saving fuel by coming up to the new load very slowly.
Although it sounds annoying, your boat just slows down slightly and you or
your autopilot add a touch of rudder to maintain course. With fuel prices
what they are, maybe you should find out what is wrong and do it to the
other engine:)

--
Roger Long



.

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