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From: Mike Cowan (no email)
Date: Wed Dec 01 2004 - 17:47:26 EST
Hi Ken,
I do not know that motor so I cannot give "common" leakage causes. I have
worked on a lot of oil leaks though, and sometimes even the larger leaks
can be hard to find. The first thing to do is to clean the engine well, no
wet oil showing. Then run it and watch diligently. Make sure the drip pan
is clean too, so you can see it hitting the pan even if you don't spot it
running off the engine. Shut the engine down a soon as you see oil, and
then try to trace it to the source. If it runs too long oil might get
eveywhere and you will have to clean again. For small leaks you can get a
dye at the auto parts store that can be seen under a black light. That is
used for slow leaks generally.
Once you have an idea where it is coming from then you can decide if it is
a DYI job, or if you will need to hire it done.
Mike
PS- Nice boat name!
At 05:13 PM 12/1/2004, Ken Tischler wrote:
>The boat we recently purchased has an Onan MDJF 15KW generator. It was
>obvious when we bought the boat that the genny was leaking a little oil. On
>our five day trip to bring her home to New Orleans from Galveston, I
>probably added 2-3 quarts total. Now it is leaking much more. I have to shut
>it down every 6-8 hours or so and add at least 2 quarts.
>
>I can't tell where it is leaking. The unit is sitting directly on a drip
>pan, in which the leaking oil accumulates. I have looked all over the areas
>of the generator that I can get to and cannot see anything what would
>indicate a leak in those areas. Of course, the whole genny is kind of a mess
>(on our to-do list), and it would be difficult to see a minor leak. But I
>would think this much of a leak would be obvious.
>
>So, I have a couple of questions. First, where should I be looking for a
>leak like this? Is there a common point on the engine where this happens? A
>failed seal? Pan gasket? Second, is the repair of this something I could
>tackle myself, or should I contact a mechanic to come have a look?
>
>This is my first boat with diesels, and a generator. So my experience with
>these things is nil. Guess I am going to have to learn fast!
>
>Thanks,
>
>Ken Tischler
>Microship
>Defever 49 RPH
Mike Cowan
MV Sue's Pool III
65 Hatteras LRC hull #2
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