I have a four-cyl Isuzu marine diesel
, known as a Pisces.
I have some overheating
problems in the past, but seem to have solved
them. Now I have a slightly different problem.
I'm getting some sort of a leak in what I believe is the raw water
side of the equation. Not a lot, but enough to build up in the bilge
at an unpleasant rate. It doesn't seem to negatively affect the proper cooling
of the engine
When I look for the source, I can't pinpoint it -- wherever it's coming from is inconveniently hidden from view. I can't find any leaks
at the water
pump or around the heat exchanger
which leads to my next (stupid) question. What the hell is the cylinder-like object that straddles the transmission
? There's a water hose coming from one side of it and I wonder if it's some sort of a heat exchanger
(for the tranny?) and if the hose from it could be the source?
Any thoughts much appreciated.