Hi fellow sailers, I have a Yanmar
YSE12 which has a problem as follows;
runs and sounds good but under higher revs and load oil
is coming out of the exhaust
with the cooling water
and smoke. After running for some time the oil
gets very hot and decides to blow out of the crankcase breather.
The yacht is new to us so the history
is sketchy at best so I decided to strip the head
off and take the piston out for inspection
. All look in good condition as are the big end shells. The exhaust
manifold looks dry of oil so my thoughts are now that oil is getting into the water
system. Not sure why oil is blowing out of the crankcase breather?
I would welcome any advise or past experiences please.
Many thanks, Chris