I posted in December asking about a rebuild
on a yanmar fuel
injection pump. The pump was rebuilt and re-installed and everything seemed fine. However now I notice a rising oil
level and the oil
has a fuel
smell to it. I'm getting about .5-.75 QT more oil in 60 hrs of engine
I've removed the lift
pump and inspected the diaphragm
. There are some small cracks in the surface of the diaphragm
, but no obvious failure. I replaced it just in case that's where the fuel is getting into the oil.
My question is: Is it possible for fuel to get into the lube oil through the injection pump?
runs fine, though after re-installing the rebuilt fuel injection pump it has been a little hard to start. It used to fire up after 1-2 seconds of cranking, now it takes 3-4 and may 'ka-chunk-ka-chunk-ka-chunk' a bit before starting. I think I may have the timing a degree or two retarded and am attributing this hard starting to the timing.
Any ideas/comments would be appreciated...
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