oliver 1655 diesel blowing oil out exhaust.

Trey Parker · Nov 6, 2013

I have an Oliver 1800 with a 1655 diesel engine in it and last weekend I was trying to start it and never would so I had to pull it off and I finally got it to start and when I was letting it warm up I noticed oil was coming out the exhaust. So today I pulled the in injectors out to go get them tested and I also took the exhaust manifold off and the #4 exhaust port was full of oil. Anyone know what"s going on? Thanks!

bison · Nov 6, 2013

If the injector test good you may have a Bad valve seal or broken piston rings on that hole

Dick W. · Nov 7, 2013

Maybe a stuck exhaust valve on that cylinder. Take the valve cover off and see if that valve is down part way and won't come up.

oliver90owner · Nov 8, 2013

You will likely regret not pulling the exhaust manifold and just replacing that one duff injector.

That would likely be my first guess, but I would also be looking at the valve gear for that cylinder if my pop tester showed the injector as good - well not stuck open or just jetting.

It could be a non-opening inlet valve. Compression can be roughly checked by turning the engine slowly - a dead pot would be easy to spot, particularly knowing when to expect it.

Another non-invasive test would be a compression check on that cylinder.

All better alternatives to pulling it to pieces to find the fault.

Anyhow the deed is done. If the injectors prove OK, the first place I would be checking is the inlet tappet on that cylinder.

RAB

oliver 1655 diesel blowing oil out exhaust.

Trey Parker

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bison

Well-known Member

Dick W.

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oliver90owner

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