Hey!
The previous owner of my XJ put a bit too much oil on the most recent air filter, and I think that some may have gotten sucked into an engine cylinder. Does anybody know how to get the oil out of there?
Thanks!

 

When I got water in mine I pulled the plugs, disabled the coil and turned over the motor until I shot it all out.

 

What coil are you speaking of, and how does one go about disabling it? Thanks!

 

A tiny amount of oil, from a air filter, would be burned up in the cylinders in a second or two and long gone.

 

Ok my fault. Not every 4.0 had a coil, some has DIS or coil packs. So just disable the ignition depending on which one you have. Whatever controls the spark, unplug it.

 

I don't think this is any concern.

If you've got blue smoke continuously coming out the back, THEN you have a problem.

 

 

Ok my red flag just went up. Why do you think that there's oil in the combustion chamber?

 

Well, he said that there was too much oil on the air filter. Why would any air filter need oil on it? I've never had to oil up an air filter. Except for K&Ns, I don't think there's very many. He also didn't give any other symptoms. Is there oil burning or the smell of burning oil? Is there blue smoke? Oil in an engine cylinder won't do anything, unless there's so much that it hydrolocks.

 

Symptoms would be nice so we could help solve the problem or at least get them pointed in the right direction.

 

I'm only speculating that there might be a bit of standing oil in there. The symptoms are that the engine hiccups quite a bit on startup and then alternates between losing power and revving itself during the first minute of driving. After that, it works beautifully.

 

Clean up IAC and throttle body. Run some fuel injector cleaner through it... Check manifold temp sensor and clean it.

 

Change over from diesel fuel to gasoline.

Gasoline is cheaper.

 

? I thought that diesel would just trash a gas engine, anyway lol

 

Old man time here. Another old mechanic trick was to take some oil out of our engine (quart or so) and refill with diesel or kerosene. Works but seafoam is safer lol