i have an 01 mitsubishi galant, i have oil getting into my number 4 cylinder. but it looks like its coming from the bottom of the cylinder, is there a gasket there or is there just my valve cover grommet at the top?
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2001 Mitsubishi Galant Question: oil in my number 4 cylinder
Answer #1Superbob June 18, 2011, 10:45Master
If you really mean that oil is getting into bottom of the #4 cylinder, then you have piston or ring problems, or valve guide seal problems. You would not see this oil on the outside of the engine, it's all internal. You would see this oil by removing the sparkplug and looking into the cylinder with a small flashlight, and seeing oil puddling in the bottom of the cylinder. If this is so, then you have a failed valve guide seal, worn or stuck piston rings or a damaged piston. Sometimes piston ring sticking can be cleared up by removing the sparkplug, and putting a teaspoon or two of penetrating oil like Liquid Wrench into the cylinder and letting it sit overnight.
I don't think this is what you mean. I think you're seeing oil on the sparkplug base where it screws into the cylinder head. This is oil from the valve cover gasket or the rubber grommets retaining the valve cover. If so, you would see the oil on the sparkplug hex which is external to the cylinder. If so, then you probably need to reseal the valve cover.
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