as the title says i have oil built up on top of the pistons and in the spark plug holes. all pistons pass a compression test so i dont think that it is a ring. what other things should i check? valve cover seals, i seen something about a number 3 cylinder gasket? idk where the oil is getting into the valley....ideas?
oil on top of pistons and in spark plug holes?
- Thread starter drewmiller5007
- Start date
The spark plugs are sealed by the galley cover in all cars that are OHC. Or some other device, like a tube you see on the 5SFE. After 20+ years, they leak. The valve cover gasket can lean excessively, and oil can still be stopped from entering the comubstion chamber.