If the plug is coated with oil (not gas) then you may have a problem with the rinngs on the piston, or the piston itself, Tale a panel light and look into the cylinder to see the top of the piston. Turn the engine so that the piston is at the bottom, and you will also be able to see the cylinder walls. If they are scratched up really bad, then the rings have broken or turned sideways, if there is a hole or a crack in the piston, then look for a used engine. The lifters may be or may not be stuck open, but the element that is the key, is the oil on the plug. I am an advanced level, master technician with 23 years fixing cars. If you donot have a light that will fit into the spark plug hole, I know where to get one.
- posted
18 years ago