spark plug non foulers?
OK, ill try to explain this quick. My spark plug gap kept closing and i figured out the piston was hitting it closed. There is a sleeve in the cylinder head because someone stripped the plug hole threads, drilled them out, and put a sleeve in the head.
it needs to have a heli coil installed back in it and the right spark plug used in it,if the right plug is in the engine it wont do that,someone obviously used the wrong plug in it otherwise it wouldn't have did that to begin with,but the head may have