I had to have my supercharger replaced due to the wearing of the compressor blades that apparently touched together? After the new install, about a week later I had the check engine light come on and the engine was running rough. The check engine said "misfire" in #7 cylinder. I pulled the plug and the gap was completly closed and looked like it was tapped closed and I remember a pinging sound in the engine. I ran the engine with the plug hole open and replaced the plug and the car ran fine..for two weeks and it did it again..the plug looks like it had been peppered and it had little dings all around the gap edge. I repeated the engine runnning with the plug out and now the next day another occurrance . .. I cannot understand why this piece has not caused valve damage..or maybe it has but the car runs fine till the plug shows little dings all around the edge and the gap is closed. Some say it is due to detonation or running lean in that cylinder andyway has anyone else heard of this. Only one cyllinder?
