Stripped Spark Plug!


Well-Known Member
So, I had a spark plug blow out on a fairly new 362 and it stripped the threads on the head. Is there a fix?


Well-Known Member
I've had a sparkplug cross thread before, my grandpa who must of had this happen before, took the old sparkplug and chapmpfered the threads with a grinder to turn it into a tap. Ran it in cleaning up the threads and then removed and installed the new sparkplug. It's a no/low cost solution, if you still have the material there for the threads to grab.

Tom Dunlap

Here from the beginning
There are ‘thread chasing’ taps available too

I’ve never done a head before but I’ve tapped into places where the metal shavings couldn’t remain. Having a small nozzle of a shop vac held by a helper to pull out the shavings. Go slow. You are gambling of course. In my experiences it was a safe bet. In your case pulling the head might not be much work