I was in the process of testing a replacement engine that came from the rust belt when a spark plug broke off flush with the head.
I got the porcelain out in one piece but now I'm fighting to get the threaded portion out. I've soaked it like mad with liquid wrench and tried using Mapp Gas on it but I'm worried about the flame shooting down inside the cylinder or damaging the bolt/gasket.
I got the porcelain out in one piece but now I'm fighting to get the threaded portion out. I've soaked it like mad with liquid wrench and tried using Mapp Gas on it but I'm worried about the flame shooting down inside the cylinder or damaging the bolt/gasket.