1971 beetle type 1, just had the 1600cc engine rebuilt, picked it up yesterday was driving today and a spark plug shot out of its mount stripping the threads on the engine. why did this happen?
driving the car and heard a loud 'pow' then engine started to run very poorly I pulled into
parking lot and found that a spark plug had been blown out of its mount stripping the
threads on the engine. plug threads appeared to be fine. What caused this and how
long to fix it?