Hitchcocks Forum

Bad day, managed to strip the threads in the head for the pressure relief valve. Does anybody know can that be helicoiled. I certainly hope so given the finances

JFW, I assume you are talking about the decomp valve. You would have to scratch around and find an engineering place that can repair it. It can be done. 350 or 500, if 350 you could just plug it but remember you have to plug both threads because the upper thread seals off the decomp port into the exhaust

It's the same thread as the spark plug so should be a relatively common helicoil size.