05-04-2023, 01:55 PM
Well that's good news, I think!
Jamie at Seven Workshop sells oversize screws specifically for this situation.
I'm not sure I'd attempt to thread it oversize in situ though, unless you are really confident you can catch all the swarf generated.
Again, perhaps a job for next time the engine's apart?
If there's still a viable thread I think I'd try a locking sealant on it e.g. perhaps Loctite 243? (medium strength, tolerates some contamination, suitable for all metals, seals threads, and most importantly, dismountable!) Clean the threads as best you can first.
A new (same size) plug <might> give you better thread engagement if the old one is worn.
Jamie at Seven Workshop sells oversize screws specifically for this situation.
I'm not sure I'd attempt to thread it oversize in situ though, unless you are really confident you can catch all the swarf generated.
Again, perhaps a job for next time the engine's apart?
If there's still a viable thread I think I'd try a locking sealant on it e.g. perhaps Loctite 243? (medium strength, tolerates some contamination, suitable for all metals, seals threads, and most importantly, dismountable!) Clean the threads as best you can first.
A new (same size) plug <might> give you better thread engagement if the old one is worn.