sealing rocker shaft studs

What do you put on rocker shaft studs to keep them from trying to unscrew when taking the shafts on and off.
Mick

You could bunger up a thread to make an interference fit, but dont tell anyone I told you.

Proper torque !

I believe the top thread is finer than the bottom so the coarser thread will have the tendency to loosen first. Since the bottom are only supposed to be put in finger tight the only solution would be loctite (blue).

I've put loctite thread locker on and it looks like it's worked.
Thanks Mick

Quote:

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I believe the top thread is finer than the bottom so the coarser thread will have the tendency to loosen first. Since the bottom are only supposed to be put in finger tight the only solution would be loctite (blue).

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This is the CORRECT answer