Hoping this is not a repeat - if it is, apologies up front.
I have two Lee 6-cavity moulds, and on both, the alignment pins do not stay put - they migrate out into the face of the mould so that the mould does not close completely. I have reseated them many, many, many times to my chagrin they keep moving.
I have 'staked' them, but over a short period of time the steel pins move the softer aluminum and the pins drift again.
I have tried high-temp/permanent lock-tite. But the 800 degree temps I use for moulding seem to affect the LT ability to 'lock'.
Help appreciated - any ideas?
Very frustrating to have to stop every other 'pour' to push the pins back into place.