I had to fix a Lewmar Cheek/Deck/Foot Block for a Moody 37 that had spent 35 years in the Med, so the plastic of the sheave had pretty much disintegrated. I checked out a couple of posts on websites that gave an idea how to proceed, but didn’t really provide enough details to know exactly how to proceed, so I though a You Tube video was in order. The basic problem is getting the pivot pin out as its been heavily swaged underneath – and the key thing is knowing the core diameter of the pivot pin. Anyway you can find the video at:
Jul 032022