Originally Posted by
SRV1
Hi Weasle,
Before unscrewing the trigger block, I make a small scribe mark cylinder to block position (on the underside where it is not seen!). Yes, the block can be difficult to unscrew, but, a bit of heat on the cylinder applied quickly before the alloy has a chance to expand somewhat has worked for me. The heat does not damage the bluing. A thin walled socket is needed to get onto that hex nut to adjust alignment. Fortunately mine have gone back into position without excessive tightening force. For one of them, it got far too tight for aligning, I cheated, carefully filing square, a smidgen off the end of the cylinder!!! I'm talking of two or three passes with a fine wide flat file. I copper coat the threads on re-assembly.
All the best to all......