Originally Posted by
flyrodr
Can't remember who suggested this to me; seems it was John Harrison relative to 1911 grip screw bushings. He said while heat worked on Loctite, that it was better (less potential for damage outside of the target area) if the heat was focused on the offending screw/bushing. He said try one of the pencil micro-flame butane-fueled torches, focused on only the stuck screw. Alternatively, but less effective, was to use a soldering gun. Not the low powered soldering irons, but the more potent soldering guns. Hold the tip right on the stuck bushing/screw, and it should loosen up. Have tried both. The micro-torch is quicker ("better"?), but the less potent soldering gun offers a possibly less impacting alternative to the torch.
Both both work, at least on Loctite-held screws/bushings.