Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

I can say the one my brother took out from the top boiler just came fell out when heating it up.  I am not sure what he used to heat things up but I know he has both a large iron and small torch.  Seeing he got his out without melting it, I am guessing the large iron.  Then he used the torch to put in the brass thread to be able to screw in the replacements.  Which are spot on to the sight glass fitting on @Gregowen #34.

This is the new ones right after he installed them (the brass line it to keep things straight as it was mounting things down).