I can't think of any thing else to do??.... The spring will still have a few degrees of movement, probably so dry it is spring bound... If NOTHING moves, I would toss the whole drum into a bowl of oil and let it soak??... it would need to be un-locked, then disassembled and re-greased ...... If you want me to work on it, I can, and will?.... drop me a note at:
gctomeks@msn.com haven't had any complaints yet!.....

... best to all, til...lat'r....GT....