Is that metal shavings I see inside of the blower housing and at the base of the LIM?
Back when I hand built amplifiers, I used one of those soldering irons that looked like the pencil type on steriods, and for the connection to the 1/0 wire, a standard propane torch like used for plumbing jobs.
btw I was searching some of the forums I belong to, for the step by step on tearing apart the alternator that I've seen. For those that mess up theirs, have a bad one that needs replacing etc. A place called Afterthoughts does chromed 160 amp alternators or powdercoating if that is what you chose. Ill go back and see if I can find the thread, since it had a picture of the chromed one on a wbody.