Originally Posted by
HillRider
I have heard of having a frame maker melt brazing brass into the damaged threads and then recut the threads using the proper threading die.
That was my first thought... the brass threads should last longer, too.
Originally Posted by
CaptainCool
Suddenly it started loosening up while I ride. Tightening the top nut just hits the stop, even after I added two spacers to the stack.
...
Could I add another threaded nut / old top race to the stack, to lock against the top nut like the current top race is supposed to?
It's not the top nut that needs to be locked; it's the cup. Looking at that pic, it's no wonder the cup comes loose; you can't tighten it in the first place. If your LBS has an appropriate die and you have access to an oxy set, I recommend the above suggestion.
Originally Posted by
DieselDan
I hope that is just a paint crack on the weld at the top tube/head tube joint on Capt. Cool's frame.
Yeah, that's a bit disconcerting... bears investigation.