I have recently aquired a frame that has a split in the bottom of the head tube The split has cracked the bottom lug and about 1/2" of the tube.It looks like someone has placed a bar inside the head tube to increase leverage whilst removing a stubbon seatpost
I thought that I would try to salvage the frame which is quite a nice one by brazing a new piece of tube inside the existing head tube to reinforce the split which i shall also braze .
I am torn between inserting the new section of tube for the full height of the existing head tube and then turning down the two headset cups so that they fit within the slightly reduced head tube internal diameter or:-
Braize the new tube to the bottom headset cup first (steel cups)and then braize both inside the existing headtube.
Naturally either option will mean that the frame will have a limited lifetime of the life of the headset bearing surfaces but i'd be hapy to get a year out of the frame rather than throw it away.
Has anyone by chance got a 2" length of silver solder by any chance ? I guess jewelers use it.
I thought that I would try to salvage the frame which is quite a nice one by brazing a new piece of tube inside the existing head tube to reinforce the split which i shall also braze .
I am torn between inserting the new section of tube for the full height of the existing head tube and then turning down the two headset cups so that they fit within the slightly reduced head tube internal diameter or:-
Braize the new tube to the bottom headset cup first (steel cups)and then braize both inside the existing headtube.
Naturally either option will mean that the frame will have a limited lifetime of the life of the headset bearing surfaces but i'd be hapy to get a year out of the frame rather than throw it away.
Has anyone by chance got a 2" length of silver solder by any chance ? I guess jewelers use it.