you have to take it down to bare metal, cleaned to a shine,flux, and then re braze the joint,
clamping it till the brazing material cools.
If you have tools to do brazing, you wouldn't consider glue.
if not oxy-acetylene ,then at least oxy-mapp , gas torch for heat.
Last edited by fietsbob; 09-19-10 at 01:56 PM.