use 50-50 acid flux solder on radiators, but if you have tubes leaking at the tank joint it needs to be redone properly or you'll be patching it the rest of yer life .... take it to a shop, they'll redo both tanks properly

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics