In Reply to: radiator leak posted by larry from ohio on July 02, 2020 at 07:30:01:
I use a cut bicycle tube attached to the inlet and outlet to enable a quick check on my solder patch. Add a pound or two of air and spray the repair with soapy water. Bubbles show the patch isn't finished.
Cartridge cases are another cheap source of small bits of brass sheet to patch with.