Read somewhere a tip on checking for leaks. Cut a bicycle tube in half. Attach one end to inlet and other end to outlet. Apply air to valve stem and check for leaks.
Wow – I’m likin’ this tip! Roger gave me a radiator core, I’m going to test it this way before I put it in.
Any recommendations on air pressure? I guess the same pressure you would see in a heater system… 10, 15 lbs?
Dan