Hy Joiner Transit, an excellent radiator repair man once told me "If you bring me a radiator which is old and not damaged but leaking from the core or core tank connection, I'll try to repair it for up to an hour, if I do get it to stop leaking, I will not guarantee it." I asked him why, he said "If it is not damaged but leaking, the core is rotten and leaks can occur anywhere at anytime."
