From: ZinkZ10C@aol.com
> Take a close look where the fins attach to the tubes. If the fins are
> corroded and falling out, the rad isn't good.
An original TR3 radiator has an unusual construction ... the tubes run through
holes in the fins rather than the fins zig-zagging back and forth between
tubes. Thus the fins can be completely detached from the tubes, meaning little
or no heat transfer, but the fins won't fall out. And it's very hard to see if
the joint is tight or not.
Randall
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