[DougD]

Originally Posted by dlotz

Ok

What are you guys using for your expansion tank fill caps? I have an early T-Bird tank (rad inlet and fill port on the passenger side) and ordered this cap from Obsolete ford parts:

http://www.classicautopartsgroup.com...=S08-14060-110

They said this is what is used for the expansion tank for my tank.

But, low and behold, after waiting 2 weeks for a back order to be delivered. It leaks!

$24 cap and it leaks. The box says made in USA by www.amkproducts.com part number ARC-62C with the reference of 1961-66 chrome radiator cap 1962-66 Fairlane, 1962-66 Ford C2SZ-8100-A

Yes/No?

I've had problems with the quality of AMK parts over the years. Starter solenoids have been particularly dodgy. I'd buy a cheapo parts store cap to test and see if it's the cap or the coolant tank. If it's the cap, send it back for a replacement. JMHO.