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Old 07-05-2020, 01:32 PM   #27
30 Closed Cab PU
Senior Member
Join Date: Aug 2018
Location: Wisconsin
Posts: 2,331
Default Re: Radiator Overheating

Originally Posted by saxman657 View Post
I like the idea of the block tester. When momma lets me get a high compression head I'll be replacing the gasket anyway But this tester will work on a Model A even though it isn't a closed system?

Yes, the test actually draws in the air in the top of the radiator through a test liquid in the tube, and detects for exhaust gasses.

If the test passes, you can pour the liquid back into the bottle. From what I remember, the kit will do quite few tests even if you do not reuse the liquid. I used it once, then donated it to a Club I am in.

The liquid does have a shelf life of a few years, and should not be stored in an unheated garage/area.

Another option is to call your local mechanics/radiator shop and see if they can test. May cost a little more - who knows.
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