Chevrolet C8 1940 Cab 11 restoration, The Netherlands

[Bob Carriere]

I guess Spring as arrived !!!!!!

Glad Brian was bale to provide the NOS cap...... you could test if you wish....garage usually have a machine the fits on the rad opening and the hand pump up to 10 to 15 pounds and look for leaks......A real pressure test requries removing the rad....plugging all openings except the one for the tire valve fitting and using a compressor to load the rad..... then the hwole thing is submerged in a (usually vry filthy) water tank and you look for bubbles to pin point the air leak.

For our purpose...... if you cap is on tight and after running hot for 30 minutes it does not leak....you're good for the road. If I used a hand pump I would not test any higher than 2 or 3 pounds of pressure.

Like a 6 cyl. flat head Dodge engine a Chev can be driven for a long time with the rad cap missing and will not boil over......

Bob