If I am reading the manual correctly the radiator pressure cap should be set at 4psi, per the 1954 shop manual page 6-78. I cant put my finger on it but somewhere I remember reading it's safe to test the radiator and the fresh air heater core to 10psi. In SW Florida I will be running a 180 degree stat. Just checking to see if the test pressure is correct for both.

Thanks Shade Baby


1950 Model 3104 5-Window
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