Posted by Northern Calif Dave on Thursday, February 23, 2006 at 12:19PM :
I believe on the newer models (late 50's onwards) the radiator was pressurized, although I may be wrong.
Was a '48 B-1 coolant system pressurized? If so to what pressure? What is the benefit/need of running it pressurized? What happens if you don't pressurize a pressurized system?
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