[TR] Radiator Cap Pressure Rating

[Bob Danielson]

While poking through the 6-Pack forums, I saw a post on the impact of
radiator caps and thermostats on cooling the car. I understand the
thermostat impact but what does the radiator cap do cooling wise? It somehow
raises or lowers the boiling point? I checked and my car has a 4 lb cap
while Moss & TRF state that a 13 lb cap is needed for my model year. Does
the 4 lb cap make the car run hotter or cooler?

Thanks
Bob

Bob Danielson
1975 TR6 CF38503U
Running w/ Throttle Body Injection
http://tr6.danielsonfamily.org 


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