[TR] Radiator Cap Pressure Rating

[Aldwyn]

Bob,

The more pressure in the cooling system, the higher the boiling point for 
the coolant is.... so the 13 pound cap is your better bet for the 6 since 
your coolant would not boil as easily under that pressure.

Maybe the PO had some issues with the radiator or hoses leaking with the 
higher pound cap, so he/she went to the 4 pound?  Keep an eye on your 
system once you switch over!

- Aldwyn






At 08:37 PM 8/13/2007, Bob Danielson wrote:
>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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