REFLECTOR: Temp vs Press

Sid Knox sbjknox at earthlink.net
Sun Feb 6 22:18:21 CST 2005


from the internet... FWIW...



"The radiator cap pressure valve consists of a spring-loaded disc that contacts the filler neck. The spring pushes the valve into the neck to form a seal. Under pressure, the boiling point of water increases. Normally water boils at 212°F. However, for every pound of pressure increase, the boiling point goes up 3°F.

Typical radiator cap pressure is 12 to 16 psi. This raises the boiling point of the engine coolant to about 250°F to 260°F. Many surfaces inside the water jackets can be above 212°F."

Sid K
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