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Pressure, Vacuum and Temperature Specifications

Radiator cap Opening pressure Standard or new 93 - 123 kPa
Thermostat Opening temperature Begins to open Standard or new 169 - 176 deg F
Fully open Standard or new 194 deg F
Radiator fan switch Thermoswitch "ON" temperature Standard or new 196 - 203 deg F
Thermoswitch "OFF" temperature Standard or new Subtract 5 - 15 deg F from actual "ON" temperature