Radiator Cap: Testing and Inspection

RADIATOR CAP VALVE OPENING PRESSURE CHECK





1. Use a cap adapter to attach the cap to the tester.
2. Increase the pressure until the indicator of the gauge stops moving.

Standard value: 75 - 105 kPa (11 - 15 psi)
Limit: 65 kPa (9.2 psi)

3. Replace the radiator cap if the reading does not remain at or above the limit.

NOTE:
Be sure that the radiator cap is clean before testing, since rust or other foreign material on the radiator cap seal may cause an improper reading,