Diesel Data: Automotive Repair

Radiator Cap: Testing and Inspection





OPENING PRESSURE CHECK
1. Use a cap adapter to attach the radiator cap to the tester.
2. Increase the pressure until the indicator of the gauge stops moving.
Standard value: 94 - 122 kPa (14 - 18 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.