1. Attach the radiator cap to radiator cap tester.
2. Increase pressure until the tester gauge pointer stops. Radiator cap is functioning properly if it holds the service limit pressure for 5 — 6 seconds. Replace the cap if it is opened under a pressure less than the service limit value.
Radiator side
Standard:
93 — 123 kPa (0.95 — 1.25 kgf/cm2, 14 — 18 psi)
Service limit:
83 kPa (0.85 kgf/cm2, 12 psi)
CAUTION:
Be sure to remove foreign matter and rust from the radiator cap in advance. Otherwise, results of pressure test will be incorrect.