Radiator Cap: Inspection
- Attach radiator cap to tester.
- Increase pressure until tester gauge pointer stops. Radiator cap is functioning properly if it holds the service limit pressure for five to six seconds.
Standard pressure: 93-123 kPa (0.95-1.25 kg/cm2 , 14-18 psi)
Service limit pressure: 83 kPa (0.85 kg/cm2 , 12 psi)
CAUTION: Be sure to remove foreign matter and rust from the cap in advance otherwise, results of pressure test will be incorrect.