RADIATOR > ON-VEHICLE INSPECTION |
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1. CHECK WATER FILLER CAP SUB-ASSEMBLY |
Measure the valve opening pressure.
If there are water stains or foreign matter on rubber packings 1, 2 or 3, clean the part(s) with water and finger scouring.
Check that rubber packings 1, 2 and 3 are not deformed, cracked or swollen.
Check that 3 and 4 are not stuck together.
Apply engine coolant to rubber packings 2 and 3 before using the radiator cap tester.
When using the cap tester, tilt it upward 30° or more.
Pump the cap tester several times, and check the maximum pressure *1.
Text in Illustration *1 Radiator Cap Tester *2 Water Filler Cap Sub-assembly *a 30° or more - Pumping speed:
- 1 pump every second
- Judgment Criterion:
Item Specified Condition Standard value
(for brand-new cap)93.3 to 122.7 kPa (0.95 to 1.25 kgf/cm2, 13.5 to 17.8 psi) Minimum standard value
(for used cap)78.5 kPa (0.8 kgf/cm2, 11.4 psi)