RADIATOR ON-VEHICLE INSPECTION


  1. CHECK RADIATOR CAP SUB-ASSEMBLY


    1. A01FH12

      Measure the valve opening pressure.


      1. If there are water stains or foreign matter on rubber packing 1, 2 or 3, clean the part(s) with water and finger scouring.

      2. Check that rubber packing 1, 2 or 3 is not deformed, cracked or swollen.

      3. Check that rubber packings 3 and 4 are not stuck together.

      4. Apply engine coolant to rubber packings 2 and 3 before using the radiator cap tester.

      5. A01FGJ2E27
        Text in Illustration
        *1 Radiator Cap Tester
        *2 Radiator Cap
        *a 30° or more

        When using the cap tester, tilt it 30° or more.

      6. Pump the cap tester several times, and check the maximum pressure*1.

        Pumping speed
        1 pump per second

        Tech Tips

        *1: Even if the cap cannot maintain the maximum pressure, it is not a defect.

        Judgment Criterion
        Item Specified Condition

        Standard value

        (for brand-new cap)

        93 to 123 kPa (1.0 to 1.3 kgf/cm2, 13.5 to 18 psi)

        Minimum standard value

        (for used cap)

        78.5 kPa (0.8 kgf/cm2, 11.4 psi)

        If the maximum pressure is less than the minimum standard value, replace the radiator cap sub-assembly.