RADIATOR ON-VEHICLE INSPECTION

PROCEDURE


  1. CHECK RADIATOR CAP SUB-ASSEMBLY


    1. B003U6ZN07

      Measure the valve opening pressure.


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

      2. Check that the rubber packings (1), (2) and (3) are not deformed, cracked or swollen.

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

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

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

      6. B003WWMC11
        *1 Radiator Cap Sub-assembly
        *a Radiator Cap Tester
        *b 30° or more

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

        Pumping Speed
        1 pump per second

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

        Judgment Criteria
        Item Specified Condition

        Standard value

        (for brand-new cap)

        93 to 123 kPa (0.9 to 1.3 kgf/cm2, 13.5 to 18.0 psi)

        Minimum standard value

        (for used cap)

        79 kPa (0.8 kgf/cm2, 11.5 psi)

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