RADIATOR ON-VEHICLE INSPECTION

PROCEDURE


  1. INSPECT WATER FILLER CAP SUB-ASSEMBLY


    1. B0046XRC04
      *a Rubber Packing (1)
      *b Rubber Packing (2)
      *c Rubber Packing (3)
      *d Valve Seat

      Visually check the water filler cap sub-assembly.


      1. If there are water stains or foreign matter on the rubber packings (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 packing (3) and valve seat are not stuck together.

    2. Measure the valve opening pressure.


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

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

      3. B0047D2C04
        *1 Water Filler 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
        Result
        Item Specified Condition

        Standard pressure

        (for brand-new water filler cap sub-assembly)

        93.3 to 122.7 kPa (1.0 to 1.3 kgf/cm2, 13.5 to 17.8 psi)

        Minimum pressure

        (for used water filler cap sub-assembly)

        78.5 kPa (0.8 kgf/cm2, 11.4 psi)

        If the maximum pressure is less than the specified pressure for the minimum pressure, replace the water filler cap sub-assembly.