RADIATOR ON-VEHICLE INSPECTION

PROCEDURE


  1. CHECK RESERVE TANK CAP (for Engine)


    1. A005CL9

      Measure the valve opening pressure.


      1. If there are water stains or foreign matter on O-ring 1, clean it with water and finger scouring.

      2. Check that O-ring 1 is not deformed, cracked or swollen.

      3. Apply engine coolant to O-ring 1 and rubber packing 2 before using a radiator cap tester.

      4. When using the cap tester, tilt it upwards 30 degrees or more.

      5. A005BFLE24
        Text in Illustration
        *1 Radiator Cap Tester
        *2 Reserve tank Cap
        *a 30° or more

        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)

        94 to 122 kPa (1.0 to 1.2 kgf/cm2, 13.5 to 17 psi)

        Minimum standard value

        (for used cap)

        79 kPa (0.8 kgf/cm2, 11.4 psi)

        If the maximum pressure is less than the minimum standard value, replace the reserve tank cap.