RADIATOR > ON-VEHICLE INSPECTION

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1. CHECK RESERVE TANK CAP (for Engine)


    A112200

  1. 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. A249860E01

    5. Pump the cap tester several times, and check the maximum pressure*1.
      Text in Illustration 
      *1
      		Radiator Cap Tester
      *2
      		Reserve Tank Cap
      *a
      		30° or more

      Pumping speed:
      1 pump per second

      HINT:
      *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.