RADIATOR > ON-VEHICLE INSPECTION

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1. CHECK RADIATOR RESERVOIR CAP SUB-ASSEMBLY


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 the radiator cap tester.



      4. A110393E01

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

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

      Pump speed:
      1 pump per second

      *: 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)
      		93.3 to 122.7 kPa (0.95 to 1.25 kgf*cm2, 13.5 to 17.8 psi)
      Minimum standard value
      (after using 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 reservoir cap sub-assembly.