РАДИАТОР > ПРОВЕРКА БЕЗ СНЯТИЯ С АВТОМОБИЛЯ

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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 more than 30°.
      

   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.
      

1. Check that the radiator and condenser are not blocked with leaves, dirt, or insects. Clean the hose connections.
   If the fins are blocked, wash them with water or a steam cleaner.
   

   ПРИМЕЧАНИЕ:

   1. If the distance between the steam cleaner and core is too close, the fins may be damaged.
      
   2. Keep the following injection distance.
      
      

      Standard injection distance:

      
      

      Injection Distance	Injection Pressure
      300 mm (11.81 in.)	2942 to 4903 kPa (30 to 50 kgf/cm2, 427 to 711 psi)
      500 mm (19.69 in.)	4903 to 7845 kPa (50 to 80 kgf/cm2, 711 to 1138 psi)

   3. If the fins are bent, straighten them with a screwdriver or pliers.
      
   4. Never apply water directly into the electric components.
      

2. Dry the fins with compressed air.