Radiator: Testing and Inspection

1AR-FE COOLING: RADIATOR: ON-VEHICLE INSPECTION

1. CHECK RADIATOR CAP SUB-ASSEMBLY

(a) Measure the valve opening pressure.





(1) If there are water stains or foreign matter on rubber packings 1, 2 or 3, clean the part(s) with water and finger scouring.

(2) Check that rubber packings 1, 2 and 3 are not deformed, cracked or swollen.

(3) Check that 3 and 4 are not stuck together.

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

(5) When using the cap tester, tilt it to 30° or more above level.





(6) Pump the cap tester several times, and check the maximum pressure*.

Pump speed:

1 pump per second

(7) *: Even if the cap cannot maintain the maximum pressure, it is not a defect.

Judgment Criterion:





(8) If the measured maximum pressure is less than the minimum standard value, replace the radiator cap sub-assembly.