Cooling System Cap Inspection
WARNING:
- Never remove the cooling system cap while the engine is running, or when the engine and radiator are hot. Scalding coolant and steam may shoot out and cause serious injury. It may also damage the engine and cooling system.
- Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap. Wrap a thick cloth around it and slowly turn it counterclockwise 2.5 turns. Step back while the pressure escapes.
- When you're sure all the pressure is gone, turn the cap using the cloth, and remove it.
- Attach the cooling system cap to a radiator cap tester with the SST . Apply pressure gradually.
- Verify that the pressure becomes held within the specification.
- If the pressure is held for 10 s, the cooling system cap is normal.
Pressure
94-122 kPa
{0.95-1.25 kfg/cm 2 , 13.6-17.7 psi}