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Pressure Cap Testing

Pressure Cap Testing



Special Tools

• GE-24460-A Cooling System Pressure Tester

• GE-42401-A Radiator Cap/Surge Tank Test Adapter Kit


For equivalent regional tools, refer to Special Tools

Pressure Cap Testing


1.
Warning

Do not remove the radiator cap or surge tank cap when the engine is hot. Risk of scalding. The cooling system will release scalding fluid and steam under pressure if radiator cap or surge tank cap is removed while the engine and radiator are still hot.


Remove the pressure cap.

2. Wash the pressure cap sealing surface with water.

3. Use the GE-24460-01 , Cooling System Pressure Tester (1) with GE-42401-A , Radiator Cap/Surge Tank Test Adapter Kit (2) in order to test the pressure cap.


4. Test the pressure cap for the following conditions:

• Pressure release when the GE-24460-01 Cooling System Pressure Tester exceeds the pressure rating of the pressure cap.

• Maintain the rated pressure for at least 10 seconds.

Note the rate of pressure loss.

5. Replace the pressure cap under the following conditions:

• The pressure cap does not release pressure which exceeds the rated pressure of the cap.

• The pressure cap does not hold the rated pressure.