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Thermostat: Testing and Inspection

Test pressurization

Special tools:

998 5496 ENGINE COOLANT SYSTEM - PRESSURE TESTER See: Tools and Equipment/998 5496 Engine Coolant System - Pressure Tester 

Cooling system test pressurization

Use pressure tester 998 5496 ENGINE COOLANT SYSTEM - PRESSURE TESTER See: Tools and Equipment/998 5496 Engine Coolant System -
Pressure Tester.
Connect the tester to the expansion tank cover.
Pump up the pressure and check for leaks.

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the pressure must be 150 kPa

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the pressure in the system must be stable.

Note! Allow the pressure to stabilize for a few minutes.

Engine, Cooling and Exhaust > Cooling System > Thermostat, Engine Cooling > Component Information > Specifications > Page 3704

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