9-2X F4-2.0L Turbo (2005)
Water Pump: Testing and Inspection
Water Pump
Inspection
1. Check the water pump bearing for smooth rotation.
2. Check the water pump pulley for abnormalities.
3. Using a dial gauge, measure the impeller runout in thrust direction while rotating the pulley.
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"Thrust" runout limit: 0.5 mm (0.020 inch)
4. Check the clearance between impeller and pump case.
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Clearance between impeller and pump case:
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Standard 0.5 - 0.7 mm (0.020 - 0.028 inch)
5.
After water pump installation, check the pulley shaft for engine coolant leaks. If leaks are noted, replace the water pump assembly.
