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) Make sure the impeller is not deformed or damaged.
4) Check the clearance between impeller and pump case.
Clearance between impeller and pump case: Standard 0.5-1.5 mm (0.020-0.059 inch)
5) After water pump installation, check the pulley shaft for engine coolant leaks. If leaks are noted, replace the water pump assembly.