Water Pump: Service and Repair

WATER PUMP

CAUTION:
- When removing water pump assembly, be careful not to get coolant on drive belt.
- Water pump cannot be disassembled and should be replaced as a unit.
- After installing water pump, connect hose and clamp securely, then check for leaks using radiator cap tester.

REMOVAL





1. Drain coolant from drain cocks on both sides of cylinder block and radiator.
2. Loosen drive belts.





3. Remove fan coupling with fan.
4. Remove idler pulley bracket and drive belt.
5. Remove water pump.

INSPECTION
1. Check for badly rusted or corroded vanes and body assembly.





2. Check for rough operation due to excessive end play.

INSTALLATION
1. Use a scraper to remove old liquid gasket from water pump.
- Also remove traces of liquid gasket from mating surface of cylinder block.





2. Apply a continuous bead of liquid gasket to mating surface of water pump.
- Use Genuine RTV silicone sealant part No. 999 MP-A7007 or equivalent.