Water Pump: Service and Repair

WATER PUMP


Removal and Installation












WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure engine coolant escaping from the radiator. Wrap a thick cloth around the cap. Slowly turn it a quarter of a turn to release built-up pressure. Carefully remove radiator cap by turning it all the way.

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 engine coolant from the radiator. Changing Engine Coolant.

CAUTION:
Perform when the engine is cold.
2. Remove front air duct. Service and Repair.
3. Remove RH wheel and tire assembly. Adjustment.
4. Remove generator and generator bracket. Service and Repair.
5. Remove the water pump and water pump gasket.

CAUTION:
- Handle the water pump vane so that it does not contact any other parts.
- Water pump cannot be disassembled and should be replaced as an assembly.

NOTE:
If it is necessary to remove the water pipe, the exhaust manifold and three way catalyst assembly must be removed. Service and Repair.

INSPECTION AFTER REMOVAL





- Visually check that there is no significant dirt or rusting on the water pump body and vane.
- Check that there is no looseness in the vane shaft, and that it turns smoothly when rotated by hand.
- If the water pump does not perform properly, replace the water pump assembly.

INSTALLATION
Installation is in the reverse order of removal.
- When inserting water pipe end to cylinder block, apply a mild soap to O-ring. Then insert it immediately.

INSPECTION AFTER INSTALLATION
- After installation refill engine coolant and check for leaks. Changing Engine Coolant and Inspection.