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 coolant escaping from the radiator.

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.

1mREMOVAL
1. Drain engine coolant from the radiator. Refer to Service and Repair.

CAUTION:
Perform when the engine is cold.
2. Remove drive belt. Refer to Service and Repair.
3. Remove engine cover using power tools.
4. Remove generator. Refer to Removal and Replacement.
5. Remove RH wheel and tire assembly. Refer to Service and Repair.
6. Remove fender protector RH. Refer to Coupe (Coupe models) or Sedan (Sedan models).
7. Remove engine ground strap.
8. Remove the water pump.

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. Refer to 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 neutral detergent to O-ring. Then insert it immediately.

Inspection AFTER INSTALLATION
- After installation refill engine coolant and check for leaks. Refer to Service and Repair and Testing and Inspection.