Coolant pump

Removal

PROCEDURE

1. Disconnect the battery ground cable.

2. Drain the engine coolant.

3. Remove all drive belts.

4. Hold the water pump pulley by wrapping it with an old belt, unscrew the bolts and remove the pulley.

5. Unscrew the thermostat housing and carefully move it aside without damaging the wiring. If necessary, disconnect the hoses and wires.

6. Unscrew the bolts and remove the pump, carefully tapping or rocking it to break the seal.

Inspection

PROCEDURE

1. Check the condition of the housing and impeller, the radial and axial play of the pump shaft, and the free rotation of the impeller.

2. The pump is not serviceable and must be replaced as a complete unit.

Installation

PROCEDURE

1. Clean the pump, the cylinder block mating surface, and the thermostat housing.

2. Apply sealant to the pump mating surfaces (left – pump to cylinder block, right – pump to thermostat housing).

3. Install the pump and tighten the bolts to the specified torque.

4. Apply locking compound to the threads of the two lower bolts.

5. Install the pulley and tighten the bolts to the specified torque.

6. Apply sealant to the mating surface of the thermostat housing.

7. Install the thermostat on the pump and tighten the bolts to the specified torque.

8. Install the drive belts and adjust the tension.

9. Fill with coolant.

10. Connect the battery ground cable.