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Water Pump: Service and Repair


Gasket - Coolant Pump

Service Repair No - 26.50.02

Before disconnecting the battery, ensure all text and cautions in the battery disconnection section are observed.


Remove
1. Position vehicle on lift.
2. Disconnect battery earth lead.
3. Remove thermostat.
4. Remove viscous fan.
5. Remove ancillary drive belt.





6. Release clips and disconnect radiator top hose from coolant pump and alternator.





7. Remove Allen bolt securing Secondary Air Injection (SAI) pipe clip to coolant pump.





8. Remove bolt securing SAI pipe to LH cylinder head.





9. Remove bolt securing SAI pipe to RH cylinder head.
10. Release SAI pipe from cylinder heads and position aside. Discard '0' rings.





11. Using LRT-12-215 to hold coolant pump pulley, loosen 4 bolts securing coolant pump pulley.
12. Remove 4 bolts securing coolant pump pulley and remove pulley.





13. Disconnect ECT sensor multiplug.





14. Remove 6 bolts securing coolant pump to cylinder block and remove coolant pump.

NOTE: Do not allow the coolant pipes to be released from the coolant manifold during the removal of the coolant pump. If the coolant pipes are released from the coolant manifold the 'O' rings must be replaced.

15. Remove and discard 2 'O' rings from coolant pump.
16. Clean gasket mating faces.

NOTE: Do not carry out further dismantling if component is removed for access only.

17. Remove ECT sensor and discard sealing washer.

Refit
1. Using new sealing washer, fit ECT sensor and tighten to 14 Nm (11 ft. lbs.).
2. Lubricate new 'O' rings and fit to sealing groves in coolant pump.
3. Fit a new gasket and coolant pump to engine. Tighten bolts to 10 Nm (7 ft. lbs.).
4. Connect ECT sensor multiplug.
5. Ensure mating faces of coolant pump pulley and flange are clean. Fit pulley and finger tighten securing bolts.
6. Using LRT-12-215 to hold coolant pump pulley, tighten the bolts securing coolant pump pulley to 10 Nm (7 ft. lbs.).
7. Lubricate new 'O' rings and fit to secondary air injection pipe. Fit secondary air injection pipe and tighten securing bolts to 10 Nm (7 ft. lbs.).
8. Connect coolant hose to coolant pump and alternator.
9. Fit ancillary drive belt.
10. Fit thermostat.
11. Fit viscous fan.
12. Connect battery earth lead.
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