Water Pump: Service and Repair

Coolant Pump

Service Repair No - 26.50.01

Removal
1. Drain cooling system.
2. Loosen coolant pump pulley bolts.
3. Release auxiliary drive belt tension by turning tensioner clockwise.
4. With tension released, remove belt from alternator pulley.
5. Remove drive belt.

NOTE: If belt is to be refitted, mark direction of rotation.

6. Remove bolts securing coolant pump pulley.
7. Remove coolant pump pulley.





8. Noting their fitted positions, remove 9 bolts securing coolant pump.
9. Remove coolant pump.
10. Remove gasket.





Installation
11. Clean coolant pump and timing cover mating faces.
12. Lightly grease new gasket and position to timing cover.
13. Clean threads of all long bolts and coat with Loctite 572 thread sealant.
14. Position coolant pump, fit bolts and tighten to 28 Nm (21 ft. lbs.).
15. Fit (install) coolant pump pulley, fit bolts, but do not tighten.
16. Clean auxiliary drive belt pulley grooves and inspect for damage.
17. Fit belt to pulleys.
18. Turn drive belt tensioner clockwise and engage belt on alternator pulley.
19. Release drive belt tensioner.
20. Tighten coolant pump pulley bolts.
21. Refill cooling system.