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Home >> Mazda >> 2009 >> B4000 V6-4.0L >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Engine >> Water Pump >> Service and Repair
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Water Pump: Service and Repair



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WATER PUMP REMOVAL / INSTALLATION - 4.0L

1. Disconnect negative battery cable. See Procedures.

2. Drain engine coolant. See - Removal and Replacement.

3. Remove cooling fan blade and clutch. See - Service and Repair.

4. Remove the bolts and position the fan shroud out of the way.

5. Remove the drive belt. See - Service and Repair.

6. Remove the belt idler pulley.






7. Slide the water bypass hose clamp back.






8. Disconnect the heater hose at the water pump.
a. Release the clamp.

b. Remove the hose.






9. Disconnect the lower radiator hose at the water pump.
a. Release the clamp.

b. Remove the hose.






10. Remove the water pump pulley.






11. Remove the water pump.






12. Clean all the sealing surfaces.

13.

CAUTION:Use care when scraping the water pump-to-engine block mating surfaces. Gouges in the aluminum could form leak paths.To install, reverse the removal procedure.

- Fill radiator with specified amount and type of engine coolant and bleed the cooling system. See - Removal and Replacement.

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