Diesel Data: Automotive Repair

Water Pump: Testing and Inspection

Water Pump Inspection

1. Loosen the water pump pulley bolts.
2. Remove the drive belt.
3. Remove the water pump pulley.





4. Turn the water pump pulley counterclockwise, and make sure it turns freely. If it doesn't, replace the water pump.

NOTE: When you check the water pump pulley, you may see a small amount of "weeping" from the bleed holes (A). This is normal.