Water Pump: Service and Repair

Water Pump Replacement

Special Tools

EN 46104 - Water Pump Pulley Holding Tool

For equivalent regional tools, refer to Special Tools (Tools and Equipment).

Removal Procedure

1. Drain the cooling system. Refer to Cooling System Draining and Filling (GE 47716) (Cooling System Draining and Filling (GE 47716))Cooling System Draining and Filling (Static Fill) (Cooling System Draining and Filling (Static Fill)).
2. Remove the generator drive belt. Refer to Water Pump and Generator Belt Replacement (Water Pump and Generator Belt Replacement).




3. Use the EN 46104 - holding tool to retain the water pump pulley.




4. Remove the water pump pulley bolts.
5. Remove the water pump pulley.




6. Remove the water pump bolts.
7. Remove the water pump.
8. Remove and DISCARD the water pump seal.
9. Carefully clean the water pump sealing surfaces.

Installation Procedure




1. Install a NEW water pump seal.
2. Install the water pump.

Caution: Refer to Fastener Caution (Fastener Caution).

3. Hand tighten the water pump bolts.




4. Tighten the water pump bolts in sequence to 12 Nm (106 lb in).

5. Tighten the water pump bolts a second pass in sequence to 12 Nm (106 lb in).




6. Install the water pump pulley and the water pump pulley bolts.




7. Use the EN 46104 - holding tool to retain the water pump pulley.
8. Install the water pump pulley bolts and tighten to 12 Nm (106 lb in).
9. Install the generator drive belt. Refer to Water Pump and Generator Belt Replacement (Water Pump and Generator Belt Replacement).
10. Fill the cooling system. Refer to Cooling System Draining and Filling (GE 47716) (Cooling System Draining and Filling (GE 47716))Cooling System Draining and Filling (Static Fill) (Cooling System Draining and Filling (Static Fill)).