Water Pump: Service and Repair

Water Pump Replacement (LF1/LLT)

Special Tools

EN 46104 Water Pump Pulley Holding Tool

Removal Procedure

1. Drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill) (Cooling System Draining and Filling (Static Fill))Cooling System Draining and Filling (GE 47716) (Cooling System Draining and Filling (GE 47716)).
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 (1) in order 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. Install the water pump bolts and tighten to 10 Nm (89 lb in).




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




5. Use the EN 46104 (1) in order to retain the water pump pulley.
6. Install the water pump pulley bolts and tighten to 12 Nm (106 lb in).
7. Install the generator drive belt. Refer to Water Pump and Generator Belt Replacement (Water Pump and Generator Belt Replacement).
8. Fill the cooling system. Refer to Cooling System Draining and Filling (Static Fill) (Cooling System Draining and Filling (Static Fill))Cooling System Draining and Filling (GE 47716) (Cooling System Draining and Filling (GE 47716)).