Water Pump: Service and Repair

Water Pump Replacement (LP1, LY7)

Tools Required

EN 46104 Water Pump Pulley Holding Tool

Removal Procedure

1. Drain the cooling system. Refer to Draining and Filling Cooling System (GE 47716) Draining and Filling Cooling System (LP1, LY7 Static Fill) Draining and Filling Cooling System (LS2 Static Fill).
2. Remove the generator and water pump drive belt.




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.

Notice: Refer to Fastener Notice.

3. Install the water pump bolts.

Tighten the water pump bolts to 10 N.m (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.

Tighten the water pump pulley bolts to 12 N.m (106 lb in).

7. Install the generator and water pump drive belt.
8. Fill the cooling system. Refer to Draining and Filling Cooling System (GE 47716) Draining and Filling Cooling System (LP1, LY7 Static Fill) Draining and Filling Cooling System (LS2 Static Fill).