Water Pump Replacement LAT

Special Tools

J 43651 Water Pump Holding Tool

1. Remove the thermostat housing. Refer to Engine Coolant Thermostat Housing Replacement.
2. Remove the engine splash shield. Refer to Engine Splash Shield Replacement.
3. Remove the water pump access plate from the front cover.




Note: A drain plug has been provided at the bottom of the water pump assembly for additional coolant drainage from the engine block and water pump.

4. Drain the coolant from the water pump using the plug at the bottom of the pump.




Note: The water pump holding tool supports the sprocket and chain during water pump service. The tool must be used or the balance shaft must be re-timed.

5. Install the J 43651 (1) into position.
6. Tighten the bolts on the water pump holding tool into the threads on the water pump sprocket.
7. Install the access cover bolts that were removed earlier to secure the water pump holding tool to the front cover assembly.
8. Remove the 3 inner water pump sprocket to water pump blots.




Note: Be sure to remove both water pump bolts from the front of the engine block.

9. Remove the 2 water pump bolts.



10. Remove the rear 2 water pump bolts.



11. Remove the water pump.
12. Remove and discard the water pump O-ring seal.

Note: Prior to installing the water pump, read the entire procedure. This will help avoid balance shaft chain re-timing and ensure proper sealing.

1. Install a NEW water pump O-ring seal.

Note: A guide pin can be created to aid in water pump alignment. Use a M6 m x 6 mm stud. Thread the pin into the water pump sprocket.

2. Using the guide pin, align the pin with the water pump holding tool.
3. Position the water pump against the engine block and hand tighten the water pump bolts.

Caution: Refer to Fastener Caution in the Preface section.

4. Install the inner water pump sprocket bolts. After 2 are snug, remove the guide pin and install the 3rd bolt.

Tighten the water pump bolts to 25 N·m (18 lb ft).

5. Tighten the water pump sprocket bolts last to 10 N·m (89 lb in).



6. Remove the J 43651 (1).



7. Install the water pump access plate and bolts and tighten the bolts to 10 N·m (89 lb in).
8. Install the engine splash shield. Refer to Engine Splash Shield Replacement.
9. Install the thermostat housing. Refer to Engine Coolant Thermostat Housing Replacement.

Water Pump Replacement LY7

Special Tools

EN 46104 Water Pump Pulley Holding Tool

1. Drain the cooling system. Refer to Cooling System Draining and Filling.
2. Remove the drive belt. Refer to Drive Belt Replacement.



3. Use the EN 46104 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.

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

Caution: Refer to Fastener Caution in the Preface section.

3. Install the water pump bolts and tighten to 10 N·m (89 lb in.



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



5. Use the EN 46104 in order to retain the water pump pulley.
6. Install the water pump pulley bolts and tighten to 10 N·m (89 lb in).
7. Install the drive belt. Refer to Drive Belt Replacement.
8. Fill the cooling system. Refer to Cooling System Draining and Filling.