Water Pump Replacement L61/LE5
Special Tools
J 43651
Water Pump Holding Tool
Removal Procedure
- Remove the thermostat housing. Refer to
Engine Coolant Thermostat Housing Replacement
.
- Remove the water pump access plate from the front cover.
- Remove the right hand fender liner. Refer to
Front Fender Liner Replacement
.
Important: 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.
- Drain the coolant from the water pump using the plug at the bottom of the pump.
Important: 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.
- Install the
J 43651
into position.
- Tighten the bolts on the water pump holding tool into the threads on the water pump sprocket.
- Install the access cover bolts that were removed earlier to secure the water pump holding tool to the front cover assembly.
- Remove the 3 inner water pump sprocket to water pump blots.
Important: Be sure to remove both water pump bolts from the front of the engine block.
- Remove the 2 water pump bolts.
- Remove the rear 2 water pump bolts.
- Remove the water pump.
- Remove and discard the water pump O-ring seal.
Installation Procedure
Important: Prior to installing the water pump, read the entire procedure. This will help avoid balance shaft chain re-timing and ensure proper sealing.
- Install a NEW water pump O-ring seal.
Important: 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.
- Using the guide pin, align the pin with the water pump holding tool.
- Position the water pump against the engine block and hand tighten the water pump bolts.
Notice: Refer to Fastener Notice in the Preface section.
- Install the inner water pump sprocket bolts. After 2 are snug, remove the guide pin and install the 3rd bolt.
Tighten
Tighten the water pump bolts to 25 N·m (18 lb ft).
- Tighten the water pump sprocket bolts last.
Tighten
Tighten the water pump sprocket bolts to 10 N·m (89 lb in).
- Remove the
J 43651
.
- Install the water pump access plate and bolts.
Tighten
Tighten the bolts to 10 N·m (89 lb in).
- Install the right hand fender liner. Refer to
Front Fender Liner Replacement
.
- Install the thermostat housing. Refer to
Engine Coolant Thermostat Housing Replacement
.
Water Pump Replacement LNF
Special Tools
J 43651
Water Pump Holding Tool
Removal Procedure
- Raise and Support the vehicle. Refer to
Lifting and Jacking the Vehicle.
- Remove the right engine splash shield. refer to
Engine Splash Shield Replacement - Right Side.
- Remove the bolts (1) retaining the water pump access plate (2) and remove the plate from the front cover (3). Discard
the seal.
- Drain the coolant from the water pump using the plug at the bottom of the pump. Refer to
Cooling System Draining and Filling.
- Remove the thermostat housing. Refer to
Engine Coolant Thermostat Housing Replacement.
- Remove the radiator outlet pipe from the rear of the water pump and the thermostat
housing by gently twisting.
Important: The water pump holding tool supports the sprocket and chain during water pump service. The tool must be used or the balance shaft will have to be re-timed.
- Install the
J 43651
(1) into position.
- Tighten the bolts on the water pump holding tool (2) into the threads on the water pump sprocket.
- Install the access cover bolts that were removed earlier to secure the water pump holding tool to the front cover assembly.
- Remove the three inner water pump sprocket to water pump bolts.
Important: Be sure to remove both front water pump bolts from the front of the engine block.
- Remove the two front water pump bolts.
- Remove the two rear water pump bolts.
- Remove the water pump.
- Remove and discard the water pump O-ring seal.
Installation Procedure
Important: Prior to installing the water pump, read the entire procedure. This will help avoid balance shaft chain re-timing and ensure proper sealing.
- Install a NEW water pump O-ring seal.
Important: A guide pin can be created to aid in water pump alignment. Use a M 6 m x 6 mm stud. Thread the pin into the water pump sprocket.
- Using the guide pin, align the pin with the water pump holding tool.
- Position the water pump against the engine block and hand tighten the front and rear water pump bolts.
Notice: Refer to Fastener Notice in the Preface section.
- Install the inner water pump sprocket bolts. After two bolts are snug, remove the guide pin and install the 3rd bolt.
Tighten
- Tighten the front and rear water pump bolts to 25 N·m (18 lb ft).
- Tighten the water pump sprocket bolts to 10 N·m (89 lb in).
- Remove the
J 43651
(1).
- Install the water pump access plate and bolts, with a NEW seal.
Tighten
Tighten the bolts to 10 N·m (89 lb in).
- Install the radiator outlet pipe to the rear of the water pump and the thermostat
housing using new O rings.
- Install the thermostat housing. Refer to
Engine Coolant Thermostat Housing Replacement.
- Install the right engine splash shield. refer to
Engine Splash Shield Replacement - Right Side.
- Lower the vehicle.
- Refill the coolant system to specifications and inspect for leaks. Refer to
Cooling System Draining and Filling.