Overhaul
Water Pump RemovalSpecial Tool
^ EN 46104 Water Pump Pulley Holding Tool
1. Install the EN 46104 (1) onto the water pump pulley.
2. Remove the water pump pulley bolts.
3. Remove the water pump pulley.
4. Remove the water pump bolts.
5. Remove the water pump from the front cover.
6. Remove the water pump gasket.
Water Pump Cleaning and Inspection
Cleaning Procedure
CAUTION: Do not immerse the water pump in solvent. The solvent may enter the water pump's permanently lubricated bearings and cause premature bearing failure.
1. Remove the old gasket material from the water pump sealing surfaces.
2. Clean all excess dirt and debris from the water pump housing
Inspection Procedure
1. Rotate the water pump hub (1). The water pump hub and impeller should turn straight and smoothly. If the hub wobbles, is noisy, or feels rough when rotated, replace the water pump.
2. Inspect the exterior of the water pump for the following:
^ Damage to the water pump hub bolt threads (2) for the water pump pulley
^ Damage to the water pump bolt holes (3)
3. Examine the water pump shaft (1) and the weep hole reservoir (2) in the water pump body for signs of leakage. If coolant leakage is evident, replace the water pump.
4. Inspect the interior of the water pump for the following:
^ Damage to the water pump gasket sealing surface (1)
^ Damage, corrosion or restrictions to the water pump impeller (2)
^ Damage, corrosion or restrictions to the coolant passages (3)
5. Repair or replace the water pump as necessary
Water Pump Installation
Special Tool
^ EN 46104 Water Pump Pulley Holding Tool
1. Ensure that the engine front cover and water pump are clear of old gasket material.
2. Place a new water pump gasket on the water pump.
3. Place the water pump in position on the front cover.
CAUTION: Refer to [Fastener Notice].
4. Install the water pump bolts.
Tightening torque
Tighten the water pump bolts to 10 Nm (89 in. lbs.).
5. Install the water pump pulley.
6. Loosely install the water pump pulley bolts.
7. Install the EN 46104 (1) onto the water pump pulley.
Tightening torque
Tighten the water pump pulley bolts to 10 Nm (89 in. lbs.).