Water Pump: Service and Repair

Coolant Pump - 6.0L Diesel













Removal

1. Remove the cooling fan stator. For additional information, refer to Cooling Fan Stator - 6.0L Diesel Cooling Fan Stator.

2. Loosen the 4 coolant pump pulley bolts.

3. Rotate the drive belt tensioner clockwise and remove the accessory drive belt from the coolant pump pulley.





4. Remove the 4 bolts and the coolant pump pulley.

5. Remove the 4 bolts and the coolant pump.
- Discard the O-ring seal.

6. Clean and inspect the coolant pump sealing surfaces with metal surface prep.

Installation

1. NOTE: Lubricate the new O-ring seal with clean engine coolant prior to installation.

Install a new O-ring on the coolant pump.

2. NOTICE: Do not rotate the coolant pump housing once the coolant pump has been positioned in the cylinder block. Damage to the O-ring seal will occur.

Position the coolant pump and install the 4 bolts.

- Tighten to 23 Nm (17 lb-ft).

3. Position the coolant pump pulley and install the 4 bolts finger-tight.

4. Rotate the drive belt tensioner clockwise and install the accessory drive belt onto the coolant pump pulley.





5. Tighten the 4 coolant pump pulley bolts.
- Tighten to 31 Nm (23 lb-ft).

6. Install the cooling fan stator. For additional information, refer to Cooling Fan Stator - 6.0L Diesel Cooling Fan Stator.