Water Pump: Service and Repair

REMOVAL
1. Drain the coolant and disconnect the radiator outlet hose and engine coolant bypass hose from the engine coolant pump.
2. Remove the drive belt and engine coolant pump pulley.
3. Remove the timing belt covers and the timing belt tensioner.
4. Remove the engine coolant pump mounting bolts, then remove the generator brace.
5. Remove the engine coolant pump assembly from the cylinder block.


INSTALLATION
1. Clean the gasket surfaces of the engine coolant pump body and the cylinder block.






2. Install the new O-ring onto the groove on the front end of the engine coolant pipe, then wet the O-ring with engine coolant.

NOTE: Do not apply oil or grease.

3. Install new engine coolant pump gasket and engine coolant pump assembly.






4. Install bolts by length as shown in the illustration, then tighten the bolts to specified torque as follows:
Headmark "4" bolt; 12-15 Nm (120-150 kg. cm, 9-11 ft. lbs.).
Headmark "7" bolt; 20-27 Nm (200-270 kg. cm, 14-20 ft. lbs.).
5. Install the timing belt tensioner and timing belt, then adjust the timing belt tension as described under timing components.
5. Install the timing belt covers.
5. Install the engine coolant pump pulley and drive belt, then adjust the belt tension as described under Drive Belts, Mounts, Brackets and Accessories.
6. Refill the coolant. Run the engine and check for leaks.