Cooling System - Water Pump

WATER PUMP - COMPONENTS

REMOVAL

1. Drain the coolant and disconnect the coolant inlet pipe connecting hose from the water pump.

2. Remove the generator drive belt and the water pump pulley.

3. Remove the timing belt covers and the timing belt idler pulley.

4. Loosen the water pump mounting bolts, then remove the generator adjusting bracket.

5. Remove the water pump assembly from the cylinder block.

INSPECTION

1. Inspect each part for cracks, damage, or wear. Replace the water pump assembly if necessary.

2. Check the bearing for damage, excessive noise during operation, and rough rotation. Replace the water pump assembly if necessary.

3. Check the pump for coolant leaks. If there are coolant leaks, the seal assembly is faulty. Replace the water pump assembly.

INSTALLATION

1. Remove the remains of the old gasket from the mating surfaces of the water pump and cylinder block.

2. Install the water pump with a new gasket and tighten the pump mounting bolts to the specified torque.

Tightening torque Water pump mounting bolts to cylinder block: 20 - 27 N·m 3. Install the timing belt idler pulley. Adjust the timing belt tension.

4. Install the timing belt covers.

5. Install the water pump pulley and the generator drive belt, then adjust the belt tension.

6. Fill the cooling system with clean coolant.

7. Start the engine and check for coolant leaks.