DISASSEMBLY
- Drain the coolant and disconnect the coolant inlet pipe connection hose from the coolant pump.
- Remove the drive belt and engine coolant pump pulley.
- Remove the timing belt covers and the timing belt idler.
- Remove the coolant pump mounting bolts, then remove the alternator brace.
- Remove the coolant pump assembly from the cylinder block.
Scheme 154
- Check each part for cracks, damage or wear, and replace the coolant pump assembly if necessary.
- Check the bearing for damage, abnormal noise and sluggish rotation, and replace the coolant pump assembly if necessary.
- Check for coolant leakage. If coolant leaks then the seal is defective. Replace the coolant pump assembly.
Scheme 155
- Clean the gasket surfaces of the coolant pump body and the cylinder block.
- Install a new coolant pump gasket to the coolant pump and tighten the bolts to the specified torque. Tightening torque Coolant pump to cylinder block: A: 12-15 N.m (120-150 kg.cm, 9-11 lb.ft) B: 20-27 N.m (200-270 kg.cm, 15-20 lb.ft)
- Install the timing tensioner and timing belt. Adjust the timing belt tension.
- Install the timing belt covers.
- Install the coolant pump pulley and drive belt, and then adjust the belt tension.
- Refill the system with clean coolant.
- Run the engine and check for leaks.
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Scheme 159
- Disconnect the radiator fan motor connector.
- Set the temperature of the heater control to the hot position.
- Loosen the radiator drain plug to drain coolant.
- Disconnect the upper and lower hose and overflow tube.
- For vehicles with automatic transmission, disconnect the oil cooler hoses from the automatic transmission. CAUTION: Plug the ends of the oil cooler hoses and the automatic transmission fittings to prevent transmission fluid from spilling out and foreign material from entering
- Remove the radiator mounting bolts.
- Remove the radiator together with the fan motor.
- Remove the fan motor from the radiator.