Water Pump: Service and Repair
REMOVAL1. Disconnect negative (-) cable at battery.
2. Drain cooling system.
3. Remove timing belt and tensioner.
4. Remove rubber seal (1) between oil pump and water pump.
5. Remove oil level gauge guide (1) with oil level gauge.
6. Remove generator adjusting arm (1).
7. Remove water pump assembly (1).
CAUTION: Do not disassemble water pump. If any repair is required on pump, replace it as assembly.
INSPECTION
Rotate water pump by hand to check for smooth operation. If pump does not rotate smoothly or makes abnormal noise, replace it.
INSTALLATION
1. Install new pump gasket (2) to cylinder block.
2. Install water pump (1) to cylinder block.
Tightening torque
Water pump bolt (G16 engine) (a): 12 Nm (1.2 kg-m, 8.5 ft. lbs.)
3. After installing water pump, install rubber seal (1) between water pump and oil pump.
4. Install belt tensioner, timing belt and timing belt outside cover.
5. Install generator adjusting arm (1).
6. With engine oil applied to O-ring (2), install oil level gauge guide (1).
7. Install crankshaft pulley, water pump pulley, pump drive belt, cooling fan/clutch and fan shroud.
Tightening torque
Cooling fan/clutch nuts (G16 engine): 11 Nm (1.1 kg-m, 8.0 ft. lbs.)
Crankshaft pulley No.2 bolts (G16 engine): 16 Nm (1.6 kg-m, 11.5 ft. lbs.)
8. Adjust cooling fan belt tension.
9. Connect negative cable (-) at battery.
10. Fill coolant.
11. After installation, check each part for leakage.