Water Pump: Service and Repair

REMOVAL
1. REMOVE RADIATOR ASSEMBLY





2. REMOVE DRIVE BELT AND WATER PUMP PULLEY
a) Loosen the 4 nuts holding the water pump pulley to the water pump.
b) Loosen the drive belt tension by turning the drive belt tensioner clockwise, and remove the drive belt.
c) Remove the 4 nuts and water pump pulley.
3. REMOVE TIMING BELT AND IDLER PULLEY





4. REMOVE WATER BYPASS OUTLET AND NO.1 WATER BYPASS PIPE
a) Remove the 2 bolts, water bypass outlet and No.1 water bypass pipe.
b) Remove the 3 O-rings from the water bypass outlet and No.1 water bypass pipe.
5. REMOVE WATER INLET AND THERMOSTAT
6. REMOVE WATER PUMP





a) Loosen the nut and remove the bolt, slide the generator away from the water pump.
b) Remove the bolt, and disconnect the clamp bracket (for engine wire).
c) Remove the bolt, and disconnect the connector bracket (for crankshaft position sensor connector).





d) Remove the 2 nuts, and disconnect the No.2 water bypass pipe from the water pump.





e) Remove the 6 bolts, water pump and gasket.
f) Remove the drain hose.
g) Remove the O-ring from the cylinder block.

INSPECTION
INSPECT WATER PUMP





Turn the pulley seat, and check that the water pump bearing is not rough or noisy.
If necessary, replace the water pump.

INSTALLATION
1. INSTALL WATER PUMP





a) Install a new O-ring to the cylinder block.
b) Install the drain hose.





c) Install a new gasket to the water pump.
d) Connect the water pump to the water bypass pipe. Do not install the nut yet.





e) Install the water pump with the 2 bolts (A) and 4 bolts (B).
Torque: 21 Nm (210 kgf-cm, 15 ft. lbs.)

HINT: Hand tighten the (A) bolts first.

f) Install the 2 nuts holding the No.2 water bypass pipe to the water pump.
Torque: 21 Nm (210 kgf-cm, 15 ft. lbs.)
g) Install the connector bracket (for crankshaft position sensor connector) with the bolt.
h) Install the clamp bracket (for engine wire) with the bolt.
i) Install the generator with the bolt and nut.
Torque: 40 Nm (400 kgf-cm, 30 ft. lbs.)
2. INSTALL THERMOSTAT AND WATER INLET





3. INSTALL NO.1 WATER BYPASS PIPE AND WATER BYPASS OUTLET
a) Install 2 new O-rings to the No.1 water bypass pipe.
b) Install a new O-ring and the water bypass outlet with the 2 bolts.
Torque: 9.0 Nm (90 kgf-cm, 80 inch lbs.)
4. INSTALL IDLER PULLEY AND TIMING BELT
5. INSTALL WATER PUMP PULLEY AND DRIVE BELT
Torque: 14 Nm (140 kgf-cm, 10 ft. lbs.)
6. INSTALL RADIATOR ASSEMBLY