Water Pump: Service and Repair

REMOVAL
1. REMOVE ENGINE UNDER COVER
2. DRAIN ENGINE COOLANT





3. DISCONNECT AIR PIPE
Remove the 2 bolts and disconnect the air pipe from the fan shroud.
4. DISCONNECT UPPER RADIATOR HOSE FROM RADIATOR





5. REMOVE OIL DIPSTICK GUIDE
a. Remove the bolt, dipstick guide and engine wire bracket.
b. Remove the O-ring from the dipstick guide.

HINT: At the time of installation, please refer to the following items. Use a new O-ring.





6. w/PS: REMOVE DRIVE BELT FOR PS PUMP
Loosen the lock bolt and adjusting bolt, and remove the drive belt.





7. REMOVE FAN SHROUDS
a. Remove the 2 clips and No.2 fan shroud.
b. Remove the 4 bolts and No.1 fan shroud.
8. w/ A/C: REMOVE DRIVE BELT FOR A/C COMPRESSOR
Loosen the idler pulley nut and adjusting bolt, and remove the drive belt.





9. REMOVE DRIVE BELT FOR GENERATOR, FAN WITH FLUID COUPLING AND WATER PUMP PULLEY
a. Stretch the belt and loosen the water pump pulley nuts.
b. Loosen the lock, pivot and adjusting bolts of the generator, and remove the drive belt.
c. Remove the 4 water pump pulley nuts.
Torque: 21 Nm (210 kgf.cm, 16 ft. lbs.)
d. Pull out the fan together with the fluid coupling and water pump pulley.





10. REMOVE WATER PUMP
Remove the 10 bolts, water pump and gasket.
Torque:
14 mm head bolt: 24.5 Nm (250 kgf.cm, 18 ft. lbs.)
12 mm head bolt: 8.9 Nm (90 kgf.cm, 78 inch lbs.)

HINT: At the time of installation, please refer to the following items. Use a new gasket.

INSPECTION





1. INSPECT WATER PUMP
a. Visually check the air hole and drain hole for coolant leakage.
If leakage is found, replace the water pump.
b. Turn the pulley, and check that the water pump bearing moves smoothly and quietly.
If necessary, replace the water pump.





2. INSPECT FLUID COUPLING
a. Remove the 4 nuts and fan from the fluid coupling.
b. Check the fluid coupling for damage and silicon oil leakage.
If necessary, replace the fluid coupling.
c. Install the fan and fluid coupling with the 4 nuts.
Torque: 5.5 Nm (55 kgf.cm, 49 inch lbs.)

INSTALLATION
Installation is in the reverse order of removal.