Water Pump: Service and Repair

Information.
2. Drain coolant, then disconnect lower radiator hose from water inlet pipe.
3. Disconnect timing belt from water pump pulley as previously described.
4. Remove water inlet pipe, then the water inlet and thermostat. Disconnect the engine coolant temp sensor.
5. Remove water pump.
6. Reverse procedure to install. Rearm airbag system as previously described.

Fig. 36 Water Pump Removal:

WATER PUMP REMOVAL
1. DISCONNECT CABLE FROM NEGATIVE TERMINAL OF BATTERY

CAUTION: (with / Airbag): Work must be started after approx. 30 seconds or longer from the time the ignition switch is turned to the "LOCK" position and the negative (-) terminal cable is disconnected from the battery.

2. DRAIN ENGINE COOLANT

3. DISCONNECT RADIATOR LOWER HOSE FROM WATER INLET PIPE
4. REMOVE TIMING BELT
5. REMOVE WATER INLET PIPE
(a) Remove the bolt holding the water inlet pipe to the generator belt adjusting bar.
(b) Remove the water inlet pipe and 0-ring.

6. REMOVE WATER INLET AND THERMOSTAT
(a) Disconnect the engine coolant temperature sensor connector.
(b) Remove the three nuts and water inlet from the water pump.
(c) Remove the thermostat and gasket.

7. REMOVE WATER PUMP
(a) Remove the seven bolts.
(b) Remove the water pump by prying a screwdriver between the water pump and cylinder block.

WATER PUMP INSPECTION
INSPECT WATER PUMP
Turn the pulley and check that the water pump bearing moves smoothly and quietly.

WATER PUMP INSTALLATION
1. INSTALL WATER PUMP
(a) Remove any old packing (FIPG) material and be careful not to drop any oil on the contact surfaces of the water pump and cylinder block.
- Using a razor blade and gasket scraper, remove all the old packing (FIPG) material from the gasket surfaces and sealing groove.
- Thoroughly clean all components to remove all the loose material.
- Using a non-residue solvent, clean both sealing surfaces.

(b) Apply seal packing to the water pump groove. Seal packing: Part No.08826-00100 or equivalent
- Install a nozzle that has been cut to a 2-3 mm (0.08-0.12 in.) opening.

HINT: Avoid applying an excessive amount to the surface.
- Parts must be assembled within 5 minutes of application. Otherwise the material must be removed and reapplied.
- Immediately remove nozzle from the tube and reinstall cap.

2. INSTALL WATER INLET AND THERMOSTAT
(a) Install a new gasket to the thermostat.
(b) Align the jiggle valve of the thermostat with stud bolt (A), and inset the thermostat in the water pump.

3. INSTALL WATER INLET PIPE
(a) Install a new 0-ring to the water inlet pipe.
(b) Apply soapy water to the 0-ring.

(c) Connect the water inlet pipe to the water inlet.
(d) Install the bolt holding the water inlet pipe to the generator belt adjusting bar.
Torque: 20 N.m (200 kgf.cm, 14 ft.lbf)

4. INSTALL TIMING BELT
5. CONNECT RADIATOR LOWER HOSE
6. CONNECT CABLE TO NEGATIVE TERMINAL OF BATTERY
7. FILL WITH ENGINE COOLANT