Water Pump: Service and Repair

WATER PUMP REMOVAL/INSTALLATION [MZI-3.7]

Warning
^ Fuel vapor is hazardous. It can very easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel.
^ Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injures or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete the "Fuel Line Safety Procedure". (See BEFORE SERVICE PRECAUTION [MZI-3.7].) Before Service Precaution
^ Continuous exposure to USED engine oil has caused skin cancer in laboratory mice. Protect your skin by washing with soap and water immediately after working with engine oil.

Note
^ The following procedure "WATER PUMP REMOVAL/INSTALLATION" is performed after the engine and transaxle component is removed from the vehicle.

1. Drain the engine oil.
2. Remove the engine and transaxle component.
3. Secure the engine and transaxle component using a hoist and the SST.





4. Remove the dynamic chamber and throttle body as a single unit.
5. Remove the ignition coils.
6. Remove the dipstick.
7. Remove the power steering oil pump drive belt.
8. Remove the power steering oil pump.
9. Remove the timing chain component.
10. Remove in the order indicated in the table.
11. Install in the reverse order of removal.
12. Start the engine and:
(1) Inspect the runout and contact on the pulley and belt.
(2) Inspect for engine oil, engine coolant, ATF, power steering fluid and fuel leakage.
(3) Verify the ignition timing, idle speed and idle mixture. (See ENGINE TUNE-UP [MZI-3.7].) Testing and Inspection
(4) Engine accessories operation.
13. Perform a road test.





Upper Timing Chain Guide (RH) Removal Note
1. Loosen the upper timing chain guide (RH) bolt A.
2. Remove the upper timing chain guide (RH) bolt B.





3. Move the upper timing chain guide (RH) as shown.
4. Retighten the bolt A.





Water Pump Removal Note

Note
^ When the water pump is removed, the engine coolant may flow through the cylinder block and penetrate the oil pan. To prevent the engine coolant from accumulating in the oil pan, remove the oil pan drain plug before removing the water pump.

1. Remove the oil pan drain plug.
2. To prevent engine coolant from penetrating the oil pan, line the cylinder block with plastic sheeting as shown in the figure before removing the water pump.





Water Pump Installation Note
1. Tighten the water pump bolts in the order shown in the figure.

Tightening torque
8.5-11.5 14.m (87-117 kgf-cm, 76-101 in-lbf)