Water Pump: Service and Repair

COMPONENTS

REMOVAL
1. Remove the collector cover.
2. Remove the radiator.
3. Remove the V-belts.
4. Remove the timing belt.
5. Remove the automatic belt tension adjuster (A).
6. Remove the belt idler (B).





7. Remove the belt idler No. 2 (C).
8. Remove the camshaft position sensor.
9. Remove the cam sprocket (LH) using ST.





10. Remove the tensioner bracket.





11. Remove the belt cover No. 2 (LH).
12. Disconnect the hose from water pump.





13. Remove the water pump.

INSTALLATION





1. Install the water pump onto cylinder block (LH).

NOTE:
^ Always use new gasket.
^ When installing the water pump, tighten the bolts in two stages in alphabetical sequence as shown in the figure.

2. Install the hose to water pump.





3. Install the belt cover No. 2 (LH).





4. Install the tensioner bracket.
5. Install the cam sprocket (LH) using ST.
6. Install the camshaft position sensor.
7. Install the belt idler No. 2 (C).
8. Install the belt idler (B).





9. Install the automatic belt tension adjuster (A) which has a tension rod held by a pin.
10. Install the timing belt.
11. Install the V-belts.
12. Install the radiator.
13. Install the collector cover.

INSPECTION
1. Check the water pump bearing for smooth rotation.
2. Check the water pump pulley for abnormalities.
3. Make sure the impeller is not deformed or damaged.





4. Inspect the clearance between impeller and pump case.
5. After water pump installation, check the pulley shaft for engine coolant leaks and noise. If leaks or noise are noted, replace the water pump assembly.