Water Pump: Service and Repair
WATER PUMPWATER PUMP:
REMOVAL
1) Remove the collector cover.
2) Remove the radiator.
3) Remove the V-belts.
4) Remove the crank pulley.
5) Remove the timing belt.
6) Remove the automatic belt tension adjuster (A).
7) Remove the belt idler (B).
8) Remove the belt idler No. 2 (C).
9) Remove the cam sprocket (LH) using ST.
10) Remove the belt cover (LH) No. 2.
11) Remove the tensioner bracket.
12) Disconnect the hose from water pump.
13) Remove the water pump.
INSTALLATION
1) Install the water pump onto cylinder block (LH).
NOTE:
^ Use a new gasket.
^ When installing the water pump, tighten the bolts in two stages in alphabetical sequence as shown in figure.
Tightening torque:
First:
12 N-m (1.2 kgf-m, 8.9 ft. lbs.)
Second:
12 N-m (1.2 kgf-m, 8.9 ft. lbs.)
Tightening Torque:
2) Install the hose to water pump.
3) Install the tensioner bracket.
Tightening torque:
24.5 N-m (2.5 kgf-m, 18.1 ft. lbs.)
Tightening torque:
4) Install the belt cover No. 2 (LH).
Tightening torque:
5 N-m (0.5 kgf-m, 3.6 ft. lbs.)
Tightening torque:
5) Install the cam sprocket (LH) using ST.
6) Install the belt idler No. 2 (C).
7) Install the belt idler (B).
8) Install the automatic belt tension adjuster (A) which has a tension rod held by a pin.
Tightening torque:
39 N-m (4.0 kgf-m, 28.9 ft. lbs.)
Tightening torque:
9) Install the timing belt.
10) Install the crank pulley.
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.
Clearance between impeller and pump case:
Standard
0.5 - 1.5 mm (0.020 - 0.059 inch)
Clearance between impeller and pump case:
5) After water pump installation, check pulley shaft for engine coolant leaks or noise. If leaks or noise are noted, replace the water pump assembly.