Forester S F4-2.5L DOHC (1998)
3) Using a dial gauge, measure impeller runout in thrust direction while rotating the pulley.
"Thrust" runout limit: 0.5 mm (0.020 inch)
4) Check clearance between impeller and pump case.
Clearance between impeller and pump case:
Standard: 0.5 - 0.7 mm (0.020 - 0.028 in)
Limit: 1.0 mm (0.039 in)
5) After water pump installation, check pulley shaft for engine coolant leaks. If leaks are noted, replace water pump assembly.
INSTALLATION
1) Install water pump onto left-hand cylinder head.
CAUTION:
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Replace gasket with a new one.
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When installing water pump, tighten bolts in two stages in alphabetical sequence as shown in figure.
Tightening torque: 10+4/-0 Nm (1.0+0.4/-0 kg-m, 7.2+2.9/-0 ft. lbs.)
