Subaru LEGACY 2006 Manual page 83

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Water Pump
COOLING
C: INSPECTION
1) Check the water pump bearing for smooth rota-
tion.
2) Check the water pump pulley for abnormalities.
3) Make sure the impeller is not deformed or dam-
aged.
4) Inspect the clearance between impeller and
pump case.
Clearance between impeller and pump case:
Standard
0.4 — 1.6 mm (0.016 — 0.063 in)
CO-00293
5) After water pump installation, check pulley shaft
for engine coolant leaks. If leaks are noted, replace
the water pump assembly.
CO(H4SO)-16