Subaru LEGACY 2006 Manual page 89

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COOLING
C: INSPECTION
Replace the thermostat if the valve does not close
completely at an ambient temperature or if the fol-
lowing test shows unsatisfactory results.
• Inspection method
Immerse the thermostat and a thermometer in wa-
ter. Raise water temperature gradually, and mea-
sure the temperature and valve lift when the valve
begins to open and when the valve is fully opened.
During the test, agitate the water for even temper-
ature distribution. The measured value should
meet the specification.
NOTE:
• Leave the thermostat in the boiling water for
more than five minutes before measuring valve
lift.
• Hold the thermostat with a wire or the like to
avoid contacting with container bottom.
Opening start temperature:
80 — 84°C (176 — 183°F)
Full open temperature:
95°C (203°F)
Valve lift:
9.0 mm (0.354 in) or more
(A) Thermometer
(B) Thermostat
Thermostat
( A )
( B )
CO-00033
CO(H4SO)-18