3. REMOVE WATER INLET PIPE
(a) Remove the bolt holding the water inlet pipe to the generator
belt adjusting bar.
(b) Remove the water inlet pipe and O–ring.
4. DISCONNECT ENGINE COOLANT TEMPERATURE
SENSOR CONNECTOR
5. REMOVE WATER INLET
Remove the three nuts and water inlet from water pump.
6. REMOVE THERMOSTAT AND GASKET
THERMOSTAT INSPECTION
EG09Y–01
INSPECT THERMOSTAT
HINT: The thermostat is numbered with the valve opening
temperature.
(a) Immerse the thermostat in water and gradually heat the
water.
(b) Check the valve opening temperature.
Valve opening temperature:
80–84°C (176–183°F)
If the valve opening temperature is not as specified, replace
the thermostat.
(c) Check the valve lift.
Valve lift:
8.5 mm (0.335 in.) or more at 95°C (203°F)
If the valve lift is not as specified, replace the thermostat.
(d) Check that the valve spring is tight when the thermostat is
fully closed.
If not closed, replace the thermostat.
–ENGINE TROUBLESHOOTING COOLING SYSTEM
EG–251
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