THERMOSTAT
REMOVAL OF THERMOSTAT
1. DISCONNECT CABLE FROM NEGATIVE TERMINAL OF
BATTERY
CAUTION: Work must be started after approx. 20 se-
conds or longer from the time the ignition switch is
turned to the ”LOCK” position and the negative (–) termi-
nal cable is disconnected from the battery.
2. DRAIN ENGINE COOLANT (See page CO–5)
3. REMOVE WATER INLET PIPE
(See steps 3 and 5 on page CO–6)
4. DISCONNECT WATER TEMPERATURE SENSOR
CONNECTOR
5. REMOVE WATER INLET
Remove the three nuts and water inlet from the water pump.
6. REMOVE THERMOSTAT AND GASKET
INSPECTION OF THERMOSTAT
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 less than specification, replace the thermo-
stat.
(d) Check that the valve spring is tight when the thermostat
is fully closed.
–COOLING SYSTEM Thermostat
CO–9
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