THERMOSTAT
THERMOSTAT REMOVAL
1. DRAIN ENGINE COOLANT
2. DISCONNECT RADIATOR OUTLET HOSE
3. REMOVE THERMOSTAT
(a) Remove the three nuts, water inlet and thermostat
with gasket from the water pump.
(b) Remove the gasket from the thermostat.
THERMOSTAT INSPECTION
HINT: Thermostat is numbered according to the valve
opening temperature.
(a) Immerse the thermostat in water and heat the water
gradually.
(b) Check the valve opening temperature and valve lift.
Valve opening temperature:
80 – 84 C (176 – 183 F)
Valve lift:
8 mm (0.31 in.) or more at 95 C (203 F)
If the valve opening temperature and valve lift are not
within specifications, replace the thermostat.
(c) Check that the valve spring is tight when the ther–
mostat is fully closed.
If not tight, replace the thermostat.
THERMOSTAT INSTALLATION
1. INSTALL THERMOSTAT
(a) Place a new gasket to the thermostat.
(b) Install the thermostat with the jiggle valve upward.
2. INSTALL WATER INLET
Install the water inlet with the three nuts.
Torque: 20 N–m (200 kgf–cm, 14 ft–lbf)
3. CONNECT RADIATOR OUTLET HOSE
4. FILL WITH ENGINE COOLANT
5. START ENGINE AND CHECK FOR LEAKS
–ENGINE COOLING SYSTEM
EG2–268
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