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COOLING SYSTEM 4-19
Thermostat
•
Replace the O-rings [A] with a new one.
•
Apply grease to the new O-rings.
•
Install a new O-rings into the thermostat housing [B] and
Cover [C].
If the coolant by-pass fitting bolt [D] was removed, install
it.
○
Apply a non-permanent locking agent to the threads of
the coolant by-pass fitting bolt, and tighten it.
Torque - Coolant By-pass Fitting Bolt: 9.0 N·m (0.92 kgf·m,
80 in·lb)
•
Tighten the thermostat housing cover bolts [E].
Torque - Thermostat Housing Cover Bolts: 6.0 N·m (0.60
kgf·m, 53 in·lb)
•
Install the thermostat housing.
Torque - Thermostat H ousing Mounting Bolts: 10 N·m (1.0
kgf·m, 89 in·lb)
•
Align the thermostat housing cover bolt [A] and white mark
[B] of water hose [C].
•
Install the water hose clamp [D].
Torque - Water Hose Clamp Screw: 2.0 N·m (0.20 kgf·m, 18
in·lb)
•
Install the removed parts (see appropriate chapters).
•
Fill the radiator with coolant (see Coolant Change in the
Periodic Maintenance chapter).
Thermostat Inspection
•
Remove the thermostat (see Thermostat Removal).
•
Inspect the thermostat valve [A] at room temperature.
If the valve is open, replace the thermostat with a new
one.
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