Removal and Installation

Remove the engine cover.
Drain the engine coolant.
(Refer to Cooling System - " COOLANT ")
Remove the air cleaner assembly.
(Refer to Intake and Exhaust System - " AIR CLEANER ")
Disconnect the water temperature sensor connector (A).

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Disconnect the radiator upper hose (A).

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Disconnect the heater hoses (A).

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Disconnect the water hose (A) and then remove the water temperature control assembly (B) with the O-ring.
Tightening torque:

9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 kgf.m)

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Remove the intake manifold.
(Refer to Intake and Exhaust System - " INTAKE MANIFOLD ")
Remove the water pipe (A).
Tightening torque

M6 bolt and nuts:

9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb.ft)

M8 bolt:

18.6 - 23.5 N.m (1.9 - 2.4 kgf.m, 13.7 - 17.4 lb.ft)

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Install in the reverse order of removal.
NOTE:
- Install a new O-ring when replacing the water temperature control assembly.
- Clean the surface of the new O-ring, wet it with water and then install it.
Fill the engine coolant.
(Refer to Cooling System - " COOLANT ")
Start the engine and check for leaks.