Subaru 2009 IMPREZA Service Manual page 351

5. Thermostat
A: REMOVAL
1) Set the vehicle on a lift.
2) Lift up the vehicle.
3) Remove the under cover.
4) Drain the engine coolant. <Ref. to CO(H4SO)-
13, DRAINING OF ENGINE COOLANT, RE-
PLACEMENT, Engine Coolant.>
5) Remove the front exhaust pipe. <Ref. to
EX(H4SO)-6, REMOVAL, Front Exhaust Pipe.>
6) Disconnect the radiator outlet hose from thermo-
stat cover.
7) Remove the thermostat cover, and then remove
the gasket and thermostat.
(A) Thermostat cover
(B) Gasket
(C) Thermostat
Thermostat
CO-00270
(C)
(B)
(A)
CO-02336
CO(H4SO)-17
B: INSTALLATION
1) Install a gasket to thermostat.
NOTE:
Use a new gasket.
2) Install the thermostat and thermostat cover.
NOTE:
Install with the jiggle pin facing upward.
Tightening torque:
12 N·m (1.2 kgf-m, 8.9 ft-lb)
T
(A) Thermostat cover
(B) Gasket
(C) Thermostat
(D) Jiggle pin
3) Connect the radiator outlet hose to thermostat
cover.
4) Install the front exhaust pipe. <Ref. to
EX(H4SO)-7, INSTALLATION, Front Exhaust
Pipe.>
5) Install the under cover.
6) Lower the vehicle.
7) Fill engine coolant. <Ref. to CO(H4SO)-13,
FILLING OF ENGINE COOLANT, REPLACE-
MENT, Engine Coolant.>
COOLING
(D)
(C)
(B)
(A)
CO-02337