Subaru Legacy IV (2008 year). Manual - part 84

CO(H4SO)-22

Radiator

COOLING

C: INSPECTION

1) Remove the radiator cap, fill the radiator with en-
gine coolant, and then install the tester to the instal-
lation position of cap.

2) Apply a pressure of 157 kPa (1.6 kg/cm

2

, 23 psi)

to the radiator and check the following points:
• Leakage from the radiator or its vicinity
• Leakage from the hose or its connections

CAUTION:
• Engine should be turned off.
• Wipe engine coolant from check points in ad-
vance.
• Be careful of engine coolant from spurting
out when removing the tester.
• Be careful not to deform the filler neck of ra-
diator when installing and removing the tester.

CO-02475

CO(H4SO)-23

Radiator Cap

COOLING

7. Radiator Cap

A: INSPECTION

1) Attach the radiator cap to tester.

2) Increase pressure until the tester gauge pointer
stops. Radiator cap is functioning properly if it holds
the service limit pressure for five to six seconds.
Replace the cap if it is opened under a pressure
less than the service limit value.

Standard:

93 — 123 kPa 
(0.95 — 1.25 kg/cm

2

, 14 — 18 psi)

Service limit:

83 kPa (0.85 kg/cm

2

, 12 psi)

CAUTION:
Be sure to remove foreign matter and rust from
the cap in advance. Otherwise, results of pres-
sure test will be incorrect.

CO-00044

CO(H4SO)-24

Radiator Main Fan and Fan Motor

COOLING

8. Radiator Main Fan and Fan 

Motor

A: REMOVAL

1) Set the vehicle on a lift.
2) Disconnect the ground cable from battery.

3) Lift up the vehicle.
4) Remove the under cover.
5) Disconnect the connector (A) of the radiator
main fan motor.

6) Remove the heat shield cover. (AT model)

7) Remove the ATF hose from the clip of the radia-
tor main fan motor assembly. (AT model)
8) Lower the vehicle.
9) Disconnect the over flow hose.
10) Remove the reservoir tank. <Ref. to
CO(H4SO)-28, REMOVAL, Reservoir Tank.>
11) Drain approximately 2.0 

2 of coolant. <Ref. to

CO(H4SO)-13, DRAINING OF ENGINE COOL-
ANT, REPLACEMENT, Engine Coolant.>

12) Disconnect the radiator inlet hoses from the en-
gine.

13) Remove the bolts which hold the radiator main
fan shroud to the radiator.

14) Remove the radiator main fan motor assembly.

IN-00203

(A)

CO-02097

CO-02355

CO-00277

CO-00096

CO(H4SO)-25

Radiator Main Fan and Fan Motor

COOLING

B: INSTALLATION

Install in the reverse order of removal.

NOTE:
If the installation of the radiator main fan motor as-
sembly is difficult, attempt installation after loosen-
ing the bolts which hold the radiator sub fan motor
assembly.

Tightening torque:

7.5 N·m (0.8 kgf-m, 5.5 ft-lb)

Tightening torque:

3 N·m (0.3 kgf-m, 2.2 ft-lb)

C: DISASSEMBLY

1) Remove the clip which holds motor connector
onto the shroud.
2) Remove the nuts which hold the fan to the fan
motor.

3) Remove the bolts which hold fan motor onto
shroud.

D: ASSEMBLY

Assemble in the reverse order of disassembly.

Tightening torque:

5 N·m (0.5 kgf-m, 3.7 ft-lb)

Tightening torque:

3.4 N·m (0.3 kgf-m, 2.5 ft-lb)

CO-00096

CO-02355

CO-00102

CO-00098

CO-00098

CO-00102