Subaru Legacy IV (2008 year). Manual - part 498

CO(H6DO)-18

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.

Specification:

93 — 123 kPa 
(0.95 — 1.25 kgf/cm

2

, 14 — 18 psi)

Service limit:

83 kPa (0.85 kgf/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.

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CO(H6DO)-19

Radiator Main Fan and Fan Motor

COOLING

8. Radiator Main Fan and Fan 

Motor

A: REMOVAL

1) Set the vehicle on a lift.
2) Remove the collector cover.
3) Disconnect the ground cable from battery.

4) Remove the hood stay holder.

5) Remove the air intake duct. <Ref. to IN(H6DO)-
8, REMOVAL, Air Intake Duct.>
6) Disconnect the connector from radiator fan con-
trol unit.

7) Lift up the vehicle.
8) Remove the under cover.
9) Drain engine coolant completely. <Ref. to
CO(H6DO)-10, DRAINING OF ENGINE COOL-
ANT, REPLACEMENT, Engine Coolant.>
10) Remove the ATF hose from the clip of the radi-
ator main fan shroud.
11) Remove the radiator main fan motor harness
from the clip.
12) Lower the vehicle.

13) Remove the reservoir tank. <Ref. to
CO(H6DO)-24, REMOVAL, Reservoir Tank.>
14) Disconnect the radiator inlet hose from radia-
tor.

15) Remove the radiator sub fan motor assembly.

16) Remove the radiator main fan motor assembly.

NOTE:
When removing the main fan assembly with lifting it
up, the main fan shroud contacts to inlet part of en-
gine coolant. To avoid contacting it, move the main
fan assembly to sub fan assembly side before re-
moval.

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Radiator Main Fan and Fan Motor

COOLING

B: INSTALLATION

Install in the reverse order of removal.
• Radiator main fan assembly

Tightening torque:

7.5 N·m (0.8 kgf-m, 5.5 ft-lb)

• Hood stay holder

Tightening torque:

7.5 N·m (0.8 kgf-m, 5.5 ft-lb)

C: DISASSEMBLY

1) Remove the nut which holds fan to fan motor
and shroud assembly.

2) Remove the clip which holds the fan motor onto
the shroud.

D: ASSEMBLY

Assemble in the reverse order of disassembly.

Tightening torque:

3.8 N·m (0.4 kgf-m, 2.8 ft-lb)

Tightening torque:

6.2 N·m (0.6 kgf-m, 4.6 ft-lb)

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Radiator Main Fan and Fan Motor

COOLING

E: INSPECTION

1) Disconnect the connector from radiator fan con-
trol unit.

NOTE:
Do not remove the main fan motor harness connec-
tor.

2) Connect the battery to radiator fan control unit as
shown in the figure.

3) Check the fan motor for operations. If it does not
operate, check the fan motor.

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