Subaru Legacy IV (2008 year). Manual - part 87

 

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Subaru Legacy IV (2008 year). Manual - part 87

 

 

LU(H4SO)-5

General Description

LUBRICATION

• TURBO MODEL

(1)

Plug

(16)

Oil pressure switch

(31)

Seal

(2)

Gasket

(17)

Oil filler duct

(32)

O-ring

(3)

Relief valve spring

(18)

O-ring

(33)

Gasket

(4)

Relief valve

(19)

Rocker cover

(34)

O-ring

(5)

Front oil seal

(20)

Baffle plate

(35)

Nipple

(6)

Oil pump case

(21)

O-ring

 

(7)

Inner rotor

(22)

Oil strainer

Tightening torque:N·m (kgf-m, ft-lb)

(8)

Outer rotor

(23)

Gasket

T1: 5 (0.5, 3.7)

(9)

Oil pump cover

(24)

Oil level gauge guide

T2: 5.4 (0.6, 4.0)

(10)

Oil filter

(25)

Oil pan

T3: 6.4 (0.7, 4.7)

(11)

Oil cooler connector

(26)

Oil level gauge

T4: 10 (1.0, 7.4)

(12)

Water by-pass pipe

(27)

Drain plug gasket

T5: 25 (2.5, 18.4)

(13)

Oil cooler

(28)

Drain plug

T6: 44 (4.5, 32.5)

(14)

O-ring

(29)

Gasket

T7: 54 (5.5, 39.8)

(15)

Oil pump ASSY

(30)

Oil filler cap

T8: 69 (7.0, 50.9)

LU-02422

(15)

(14)

T5

T3

T2

T6

(9)

(8)

(7)

(6)

(16)

(26)

(5)

(4)

(3)

(2)

(1)

(29)

(19)

T7

(11)

(12)

(10)

T3

(13)

T8

T6

(28)

(25)

(27)

(23)

T1

T3

(24)

(32)

T3

(20)

(31)

T4

(22)

(21)

T3

(18)

(17)

(30)

(33)

T3

(34)

T3

(35)

LU(H4SO)-6

General Description

LUBRICATION

C: CAUTION

• Wear appropriate work clothing, including a cap, protective goggles and protective shoes when performing
any work.
• Remove contamination including dirt and corrosion before removal, installation or disassembly.
• Keep the disassembled parts in order and protect them from dust and dirt.
• Before removal, installation or disassembly, be sure to clarify the failure. Avoid unnecessary removal, in-
stallation, disassembly and replacement.
• Be careful not to burn your hands, because each part on the vehicle is hot after running.
• Be sure to tighten fasteners including bolts and nuts to the specified torque.
• Place shop jacks or rigid racks at the specified points.
• Before disconnecting connectors of sensors or units, be sure to disconnect the ground cable from battery.
• If the engine oil is spilt over exhaust pipe or the under cover, wipe it off with cloth to avoid emitting smoke
or causing a fire.
• Prepare a container and cloth to prevent scattering of oil when performing work where fuels can be spilled.
If the fuel spills, wipe it off immediately to prevent from penetrating into floor or flowing out for environmental
protection.
• Follow all government and local regulations concerning disposal of refuse when disposing oil.

D: PREPARATION TOOL

1. SPECIAL TOOL

2. GENERAL TOOL

ILLUSTRATION

TOOL NUMBER

DESCRIPTION

REMARKS

18332AA000

OIL FILTER 
WRENCH

Used for removing and installing oil filter (Black). 
(Outer diameter: 68 mm (2.68 in))

499587100

OIL SEAL 
INSTALLER

Used for installing oil seal into oil pump.

TOOL NAME

REMARKS

Oil filter wrench (65/67 mm 14 Flutes)

Used for removing and installing oil filter (Blue). 
(Outer diameter: 67.4 mm (2.65 in))

ST18332AA000

ST-499587100

LU(H4SO)-7

Oil Pressure System

LUBRICATION

2. Oil Pressure System

A: WIRING DIAGRAM

E

i3

B38

B21

E2

17

E11

No. 5

SBF-6

MAIN SBF

B72

3

1

B72

A15

i10

i10

A3

1

3

4 5 6

2

2

1

3 4

6 7 8 9 10

22

21

20

19

18

17

16

15

14

13

12

11

5

1 2 3 4

5 6 7 8 9

10 11 12 13 14 15 16 17 18 19 20

B38

B21

1 2 3 4

12 13 14 15

5 6 7 8

16 17 18 19

9 10 11

20 21 22

23 24 25 26 27 28 29 30 31 32 33

35

34

37

36

39

38

41

40

43

42

44

45

47

46

49

48

51

50

53

52

54

A:

A:

BATTERY

IGNITION
SWITCH

COMBINATION 
METER

OIL PRESSURE 

W

ARNING LIGHT

OIL PRESSURE

SWITCH

LU-02478

*

: TURBO  MODEL

: 45

*

EXCEPT FOR TURBO MODEL

: 31

LU(H4SO)-8

Oil Pressure System

LUBRICATION

B: INSPECTION

Step

Check

Yes

No

1

CHECK COMBINATION METER.
1) Turn the ignition switch to ON (engine OFF).
2) Check other warning lights.

Does the warning light illumi-
nate?

Go to step 2.

Repair or replace 
the combination 
meter. <Ref. to IDI-
5, INSPECTION, 
Combination Meter 
System.>

2

CHECK THE HARNESS CONNECTOR BE-
TWEEN THE COMBINATION METER AND 
THE OIL PRESSURE SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from oil pressure 
switch.
3) Turn the ignition switch to ON.
4) Measure the voltage of harness between oil 
pressure switch connector and chassis ground.

Connector & terminal

(E11) No. 1 (+) — Chassis ground (–):

Is the voltage 10 V or more?

Replace the oil 
pressure switch.

Go to step 3.

3

CHECK COMBINATION METER.
1) Turn the ignition switch to OFF.
2) Remove the combination meter.
3) Measure the resistance of combination 
meter.

Terminals

(i10) No. 3 — No. 15:

Is the resistance less than 10 

:? Repair the harness 

and connector.

NOTE:
In this case, repair
the following item:
• Open circuit of
harness between
combination meter
and oil pressure
switch
• Poor contact in
combination meter
connector
• Poor contact of
coupling connector

Repair or replace 
the combination 
meter. <Ref. to IDI-
5, INSPECTION, 
Combination Meter 
System.>

 

 

 

 

 

 

 

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