Subaru Legacy (2005 year). Service manual - part 93

 

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Subaru Legacy (2005 year). Service manual - part 93

 

 

LU(H4SO 2.0)-17

LUBRICATION

Oil Pan and Strainer

6) Lower the engine onto front crossmember.
7) Tighten the nuts which install front cushion rub-
ber onto front crossmember.

Tightening torque:

85 N

m (8.7 kgf-m, 62.7 ft-lb)

8) Install the front and center exhaust pipe. <Ref. to
EX(H4SO 2.0)-7, INSTALLATION, Front Exhaust
Pipe.> <Ref. to EX(H4SO 2.0)-9, INSTALLATION,
Center Exhaust Pipe.>
9) Install the under cover.
10) Lower the vehicle.

CAUTION:
When lowering the vehicle, lower the lift-up de-
vice and wire ropes at the same time.
11) Remove the lifting device and wire ropes.

12) Install the pitching stopper.

Tightening torque:

T1: 50 N

m (5.1 kgf-m, 36.9 ft-lb)

T2: 58 N

m (5.9 kgf-m, 42.8 ft-lb)

13) Install the hood stay holder (A) and radiator up-
per brackets (B).

14) Install the air intake chamber.
<Ref. to IN(H4SO 2.0)-7, INSTALLATION, Air In-
take Chamber.>
15) Install the air intake duct and air cleaner case.
<Ref. to IN(H4SO 2.0)-8, INSTALLATION, Air In-
take Duct.> <Ref. to IN(H4SO 2.0)-5, INSTALLA-
TION, Air Cleaner Case.>
16) Install the front wheels.
17) Connect the ground cable to battery.

18) Fill the engine oil. <Ref. to LU(H4SO 2.0)-9, IN-
SPECTION, Engine Oil.>

C: INSPECTION

Visually check that the oil pan, oil strainer, oil
strainer stay and baffle plate are not damaged.

LU-00223

LU-00222

LU-00233

T2

T1

LU-00232

(A)

(B)

(B)

IN-00203

LU(H4SO 2.0)-18

LUBRICATION

Oil Pressure Switch

6. Oil Pressure Switch

A: REMOVAL

1) Remove the generator from bracket.
<Ref. to SC(H4SO 2.0)-14, REMOVAL, Genera-
tor.>
2) Disconnect the terminal from oil pressure switch.

3) Remove the oil pressure switch.

B: INSTALLATION

1) Apply liquid gasket to oil pressure switch
threads.

Liquid gasket:

THREE BOND 1324 (Part No. 004403042) or 
equivalent

2) Install the oil pressure switch onto engine block.

Tightening torque:

25 N

m (2.5 kgf-m, 18.4 ft-lb)

3) Connect the terminal to oil pressure switch.

4) Install the generator to bracket.
<Ref. to SC(H4SO 2.0)-14, INSTALLATION, Gen-
erator.>

C: INSPECTION

Check the oil pressure switch installation portion for
oil leakage and oil seepage. 

LU-00036

LU-00037

LU-00038

LU-00037

LU-00036

LU(H4SO 2.0)-19

LUBRICATION

Engine Oil Filter

7. Engine Oil Filter

A: REMOVAL

1) Lift-up the vehicle.
2) Remove the oil filter using ST.
ST

18332AA000

OIL FILTER WRENCH (Outer 
diameter: 68 mm (2.68 in))

ST

18332AA010

OIL FILTER WRENCH (Outer 
diameter: 65 mm (2.56 in))

B: INSTALLATION

1) Clean the oil filter installing surface on cylinder
block.
2) Apply a thin coat of engine oil to the seal rubber
of new oil filter.
3) Install the oil filter turning it by hand, being care-
ful not to damage the seal rubber.
4) Tighten more after the seal rubber contacts cyl-
inder block.

NOTE:
• In case of oil filter in outer diameter 68 mm (2.68
in), tighten by approx. one turn.
• In case of oil filter in outer diameter 65 mm (2.56
in), tighten by approx. 2/3 to 3/4 turn.
• Do not tighten excessively because oil may leak.

C: INSPECTION

1) After installing the oil filter, run engine and make
sure that no oil is leaking around the seal rubber.

NOTE:
The filter element and filter case are permanently
jointed; therefore, interior cleaning is not neces-
sary.
2) Check the engine oil level. <Ref. to LU(H4SO
2.0)-9, INSPECTION, Engine Oil.>

LU-00234

LU(H4SO 2.0)-20

LUBRICATION

Engine Lubrication System Trouble in General

8. Engine Lubrication System Trouble in General

A: INSPECTION

Before performing diagnosis, make sure that the engine oil level is correct and no oil leakage exists.

Symptom

Possible cause

Corrective action

1. Warning light does 
not go off.

1) Oil pressure switch 
failure

Cracked diaphragm or oil leakage within switch

Replace.

Broken spring or seized contacts

Replace.

2) Low oil pressure

Clogging of oil filter

Replace.

Malfunction of oil by-pass valve in oil filter

Clean or replace.

Malfunction of oil relief valve in oil pump

Clean or replace.

Clogged oil passage

Clean.

Excessive tip clearance and side clearance of oil 
pump rotor and gear

Replace.

Clogged oil strainer or broken pipe

Clean or replace.

3) No oil pressure

Insufficient engine oil

Replenish.

Broken pipe of oil strainer

Replace.

Stuck oil pump rotor

Replace.

2. Warning light does 
not turn on.

1) Malfunction of combination meter.

Replace.

2) Poor contact of switch contact points

Replace.

3) Disconnection of wiring

Repair.

3. Warning light flickers 
momentarily.

1) Poor contact at terminals

Repair.

2) Defective wiring harness

Repair.

3) Low oil pressure

Check for the same 
possible causes as 
listed in 1) — 2).

 

 

 

 

 

 

 

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