Subaru 2001 LEGACY Manuel utilisateur

This service manual has been prepared to provide

SUBARU service personnel with the necessary infor-

mation and data for the correct maintenance and

repair of SUBARU vehicles.

This manual includes the procedures for maintenance,

disassembling, reassembling, inspection and adjust-

ment of components and diagnostics for guidance of

experienced mechanics.

Please peruse and utilize this manual fully to ensure

complete repair work for satisfying our customers by

keeping their vehicle in optimum condition. When

replacement of parts during repair work is needed, be

sure to use SUBARU genuine parts.

All information, illustration and specifications con-

tained in this manual are based on the latest product

information available at the time of publication

approval.

FUJI HEAVY INDUSTRIES LTD.

2001 LEGACY SERVICE MANUAL QUICK REFERENCE INDEX

SUPPLEMENT FOR 6 CYLINDER

ENGINE MODEL

G2281GE

2001 LEGACY SERVICE MANUAL QUICK REFERENCE INDEX

SUPPLEMENT FOR 6 CYLINDER

ENGINE MODEL

G2281GE

IGNITION

IG(H6)

Page

1. General Description.....................................................................................2

2. Spark Plug...................................................................................................4

3. Ignition Coil and Ignitor Assembly...............................................................7

1. General Description S141001

A: SPECIFICATIONS S141001E49

Item Designation

Ignition coil and

ignitor assembly

Model FK0140

Manufacturer DIAMOND

Spark plug

Type and manufacturer PLFR6A-11 .......... NGK

Thread size mm 14, P = 1.25

Spark gap mm (in) 1.0 —1.1 (0.039 —0.043)

IG(H6)-2

GENERAL DESCRIPTION

Ignition

B: COMPONENT S141001A05

B2M4330A

(1) Spark plug

(2) Ignition coil and ignitor ASSY Tightening torque: N·m (kgf-m, ft-lb)

T1: 16 (1.6, 12)

T2: 21 (2.1, 15)

C: CAUTION S141001A03

쐌Wear working clothing, including a cap, protec-

tive goggles, and protective shoes during opera-

tion.

쐌Remove contamination including dirt and corro-

sion before removal, installation or disassembly.

쐌Keep the disassembled parts in order and pro-

tect them from dust or dirt.

쐌Before removal, installation or disassembly, be

sure to clarify the failure. Avoid unnecessary

removal, installation, disassembly, and replace-

ment.

쐌Be careful not to burn your hands, because each

part on the vehicle is hot after running.

쐌Be sure to tighten fasteners including bolts and

nuts to the specified torque.

쐌Place shop jacks or safety stands at the speci-

fied points.

쐌Before disconnecting electrical connectors of

sensors or units, be sure to disconnect negative

terminal from battery.

IG(H6)-3

GENERAL DESCRIPTION Ignition

2. Spark Plug S141003

A: REMOVAL S141003A18

CAUTION:

All spark plugs installed on an engine, must be

of the same heat range.

Spark plug:

NGK: PLFR6A-11

1. RH SIDE S141003A1805

1) Disconnect battery ground cable.

G6M0095

2) Remove air cleaner lower case. <Ref. to

IN(H6)-5, REMOVAL, Air Cleaner.>

3) Disconnect connector from ignition coil.

4) Remove ignition coil.

B2M4336

5) Remove spark plugs with the spark plug socket.

B2M4331

2. LH SIDE S141003A1806

1) Disconnect battery cables and then remove

battery and battery carrier.

B6M1506

2) Disconnect washer motor connector.

B6M0562B

3) Remove the two bolts which hold the washer

tank, then take the tank away from the working

area.

B2M2023

4) Disconnect connector from ignition coil.

5) Remove ignition coil.

B2M4332

IG(H6)-4

SPARK PLUG

Ignition

6) Remove spark plug with the spark plugs socket.

B2M4333

B: INSTALLATION S141003A11

1. RH SIDE S101003A1105

Install in the reverse order of removal.

Tightening torque (Spark plug):

21 N·m (2.1 kgf-m, 15 ft-lb)

CAUTION:

The above torque should be only applied to

new spark plugs without oil on their threads.

In case their threads are lubricated, the torque

should be reduced by approximately 1/3 of the

specified torque in order to avoid over-stress-

ing.

Tightening torque (Ignition coil):

16 N·m (1.6 kgf-m, 12 ft-lb)

2. LH SIDE S141003A1106

Install in the reverse order of removal.

Tightening torque (Spark plug):

21 N·m (2.1 kgf-m, 15 ft-lb)

CAUTION:

The above torque should be only applied to

new spark plugs without oil on their threads.

In case their threads are lubricated, the torque

should be reduced by approximately 1/3 of the

specified torque in order to avoid over-stress-

ing.

Tightening torque (Ignition coil):

16 N·m (1.6 kgf-m, 12 ft-lb)

C: INSPECTION S141003A10

Check electrodes and inner and outer porcelain of

plugs, noting the type of deposits and the degree

of electrode erosion.

B2M4334A

(A) Electrode gap

(B) Carbon accumulation or wear

(D) Damage

(E) Damaged gasket

1) Normal

Brown to grayish-tan deposits and slight electrode

wear indicate correct spark plug heat range.

G6M0087

2) Carbon fouled

Dry fluffy carbon deposits on insulator and elec-

trode are mostly caused by slow speed driving in

city, weak ignition, too rich fuel mixture, dirty air

cleaner, etc.

It is advisable to replace with plugs having hotter

heat range.

G6M0088

IG(H6)-5

SPARK PLUG Ignition

3) Oil fouled

Wet black deposits show excessive oil entrance

into combustion chamber through worn rings and

pistons or excessive clearance between valve

guides and stems. If same condition remains after

repair, use a hotter plug.

G6M0089

4) Overheating

White or light gray insulator with black or gray

brown spots and bluish burnt electrodes indicate

engine overheating. Moreover, the appearance

results from incorrect ignition timing, loose spark

plugs, wrong selection of fuel, hotter range plug,

etc. It is advisable to replace with plugs having

colder heat range.

G6M0090

D: CLEANING S141003E56

Clean spark plugs in a sand blast type cleaner.

Avoid excessive blasting. Clean and remove car-

bon or oxide deposits, but do not wear away por-

celain.

If deposits are too stubborn, replace plugs.

E: ADJUSTMENT S141003A01

Correct it if the spark plug gap is measured with a

gap gauge, and it is necessary.

Spark plug gap: L

1.0 —1.1 mm (0.039 —0.043 in)

G6M0091

IG(H6)-6

SPARK PLUG

Ignition

3. Ignition Coil and Ignitor

Assembly S141015

A: REMOVAL S141015A18

Direct ignition type is adopted.

For the order of removal, refer to the removal of

spark plugs.

B: INSTALLATION S141015A11

Install in the reverse order of removal.

Tightening torque:

16 N·m (1.6 kgf-m, 12 ft-lb)

C: INSPECTION S141015A10

Because ignition coil is a direct ignition type, the

resistance cannot be measured in a single unit. For

inspection procedure of ignition system, refer to

the following. <Ref. to EN(H6)-77, IGNITION CON-

TROL SYSTEM, Diagnostics for Engine Starting

Failure.>

IG(H6)-7

IGNITION COIL AND IGNITOR ASSEMBLY Ignition

MEMO:

IG(H6)-8

Ignition IGNITION COIL AND IGNITOR ASSEMBLY

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