Subaru 2001 Forester Manual de usuario

This service manual has been prepared

to provide SUBARU service personnel

with the necessary information and data

for the correct maintenance and repair of

SUBARU vehicles.

This manual includes the procedures for

maintenance, disassembling, reassem-

bling, inspection and adjustment of com-

ponents 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 genu-

ine parts.

All information, illustration and specifica-

tions contained in this manual are based

on the latest product information avail-

able at the time of publication approval.

FUJI HEAVY INDUSTRIES LTD.

2001 FORESTER SERVICE MANUAL QUICK REFERENCE INDEX

ENGINE2 SECTION

G8050GE3

IGNITION

IG(DOHC TURBO)

Page

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

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

3. Ignition Coil and Ignitor Assembly...............................................................8

1. General Description S181001

A: SPECIFICATIONS S181001E49

Item Designation

Ignition coil

and ignitor

assembly

Model FK0140

Manufacturer DIAMOND

Spark plug Type and manufacturer PFR6G .......... NGK

Thread size mm 14, P = 1.25

Spark gap mm (in) 0.7 —0.8 (0.028 —0.031)

IG(DOHC TURBO)-2

GENERAL DESCRIPTION

Ignition

B: COMPONENT S181001A05

EN0853

(1) Spark plug

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

T1: 21 (2.1, 15)

T2: 16 (1.6, 11.7)

C: CAUTION S181001A03

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(DOHC TURBO)-3

GENERAL DESCRIPTION Ignition

2. Spark Plug S181003

A: REMOVAL S181003A18

CAUTION:

All spark plugs installed on an engine, must be

of the same heat range.

Spark plug:

NGK: PFR6G

1. RH SIDE S181003A1801

1) Disconnect battery ground cable.

G6M0095

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

IN(DOHC TURBO)-7, REMOVAL, Air Cleaner.>

3) Disconnect connector from ignition coil.

EN0854

4) Remove ignition coil.

EN0855

5) Remove spark plugs with the spark plug socket.

EN0856

2. LH SIDE S181003A1802

1) Disconnect battery cables, and then remove

battery and battery carrier.

G6M0095

2) Disconnect washer motor connector (A).

B6M0562D

3) Disconnect rear window glass washer hose

from washer motor, then plug connection with a

suitable cap.

IG(DOHC TURBO)-4

SPARK PLUG

Ignition

4) Remove the two bolts which hold the washer

tank, then take the tank away from the working

area.

B2M2023

5) Disconnect connector from ignition coil.

EN0857

6) Remove ignition coil.

EN0858

7) Remove spark plug with the spark plugs socket.

EN0859

B: INSTALLATION S181003A11

1. RH SIDE S181003A1101

1) Install in the reverse order of removal.

Tightening torque (Spark plug):

21 N·m (2.1 kgf-m, 15 ft-lb)

Tightening torque (Ignition coil):

16 N·m (1.63 kgf-m, 11.8 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.

2. LH SIDE S181003A1102

1) Install in the reverse order of removal.

Tightening torque (Spark plug):

21 N·m (2.1 kgf-m, 15 ft-lb)

Tightening torque (Ignition coil):

16 N·m (1.63 kgf-m, 11.8 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.

IG(DOHC TURBO)-5

SPARK PLUG Ignition

C: INSPECTION S181003A10

Check electrodes and inner and outer porcelain of

plugs, noting the type of deposits and the degree

of electrode erosion.

S6M0420A

(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

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

IG(DOHC TURBO)-6

SPARK PLUG

Ignition

D: ADJUSTMENT S181003A01

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.

After cleaning spark plugs, recondition firing sur-

face of electrodes with file. Then correct the spark

plug gap using a gap gauge.

Spark plug gap: L

0.7 —0.8 mm (0.028 —0.031 in)

S6M0412A

NOTE:

Replace with new spark plug if this area is worn to

“ball”shape.

IG(DOHC TURBO)-7

SPARK PLUG Ignition

3. Ignition Coil and Ignitor

Assembly S181015

A: REMOVAL S181015A18

Direct ignition type has been adopted. Refer to the

“Spark Plug Removal”for removal procedure.

<Ref. to IG(DOHC TURBO)-4, REMOVAL, Spark

Plug.>

B: INSTALLATION S181015A11

Install in the reverse order of removal.

Tightening torque:

16 N·m (1.63 kgf-m, 11.8 ft-lb)

C: INSPECTION S181015A10

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(DOHC TURBO)-72,

IGNITION CONTROL SYSTEM, Diagnostics for

Engine Starting Failure.>

IG(DOHC TURBO)-8

IGNITION COIL AND IGNITOR ASSEMBLY

Ignition

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