Page 2825 of 2870

5MT-112
MANUAL TRANSMISSION AND DIFFERENTIAL
General Diagnostic
2. DIFFERENTIAL
Symptom Possible cause Remedy
1. Broken differential (case, gear, bear-
ing, etc.)
N
OTE:
Noise will develop and finally it will be-
come impossible to continue to run due to
broken pieces obstructing the gear revo-
lution. (a) Insufficient or improper oil Disassemble the differential and replace
broken components and at the same time
check other components for any trouble,
and replace if necessary.
(b) Use of vehicle under severe condi-
tions such as excessive load and
improper use of clutch Readjust the bearing preload and back-
lash and face contact of gears.
(c) Improper adjustment of taper roller
bearingAdjust.
(d) Improper adjustment of drive pinion
and hypoid driven gear Adjust.
(e) Excessive backlash due to worn dif-
ferential side gear, washer or differential
pinion vehicle under severe operating
conditions. Add recommended oil to specified level.
Do not use the vehicle under severe oper-
ating conditions.
(f) Loose hypoid driven gear clamping
boltsTighten.
2. Differential and hypoid gear noises
Troubles of the differential and hypoid
gear always appear as noise problems.
Therefore noise is the first indication of
the trouble. However noises from the
engine, muffler, tire, exhaust gas, bear-
ing, body, etc. are easily mistaken for the
differential noise. Pay special attention to
the hypoid gear noise because it is easily
confused with other gear noises. There
are the following four kinds of noises.
Gear noise when driving: If noise
increases as vehicle speed increases it
may be due to insufficient gear oil, incor-
rect gear engagement, damaged gears,
etc.
Gear noise when coasting: Damaged
gears due to maladjusted bearings and
incorrect shim adjustment
Bearing noise when driving or when
coasting: Cracked, broken or damaged
bearings
Noise which mainly occurs when turn-
ing: Unusual noise from differential side
gear, differential pinion, differential pinion
shaft, etc. (a) Insufficient oil Lubricate.
(b) Improper adjustment of hypoid driven
gear and drive pinionCheck tooth contact.
(c) Worn teeth of hypoid driven gear and
drive pinionReplace as a set.
Readjust the bearing preload.
(d) Loose roller bearing Readjust the hypoid driven gear to drive
pinion backlash and check tooth contact.
(e) Distorted hypoid driven gear or differ-
ential caseReplace.
(f) Worn washer and differential pinion
shaftReplace.
Page 2826 of 2870

FUJI HEAVY INDUSTRIES LTD. G8080GE5
2004 FORESTER SERVICE MANUAL QUICK REFERENCE INDEX
TRANSMISSION SECTION
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, reas-
sembling, inspection and adjustment of
components and diagnostics for guid-
ance 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 specifi-
cations contained in this manual are
based on the latest product information
available at the time of publication
approval.CONTROL SYSTEM CS
AUTOMATIC TRANSMISSION 4AT
AUTOMATIC TRANSMISSION
(DIAGNOSTIC)4AT(H4SO)
AUTOMATIC TRANSMISSION
(DIAGNOSTIC)4AT(H4DOTC)
AUTOMATIC TRANSMISSION
(DIAGNOSTIC)4AT(H4DOTC 2.5)
MANUAL TRANSMISSION AND
DIFFERENTIAL5MT
CLUTCH SYSTEM CL
Page 2827 of 2870

CLUTCH SYSTEM
CL
Page
1. General Description ....................................................................................2
2. Clutch Disc and Cover ..............................................................................16
3. Flywheel ....................................................................................................19
4. Release Bearing and Lever.......................................................................20
5. Operating Cylinder ....................................................................................24
6. Master Cylinder .........................................................................................26
7. Clutch Pipe and Hose ...............................................................................29
8. Clutch Fluid ...............................................................................................31
9. Clutch Fluid Air Bleeding ...........................................................................32
10. Clutch Pedal ..............................................................................................34
11. Clutch Switch ............................................................................................41
12. General Diagnostic Table..........................................................................42
Page 2828 of 2870
CL-2
CLUTCH SYSTEM
General Description
1. General Description
A: SPECIFICATION
I.D.: Inner diameter
O.D.: Outer diameter Model2.0 L Non-turbo,
2.5 L LHD2.0 L Turbo 2.5 L RHD 2.5 L Turbo
Clutch
coverType Push type Pull type Push type Pull type
Diaphragm set
loadkgf (lb) 580 (1,279) 700 (1,543) 580 (1,279) 800 (1,764)
Clutch
discFacing material Woven (Non asbestos)
O.D.×I.D.×Thic
knessmm (in)Flywheel
side
225×150×3.5
(8.86×5.91×0.138)230×155×3.5
(9.06×6.10×0.138)
Pressure
plate side
Spline O.D. mm (in) 25.2 (0.992), (No. of teeth: 24)
Clutch release lever ratio 1.6 1.7 1.6 1.7
Release bearing Grease-packed self-aligning
Clutch
pedalFull stroke mm (in) 130 — 135 (5.12 — 5.31)
Free play mm (in)4 — 12
(0.16 — 0.47)3 — 13
(0.12 — 0.51)4 — 12
(0.16 — 0.47)
Clutch
discDepth of rivet
head mm (in)Standard 1.3 — 1.9 (0.051 — 0.075)
Limit of sinking 0.3 (0.012)
Limit for run
outmm (in) 0.8 (0.031) at R = 110 (4.33) 1.0 (0.039) at R = 110 (4.33)
Page 2829 of 2870
CL-3
CLUTCH SYSTEM
General Description
B: COMPONENT
1. CLUTCH ASSEMBLY
NON-TURBO MODEL
(1) Clutch release lever dust cover (6) Clutch release bearingTightening torque: N⋅m (kgf-m, ft-lb)
(2) Retainer spring (7) Clutch coverT1: 16 (1.6, 11.6)
(3) Pivot (8) Clutch discT2: 72 (7.3, 52.8)
(4) Clutch release lever (9) Flywheel
(5) Clip
CL-00284
(4)
(2) (1)
(9)(5)
(6)
(7)
(8)(3)
(5)
T2
T1
T1
Page 2830 of 2870
CL-4
CLUTCH SYSTEM
General Description
TURBO MODEL
(1) Clutch release lever dust cover (5) Clutch release bearingTightening torque: N⋅m (kgf-m, ft-lb)
(2) Clutch release lever (6) Clutch coverT1: 16 (1.6, 11.6)
(3) Clutch release lever shaft (7) Clutch discT2: 44 (4.5, 32.5)
(4) Plug (8) FlywheelT3: 72 (7.3, 52.8)
CL-00002
Page 2831 of 2870
CL-5
CLUTCH SYSTEM
General Description
2. CLUTCH PIPE AND HOSE (NON-TURBO MODEL)
LHD MODEL
(1) Operating cylinder (6) Clutch pipeTightening torque: N⋅m (kgf-m, ft-lb)
(2) Washer (7) Master cylinder ASSYT1: 8 (0.8, 5.8)
(3) Clutch hose (8) Clevis pinT2: 15 (1.5, 10.8)
(4) Bracket (9) Snap pinT3: 18 (1.8, 13.0)
(5) Clip (10) LeverT4: 37 (3.8, 27.5)
CL-00107
(8) (7)
(9)(10)
(6)
(5) (4)
T3
T2
T3
(1)
T4
T1
T3
(2)(3)
Page 2832 of 2870
CL-6
CLUTCH SYSTEM
General Description
RHD MODEL
(1) Operating cylinder (7) Master cylinder ASSYTightening torque: N⋅m (kgf-m, ft-lb)
(2) Washer (8) Clevis pinT1: 8 (0.8, 5.8)
(3) Clutch hose (9) Snap pinT2: 15 (1.5, 10.8)
(4) Bracket (10) PedalT3: 18 (1.8, 13.0)
(5) Clamp (11) ClipT4: 25 (2.5, 18.1)
(6) Clutch pipe (12) BracketT5: 37 (3.8, 27.5)
CL-00003
T3
T2
T2
T4(9) (7)
(4)
(11)
(6)
(11) (12)
(5)
(10)
(1)
T5
T1
T3
(2)(3)
(8)