2004 SUBARU FORESTER replace disc

CL-18
CLUTCH SYSTEM
Clutch Disc and Cover
2. CLUTCH COVER
NOTE:
Visually check for the following items without disas-
sembling, and replace or repair if defective.
1) Loose thrust rivet.
2) Damaged or worn bearing contact area at center
of diaphragm spring.
(A) Thrust rivet
(B) Diaphragm spring
CL-00018
(A)
(B)

CL-19
CLUTCH SYSTEM
Flywheel
3. Flywheel
A: REMOVAL
1) Remove the transmission assembly. 5MT-32, REMOVAL, Manual Transmission As-
sembly.>
2) Remove the clutch cover and clutch disc. to CL-16, REMOVAL, Clutch Disc and Cover.>
3) Using the ST, remove the flywheel.
ST 498497100 CRANKSHAFT STOPPER
B: INSTALLATION
1) Install the flywheel and ST.
ST 498497100 CRANKSHAFT STOPPER2) Tighten the flywheel attaching bolts to the spec-
ified torque.
NOTE:
Tighten the flywheel installing bolts gradually. Each
bolt should be tightened to the specified torque in a
crisscross fashion.
Tightening torque:
72 N
⋅m (7.3 kgf-m, 52.8 ft-lb)
3) Install the clutch disc and cover. INSTALLATION, Clutch Disc and Cover.>
4) Install the transmission assembly. 36, INSTALLATION, Manual Transmission Assem-
bly.>
C: INSPECTION
CAUTION:
Since this bearing is grease sealed and is of a
non-lubrication type, do not wash with gasoline
or any solvent.
1) Damage of facing and ring gear
If defective, replace the flywheel.
2) Smoothness of rotation
Rotate the ball bearing applying pressure in thrust
direction.
3) If noise or excessive play is noted, replace the
flywheel.
(A) Flywheel
CL-00019ST (A)
CL-00020ST
(A) Flywheel
(B) Ring gear
CL-00021
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
CL-00022
(B)
(A)

CL-41
CLUTCH SYSTEM
Clutch Switch
11.Clutch Switch
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Remove the instrument panel lower cover.
3) Disconnect the connector from clutch switch.
4) Remove the clutch switch.
B: INSTALLATION
1) Install the clutch switch and clutch pedal stopper
so that the gap between them is 0 mm (0 in).
Tightening torque:
8 N
⋅m (0.8 kgf-m, 5.8 ft-lb)
2) Measure stroke of clutch pedal.
Specified clutch pedal full stroke: A
130 — 135 mm (5.12 — 5.31 in)
3) If the clutch pedal stroke is out of specification,
adjust the stroke. Clutch Pedal.>
4) Connect clutch switch connector.
C: INSPECTION
Check the clutch switch continuity. If continuity is
not as specified, replace the switch.
(1) Disconnect the clutch switch connector.
(2) Measure the resistance between 1 and 2 of
switch terminal.
Terminals/Specified resistance
When clutch pedal depressed:
1 — 2/Less than 1
Ω
Terminals/Specified resistance
When clutch pedal not depressed:
1 — 2/More than 1 M
Ω
D: ADJUSTMENT
Refer to “ADJUSTMENT” for clutch pedal. CL-37, ADJUSTMENT, Clutch Pedal.>
(A) Clutch switch
(B) Stopper
(C) 0 mm (0 in)
(A) Clutch (Full stroke condition)
(B) Scale
(C) Seat
(A)
(B) (C)
CL-00133
CL-00078(A)(B)(C)A
CL-00084
21

CL-42
CLUTCH SYSTEM
General Diagnostic Table
12.General Diagnostic Table
A: INSPECTION
1. CLUTCH
Symptom Possible cause Corrective
1. Clutch slippage.
It is hard to perceive clutch slippage in
the early stage, but pay attention to the
following symptoms
 Engine speed up when shifting.
 High speed driving is impossible; espe-
cially rapid acceleration impossible and
vehicle speed does not increase in pro-
portion to an increase in engine speed.
 Power falls, particularly when ascend-
ing a slope, and there is a smell of burn-
ing of the clutch facing.
 Method of testing: Put the vehicle in
stationary condition with parking brake
fully applied. Disengage the clutch and
shift the transmission gear into the first.
Gradually allow the clutch to engage
while gradually increasing the engine
speed. The clutch function is satisfactory
if the engine stalls. However, the clutch is
slipping if the vehicle does not start off
and the engine does not stall.(a) Clutch facing smeared by oil Replace.
(b) Worn clutch facing Replace.
(c) Deteriorated diaphragm spring Replace.
(d) Distorted pressure plate or flywheel Replace.
(e) Defective release bearing holder Replace.
2. Clutch drags.
As a symptom of this trouble, a harsh
scratching noise develops and control
becomes quite difficult when shifting
gears. The symptom becomes more
apparent when shifting into the first gear.
However, because much trouble of this
sort is due to defective synchronization
mechanism, carry out the test as
described after.
 Method of testing: DIAGNOSTIC DIAGRAM OF CLUTCH
DRAG, INSPECTION, General Diagnos-
tic Table.>
It may be judged as insufficient disen-
gagement of clutch if any noise occurs
during this test.(a) Worn or rusty clutch disc hub spline Replace the clutch disc.
(b) Excessive deflection of clutch disc
facingReplace.
(c) Malfunction of crankshaft pilot bearing Replace.
(d) Cracked clutch disc facing Replace.
(e) Stuck clutch disc (smeared by oil or
water)Replace.
3. Clutch chatters.
Clutch chattering is an unpleasant vibra-
tion to the whole body when the vehicle is
just started with clutch partially engaged.(a) Adhesion of oil on the facing Replace the clutch disc.
(b) Weak or broken torsion spring Replace the clutch disc.
(c) Defective facing contact or excessive
disc wornReplace the clutch disc defection.
(d) Warped pressure plate or flywheel Replace.
(e) Loose disc rivets Replace the clutch disc.
(f) Loose engine mounting Retighten or replace the mounting.
(g) Improper adjustment of pitching stop-
perAdjustment.

CL-43
CLUTCH SYSTEM
General Diagnostic Table
2. CLUTCH PEDAL
3. DIAGNOSTIC DIAGRAM OF CLUTCH DRAG
4. Noisy clutch
Examine whether the noise is generated
when the clutch is disengaged, engaged,
or partially engaged.(a) Broken, worn or unlubricated release
bearingReplace the release bearing.
(b) Insufficient lubrication of pilot bearing Replace.
(c) Loose clutch disc hub Replace the clutch disc.
(d) Loose torsion spring retainer Replace the clutch disc.
(e) Deteriorated or broken torsion spring Replace the clutch disc.
5. Clutch grabs.
When starting the vehicle with the clutch
partially engaged, the clutch engages
suddenly and the vehicle jumps instead
of making a smooth start.(a) Grease or oil on facing Replace the clutch disc.
(b) Deteriorated cushioning spring Replace the clutch disc.
(c) Worn or rusted spline of clutch disc or
main shaftTake off rust, apply grease or replace the
clutch disc or main shaft.
(d) Deteriorated or broken torsion spring Replace the clutch disc.
(e) Loose engine mounting Retighten or replace the mounting.
(f) Deteriorated diaphragm spring Replace.
Trouble Corrective action
Insufficient pedal play Adjust pedal play.
Clutch pedal free play insufficient Adjust pedal free play.
Excessively worn and damaged pedal shaft and/or bushing Replace the bushing and/or shaft with a new one.
Step Check Yes No
1 CHECK GEAR NOISE.
1) Start the engine.
2) Disengage the clutch and shift quickly from
neutral to reverse in idling condition.Is there any abnormal noise
from the transmission gear?Go to step 2.Clutch is normal.
2 CHECK GEAR NOISE.
Disengage the clutch at idle and shift from neu-
tral to reverse within 0.5 — 1.0 seconds.Is there any abnormal noise
from the transmission gear?Go to step 3.Defective trans-
mission or exces-
sive clutch drag
torque. Inspect the
pilot bearing,
clutch disc, trans-
mission and clutch
disc hub spline.
3 CHECK GEAR NOISE.
1) Disengage the clutch at idle and shift from
neutral to reverse within 0.5 — 1.0 seconds.
2) With the clutch disengaged, shift from N to
R, R to N several times.Is there any abnormal noise
from the transmission gear?Defect in clutch
disengaging.
Inspect the clutch
disc, clutch cover,
clutch release, and
clutch pedal free
play.Clutch and fly-
wheel seizure.
Inspect the clutch
disc, spline of
clutch disc hub. Symptom Possible cause Corrective