1996 SUBARU LEGACY clutch

G2M0248
2. CLUTCH COVER
Visually check for the following items without
disassembling, and replace or repair if defective.
1) Loose thrust rivet.
2) Damaged or worn bearing contact area at center of
diaphragm spring.
G2M0249
3) Damaged or worn disc contact surface of pressure
plate.
4) Loose strap plate setting bolt.
5) Worn diaphragm sliding surface.
G2M0250
3. FLYWHEEL
CAUTION:
Since this bearing is grease sealed and is of a nonlu-
brication type, do not wash with gasoline or any sol-
vent.
1) Damage of facing and ring gear
If defective, replace flywheel.
G2M0251
2) Smoothness of rotation
Rotate ball bearing applying pressure in thrust direction.
If noise or excessive play is noted, replace ball bearing as
follows:
(1) Drive out ball bearing from flywheel.
(2) Press bearing into flywheel until bearing end sur-
face is flush with clutch disc contact surface of flywheel.
Do not press inner race.
ST 899754112 SNAP RING PRESS
9
2-10SERVICE PROCEDURE
4. Clutch Disc and Cover

B2M0331A
B2M0332A
C: INSTALLATION
1) Install flywheel.
2) Install ST, and tighten the flywheel attaching bolts to the
specified torque.
ST 498497100 CRANKSHAFT STOPPER
Tightening torque:
72±3 N⋅m (7.3±0.3 kg-m, 52.8±2.2 ft-lb)
NOTE:
Tighten flywheel installing bolts gradually. Each bolt should
be tightened to the specified torque in a crisscross fashion.
G2M0253
3) Insert ST into the clutch disc and install them on the
flywheel by inserting the ST end into the pilot bearing.
ST 499747100 CLUTCH DISC GUIDE
G2M0254
4) Install clutch cover on flywheel and tighten bolts to the
specified torque.
NOTE:
When installing the clutch cover on the flywheel, position
the clutch cover so that there is a gap of 120°or more
between“0”marks on the flywheel and clutch cover. (“0”
marks indicate the directions of residual unbalance.)
Note the front and rear of the clutch disc when installing.
Tighten clutch cover installing bolts gradually. Each bolt
should be tightened to the specified torque in a crisscross
fashion.
Tightening torque:
15.7±1.5 N⋅m (1.6±0.15 kg-m, 11.6±1.1 ft-lb)
5) Remove ST.
ST 499747100 CLUTCH DISC GUIDE
10
2-10SERVICE PROCEDURE
4. Clutch Disc and Cover

1. Clutch System
Condition Possible cause and testing Corrective action
1. Clutch slip-
pageIt is hard to perceive clutch slippage in the early stage, but pay attention to the following symptoms.
(a) Engine revs up when shifting.
(b) High speed driving is impossible; especially rapid acceleration impossible and vehicle speed does not increase in
proportion to an increase in engine speed.
(c) Power falls, particularly when ascending a slope, and there is a smell of burning 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) No clutch pedal play Readjust.
(b) No release lever end play Readjust.
(c) Clutch facing smeared by oil Replace.
(d) Worn clutch facing Replace.
(e) Deteriorated diaphragm spring Replace.
(f ) Distorted pressure plate or flywheel Correct or replace.
(g) Defective release bearing holder Correct or replace.
(h) Defective pedal and cable system Correct or 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 the
this sort is due to defective synchronization mechanism, carry out the test as described after.
Method of testing: Refer to DIAGNOSTIC DIAGRAM on page after.
It may be judged as insufficient disengagement of clutch if any noise occurs during this test.
(a) Excessive clutch pedal play Readjust.
(b) Excessive clutch release lever play Readjust.
(c) Worn or rusty clutch disc hub spline Replace clutch disc.
(d) Excessive deflection of clutch disc facing Correct or replace.
(e) Seized crankshaft pilot needle bearing Replace.
(f ) Malfunction of pedal and cable system Correct or replace.
(g) Cracked clutch disc facing Replace.
(h) Sticked clutch disc (smeared by oil or water) Replace.
3. Clutch chat-
ters.Clutch chattering is an unpleasant vibration to the whole body when the vehicle is just started with clutch partially
engaged.
(a) Improper clutch cable routing Correct.
(b) Adhesion of oil on the facing Replace clutch disc.
(c) Weak or broken torsion spring Replace clutch disc.
(d) Defective facing contact or excessive disc Replace clutch disc defection.
(e) Warped pressure plate or flywheel Correct or replace.
(f ) Loose disc rivets Replace clutch disc.
(g) Loose engine mounting Retighten or replace mounting.
(h) Improper adjustment of pitching stopper Adjustment.
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2-10DIAGNOSTICS
1. Clutch System

Condition Possible cause and testing Corrective action
4. Noisy
clutchExamine whether the noise is generated when the clutch is disengaged, engaged, or partially engaged.
(a) Broken, worn or unlubricated release bearing Replace release bearing.
(b) Insufficient lubrication of pilot bearing Apply grease.
(c) Loose clutch disc hub Replace clutch disc.
(d) Loose torsion spring retainer Replace clutch disc.
(e) Deteriorated or broken torsion spring Replace 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 clutch disc.
(b) Deteriorated cushioning spring Replace clutch disc.
(c) Worn or rusted spline of clutch disc or mainTake off rust, apply grease or replace clutch shaft disc or
mainshaft.
(d) Deteriorated or broken torsion spring Replace clutch disc.
(e) Loose engine mounting Retighten or replace mounting.
(f ) Deteriorated diaphragm spring Replace.
12
2-10DIAGNOSTICS
1. Clutch System

1. DIAGNOSTIC DIAGRAM OF CLUTCH DRAG
Test (1)
Disengage the clutch and shift quickly from neutral to reverse in idling condition.
Gear noise
Ye s
No
Sufficient disengagement of clutch
Test (2)
Shift to reverse after 0.5 to 1.0 sec of clutch disengagement.
Gear noise
Ye s
No
Defective transmission
or excessive clutch drag torque
[Cause]
1. Defective pilot bearing
2. Excessive disc deflection
3. Defective transmission
4. Defective clutch disc hub spline
Test (3)
Shift the gear N,R several times during disengaging clutch as test (2).
Gear noise
Ye s
No
Sticked clutch disc
[Cause]
1. Clutch disc smeared by oil
2. Clutch disc smeared by rust
3. Defective clutch disc hub spline
Clutch drags.
[Cause]
1. Cracked clutch disc facing
2. Damaged or worn clutch cover
3. Malfunction of clutch release system
4. Insufficient clutch release amount
5. Excessive clutch pedal play






13
2-10DIAGNOSTICS
1. Clutch System

(2) Disconnect the following cables.


1Accelerator cable


2Cruise control cable (With cruise control)


3Clutch release spring (MT model)


4Clutch cable (MT model)
B2M0018B
G2M0280G2M0279
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2-11SERVICE PROCEDURE
2. Engine

G2M0299
20) Remove bolts which hold upper side of transmission to
engine.
G2M0300
21) Remove engine from vehicle.
(1) Slightly raise engine.
(2) Raise transmission with garage jack.
(3) Move engine horizontally until mainshaft is with-
drawn from clutch cover.
(4) Slowly move engine away from engine compart-
ment.
CAUTION:
Be careful not to damage adjacent parts or body pan-
els with crank pulley, oil pressure gauge, etc.
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2-11SERVICE PROCEDURE
2. Engine

11) Install front exhaust pipe and center exhaust pipe.
12) Connect hoses, connectors and cables.
(1) Connect the following hoses.
Fuel delivery hose, return hose and evaporation
hose
Heater inlet and outlet hoses
Brake booster vacuum hose
(2) Connect the following connectors.
Engine ground terminal
Engine harness connectors
Front oxygen sensor connector
Rear oxygen sensor connector
Alternator connector and terminal
A/C compressor connectors (With A/C)
(3) Connect the following cables.
Accelerator cable
Cruise control cables (With cruise control)
Clutch cable
Clutch release spring
CAUTION:
After connecting each cable, adjust them.
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13) Install air intake system.
(1) Install air cleaner element.
(2) Install air intake duct with air cleaner upper cover.
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(3) Connect connector to mass air flow sensor.
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2-11SERVICE PROCEDURE
2. Engine