1997 SUBARU LEGACY transmission

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
B2M1265
5. Operating Cylinder
A: REMOVAL AND INSTALLATION
1) Remove air chamber.

B2M1179B
2) Remove clutch hose from operating cylinder.
CAUTION:
Cover hose joint to prevent clutch fluid from flowing
out.
B2M1263
3) Remove operating cylinder from transmission.
15
2-10SERVICE PROCEDURE
4. Clutch Disc and Cover - 5. Operating Cylinder

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.
19
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






21
2-10DIAGNOSTICS
1. Clutch System

2. Transmission Mounting
1. MT MODEL
B2M0013A

1Pitching stopper


2Rear cushion rubber (AWD)


3Rear cushion rubber (FWD)


4Rear crossmember


5Center crossmember


6Cushion C


7Rear plate


8Front crossmember


9Cushion D


10Spacer


11Front plate
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 33±5 (3.4±0.5, 24.6±3.6)
T2: 37±10 (3.8±1.0, 27±7)
T3: 49±5 (5.0±0.5, 36.2±3.6)
T4: 57±10 (5.8±1.0, 42±7)
T5: 69±15 (7.0±1.5, 51±11)
T6: 137±20 (14±2, 101±14)
3
2-11COMPONENT PARTS
2. Transmission Mounting

2. AT MODEL
B2M1159A

1Pitching stopper


2Rear cushion rubber (FWD)


3Rear cushion rubber (AWD)


4Stopper


5Crossmember
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 25±7 (2.5±0.7, 18.1±5.1)
T2: 26±7 (2.7±0.7, 19.5±5.1)
T3: 37±10 (3.8±1.0, 27±7)
T4: 49±5 (5.0±0.5, 36.2±3.6)
T5: 57±10 (5.8±1.0, 42±7)
T6: 69±15 (7.0±1.5, 51±11)
4
2-11COMPONENT PARTS
2. Transmission Mounting

3. MT MODEL (OUTBACK WITH STEP ROOF)
B2M0714A

1Pitching stopper


2Rear cushion rubber


3Rear crossmember


4Center crossmember


5Cushion C


6Rear plate


7Front crossmember


8Cushion D


9Spacer


10Front plate


11Spacer
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 33±5 (3.4±0.5, 24.6±3.6)
T2: 37±10 (3.8±1.0, 27±7)
T3: 49±5 (5.0±0.5, 36.2±3.6)
T4: 57±10 (5.8±1.0, 42±7)
T5: 69±15 (7.0±1.5, 51±11)
T6: 137±20 (14±2, 101±14)
5
2-11COMPONENT PARTS
2. Transmission Mounting

4. AT MODEL (OUTBACK WITH STEP ROOF)
B2M1158A

1Pitching stopper


2Rear cushion rubber


3Crossmember


4Stopper
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 25±7 (2.5±0.7, 18.1±5.1)
T2: 37±10 (3.8±1.0, 27±7)
T3: 49±5 (5.0±0.5, 36.2±3.6)
T4: 57±10 (5.8±1.0, 42±7)
T5: 69±15 (7.0±1.5, 51±11)
6
2-11COMPONENT PARTS
2. Transmission Mounting

1. General Precaution
1) Remove or install engine and transmission in an area
where chain hoists, lifting devices, etc. are available for
ready use.
2) Be sure not to damage coated surfaces of body panels
with tools or stain seats and windows with coolant or oil.
Place a cover over fenders, as required, for protection.
3) Prior to starting work, prepare the following:
Service tools, clean cloth, containers to catch coolant and
oil, wire ropes, chain hoist, transmission jacks, etc.
4) Lift-up or lower the vehicle when necessary. Make sure
to support the correct positions. (Refer to Chapter 1-3
“General Information”.)
7
2-11SERVICE PROCEDURE
1. General Precaution