1995 SUBARU LEGACY release bearing

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

4. Transmission Case
A: DISASSEMBLY
1. SEPARATION OF TRANSMISSION
B3M0329A
B3M0336A
1) Remove clutch release lever
1and bearing
2. (Refer
to 2-10 clutch.)
G3M0597
2) Remove bearing mounting bolts.
33
3-1SERVICE PROCEDURE
4. Transmission Case

G3M0573
12) Selecting of main shaft rear plate
Using ST, measure the amount A of ball bearing protrusion
from transmission main case surface and select the proper
plate in the following table:
ST 498147000 DEPTH GAUGE
Dimension“A”
mm (in)Part No. Mark
4.00—4.13
(0.1575—0.1626)32294AA040 1
3.87—3.99
(0.1524—0.1571)32294AA050 2
NOTE:
Before measuring, tap the end of main shaft with a plastic
hammer lightly in order to make the clearance zero
between the main case surface and the moving flange of
bearing.
B3M0336A
13) Install clutch release lever
1and bearing
2.
49
3-1SERVICE PROCEDURE
4. Transmission Case

1. Propeller Shaft
A: ON-CAR SERVICE
Check the following points with propeller shaft installed in
vehicle.
1) Joints and connections
Check for any looseness of yoke flange connecting bolts
and center bearing retaining bolts.
G3M0019
2) Splines and bearing locations
Turn propeller shaft by hand to see if abnormal free play
exists at splines. Also move yokes to see if abnormal free
play exists at spiders and bearings.
G3M0020
3) Runout of propeller shaft
Turn rear wheels by hand to check for“runout”of propel-
ler shaft.
Runout:
Limit 0.6 mm (0.024 in)
NOTE:
Measure runout with a dial gauge at the center of front and
rear propeller shaft tubes.
G3M0255
4) Center bearing free play
While holding propeller shaft near center bearing with your
hand, move it up and down, and left and right to check for
any abnormal bearing free play.
B: REMOVAL
NOTE:
Before removing propeller shaft, wrap metal parts with a
cloth or rubber material.
1) Disconnect ground cable from battery.
2) Move selector lever or gear shift lever to“N”.
3) Release the parking brake.
4) Jack-up vehicle and support it with sturdy racks.
5) Remove rear exhaust pipe and muffler.

9
3-4SERVICE PROCEDURE
1. Propeller Shaft

Whine or growl (continuous or
intermittent)
While engine is running with/
without steering turned.Loosened installation of oil pump,
oil pump bracketRetighten.
*8
Abnormal inside of oil pump, hoseReplace oil pump, hose, if the
noise can be heard when running
as well as stand still.
Torque converter growl
air conditioner compression growlRemove power steering pulley
belt and confirm.
Creaking noise (intermittent)
While engine is running with
steering turned.Abnormal inside of gearboxReplace bad parts of gearbox.
Abnormal bearing for steering
shaftApply grease or replace.
*9
Generates when turning steering
wheel with brake (service or park-
ing) applied.If the noise goes off when brake
is released, it is normal.
*10
Vibration
While engine is running with/
without steering turned.
Too low engine speed at startAdjust and instruct customers.
Vane pump aerationFix wrong part.
Vent air.
Damaged valve in oil pump, gear-
boxReplace oil pump, bad parts of
gearbox.
Looseness of play of steering,
suspension partsRetighten.
*8 Oil pump makes whine or growl noise slightly due to its mechanism. Even if the noise can be heard when steering wheel
is turned at stand still there is no abnormal function in the system provided that the noise eliminates when the vehicle is
running.
*9 When stopping with service brake and/or parking brake applied, power steering can be operated easily due to its light
steering effort. If doing so, the disk rotates slightly and makes creaking noise. The noise is generated by creaking between
the disk and pads. If the noise goes off when the brake is released, there is no abnormal function in the system.
*10 There may be a little vibration around the steering devices when turning steering wheel at standstill, even though the com-
ponent parts are properly adjusted and have no defects.
Hydraulic systems are likely to generate this kind of vibration as well as working noise and fluid noise because of com-
bined conditions, i.e., road surface and tire surface, engine speed and turning speed of steering wheel, fluid temperature
and braking condition.
This phenomena does not indicate there is some abnormal function in the system.
The vibration can be known when steering wheel is turned repeatedly at various speeds from slow to rapid step by step
with parking brake applied on concrete road and in“D”range for automatic transmission vehicle.
97
4-3DIAGNOSTICS
1. Power Steering