transmission AUDI S4 1995 B5 / 1.G 01E Transmission Bearing House And Torsen Differential Workshop Manual

34-54


Bearing housing, Torsen
differential, end cover, internal
selector mechanism, input
shaft, drive pinion and hollow
shaft, removing and installing
(assembly sequence)

Special tools, testers and auxiliary items
required:

Engine and transmission support VW 540
Drip tray V.A.G 1306
Multi-purpose tool 771/1 with attachments
771/15, 771/37 and stud M8/ M10
Two-arm puller e.g. Kukko 20/10 with 200 mm
long hooks
Mandrel 2064
Clamping sleeve 3116
Thrust piece 3118
Pa
ge 1 of 38 Bearin
g housin
g, Torsen differential, end cover, internal selector mechanism, in
put shaft, drive
pinion and hollow shaft, removi...
11/19/2002 htt
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.TM03.34.5

34-56

Removing

- Secure transmission on engine and transmission support VW 540.
- Place drip tray V.A.G 1306 underneath and drain transmission oil (2 oil
drain plugs).
- Remove release bearing, clutch release lever and guide sleeve
Page 30
-27
.

- Remove bearing housing (arrow) and pull off.
A - M8/M10 stud
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ge 4 of 38 Bearin
g housin
g, Torsen differential, end cover, internal selector mechanism, in
put shaft, drive
pinion and hollow shaft, removi...
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.TM03.34.5

34-59


- Remove locking bolts -A- for selector shaft from transmission housing.
- Mark installation positions of aluminium bolts and steel bolts; do not
interchange.
- Remove 3 bolts -B- for cover for selector shaft, take off cover.
- Pull out selector shaft.

- Lock input shaft by engaging 2 gears (e.g. reverse and 2nd gear) do
this by moving 2 selector plates (arrows).
Pa
ge 7 of 38 Bearin
g housin
g, Torsen differential, end cover, internal selector mechanism, in
put shaft, drive
pinion and hollow shaft, removi...
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
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pair&id=AUDI.B5.TM03.34.5

34-60


- Loosen and unscrew multi-point socket head bolt (arrow -B-) in input
shaft through hole (arrow -A-) in end cover.
- Remove 2 securing bolts (arrow -C-) for end cover for transmission at
supporting plate for needle bearings -arrow D-.
- Take out supporting plate.

- Remove 2 magnets (arrows -A-) and clean.
- Loosen 5 bolts (arrows -B-) for securing end cover for transmission and
remove.
Pa
ge 8 of 38 Bearin
g housin
g, Torsen differential, end cover, internal selector mechanism, in
put shaft, drive
pinion and hollow shaft, removi...
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.TM03.34.5

34-64


- Pull off 6th speed sliding gear, synchro-ring for 6th gear, synchro-hub
for 5th and 6th speed gears and inner race for 5th speed sliding gear.
A - Two arm puller, e.g. Kukko 20/10 with 200 mm long hooks

- Unscrew selector rod locking bolts.
A - 1st and 2nd gear
B - 3rd and 4th gear
C - 5th and 6th gear
D - Reverse gear
- Mark fitting locations of aluminium and steel bolts. (Bolts must not be
interchanged when installing.)
- Drive out dowel sleeves on bearing plate and remove bearing plate
from transmission housing.
- Secure drive pinion relative to hollow shaft e.g. hose tie, to prevent it
falling out.
Pa
ge 12 of 38 Bearin
g housin
g, Torsen differential, end cover, internal selector mechanism, in
put shaft, drive
pinion and hollow shaft, rem...
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
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yp
e=re
pair&id=AUDI.B5.TM03.34.5

34-65

- Separate bearing plate with input shaft, with
drive pinion and hollow shaft and with inner
selector mechanism from transmission housing.

- Remove circlip from selector rod for 1st and 2nd gear and take off
follower -A-.
- Pull out selector rod -B- for 5th and 6th gear.
- Remove follower -C- for reverse gear.

- Pull thrust washer (arrow -A-) for needle bearing for 6th gear off shaft.
- Use right-angled circlip pliers to remove circlip (arrow -B-) for inner
race for cylinder roller bearing.
- Take out inner race (arrow -C-) for cylinder roller bearing (not a press
fit).
Pa
ge 13 of 38 Bearin
g housin
g, Torsen differential, end cover, internal selector mechanism, in
put shaft, drive
pinion and hollow shaft, rem...
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p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
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pair&id=AUDI.B5.TM03.34.5

34-73


- Slide follower -A- for 1st and 2nd gear onto selector rod and secure
with circlips.
- Oil all bearings of input shaft and drive pinion/hollow shaft in
transmission housing and bearing flange as well as selector rods with
gear oil.

Note:
When inserting the complete bearing plate, ensure that the selector rods
align with their mounting points. - Pry used seal for input shaft carefully out of transmission housing with
VW 681.
- Coat sealing surfaces between bearing plate and transmission housing
with sealing paste AMV 188 000 02 or AMV 188 001 02 sealing paste.
- Insert complete bearing plate into transmission housing.
Pa
ge 22 of 38 Bearin
g housin
g, Torsen differential, end cover, internal selector mechanism, in
put shaft, drive
pinion and hollow shaft, rem...
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
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pair&id=AUDI.B5.TM03.34.5

34-74

- Drive in 2 dowel sleeves for bearing
flange/transmission housing.

- Tighten 12 bolts using diagonal sequence to 25
Nm.

Note: - Screw in locking bolts for selector rods.
A - 1st and 2nd gear
B - 3rd and 4th gear
C - 5th and 6th gear
D - Reverse gear
Aluminium and steel bolts must not be interchanged when installing.Tightening torques: for aluminium locking bolts = 50 Nm, and for steel
locking bolts = 70 Nm
Pa
ge 23 of 38 Bearin
g housin
g, Torsen differential, end cover, internal selector mechanism, in
put shaft, drive
pinion and hollow shaft, rem...
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.TM03.34.5

34-85

- Install complete selector shaft.

- Screw locking bolts -A- for selector shaft into transmission housing.
- Aluminium and steel bolts must not be interchanged when installing.
Tightening torques: for aluminium locking bolts = 50 Nm, and for steel
locking bolts = 70 Nm.
- Lightly oil new O-ring for cover for selector shaft and fit.
- Fit cover for selector shaft.
- Apply sealing paste AMV 188 000 02 to bolts -B- (Qty. 3) before
installing and tighten.
- Slide Torsen differential onto splines of hollow shaft.

Parts catalog - Press Torsen differential in direction of arrow, and measure distance
between top edge of bolted end cover and front edge of outer race of
ball bearing for Torsen differential.
- Determine required shim(s) from following table.
Pa
ge 34 of 38 Bearin
g housin
g, Torsen differential, end cover, internal selector mechanism, in
put shaft, drive
pinion and hollow shaft, rem...
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.TM03.34.5

34-88

- Remove protective hose.

- Install release bearing, clutch release lever and
guide sleeve from Page 30
-27
.

- Check that transmission can be shifted through
all gears.

- Fit connecting rod.

- Check oil level in transmission Page 34
-39
.
Pa
ge 38 of 38 Bearin
g housin
g, Torsen differential, end cover, internal selector mechanism, in
put shaft, drive
pinion and hollow shaft, rem...
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.TM03.34.5