lock AUDI A4 1998 B5 / 1.G 01A Transmission Final Drive Gear Set Workshop Manual

39-161

Checking measurements

Checking dimension "r"

- Turn pinion shaft at least 5 turns in both
directions.

If the shims have been correctly selected, the dial indicator should now
display the value of "r" as marked on the ring gear, reading
counterclockwise (red scale), within a tolerance of 0.04 mm. - Insert universal mandrel and carry out check measurement.

- Secure pinion shaft nut using mandrel.
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ge 18 of 31 Final drive
gear set, recommended se
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39-163

- Press left tapered roller bearing outer race for
differential (housing side) with shim S2 into
housing Page 39
-126, Fig. 2
. To perform the
measurement use shim S2* with thickness of
1.00 mm (one 0.80 mm shim and one 0.20 mm
shim).

Note:
For measurement specification, a shim S2 of 1.0
mm thickness is initially inserted which will be
designated S2* in the following. After determining
the backlash S2* will be replaced by the correct
shim S2.

- Press in right tapered roller bearing outer race
for differential (final drive cover side) without
shims, until stop Fig. 8, Page 39
-130
.

- Insert differential into housing. Ring gear is
positioned on right side (cover side).

- Install final drive cover and tighten bolts to 25
Nm (18 ft lb).

- Install special tools VW521/4 locking sleeve and 521/8 bushing on
housing side into differential housing.
- Turn final drive housing so final drive cover faces upward.
Pa
ge 21 of 31 Final drive
gear set, recommended se
quence for ad
justin
g
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.TM02.39.18