torque AUDI A6 1998 C5 / 2.G 01E Transmission Final Drive Pinion And Ring Gear Adjustment Workshop Manual

Universal support V.A.G 1359/2
Dial gauge extension 30 mm
Dial gauge
Torque gauge 0-600 Ncm
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pinion and rin
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39-154

Drive pinion, adjusting


Note:

Before adjusting drive pinion, adjust ring gear
(determine total shim thickness "S
total
" for
shims "S1" + "S2") Page 39
-163
.

The drive pinion only has to be readjusted if the
final drive set (ring gear and drive pinion), the
tapered roller bearings for the drive pinion or
the final drive housing are replaced. Adjustment
overview Page 39
-150
.

Do not additionally oil new tapered roller
bearings for friction torque measurement. The
bearings have already been treated with a
special oil by the manufacturer.

Determine thickness of shim "S3"
(Setting preload of tapered roller bearings for
drive pinion)

- Mount final drive onto engine and transmission
support Page 39
-108
.

- Pull outer race of large tapered roller bearing into housing (without
shim).
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39-155


- Pull outer race for small tapered roller bearing into housing.
- Lubricate outer race with oil and fit using press tool VW 408 A and
thrust plate 30-205.

CAUTION!
Wear protective gloves.
Note: - Insert drive pinion without spacer sleeve.
-
Heat inner race for tapered roller bearing to approx. 100 C and fit onto
drive pinion.
Do not additionally oil new tapered roller bearings for friction torque
measurement. The bearings have already been treated with a special
oil by the manufacturer. Only install spacer sleeve for final friction torque measurement (after
determining shim "S3").
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pinion and rin
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39-156


- Secure retainer 3304 with two M8 x 30 hex bolts.
- Support final drive when tightening nut (e.g. using universal support
V.A.G 1359/2 in conjunction with transmission jack V.A.G 1383 A).
- Fit a new drive pinion nut.
- Tighten drive pinion nut just far enough so that no play can be felt at
drive pinion.
- Gradually increase tightening torque, checking friction torque at regular
intervals, unti specified friction torque is obtained.

The following friction torques should be set: 1) run at least 50 km (30 miles) A - Torque gauge, commercially available, 0-600 Ncm
B - Extension with 32 mm socketNew bearings
Used bearings
1)
200-250 Ncm 30-60 Ncm
Pa
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pinion and rin
g gear, ad
justin
g
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39-161

- Remove drive pinion and outer race of large
tapered roller bearing and install together with
measured shims "S3" and spacer sleeve from
Page 39
-139
.
Install inner race of small tapered roller bearing
and tighten nut for drive pinion until specified
friction torque is obtained
Fig. 11 , Page 39
-144
.

Note:

Do not additionally oil new tapered roller
bearings for friction torque measurement. The
bearings have already been treated with a
special oil by the manufacturer.
Increase tightening torque slowly and check
friction torque at regular intervals, if the
specified friction torque is exceeded, the spacer
sleeve must be replaced and the adjustment
repeated. A spacer sleeve which has been
compressed too much cannot be reused.

- Set to following friction torques:

New bearings
Used bearings
1)
200-250 Ncm 30-60 Ncm
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pinion and rin
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justin
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39-163

Ring gear, adjusting

(Adjusting differential)
Repairs after which the ring gear has to be
adjusted Page 39
-150
, Adjustment overview

Note:

Differential tapered roller bearings are low
friction bearings. Therefore the friction torque
only has a limited use as a check. Correct
adjustment is only possible by determining the
total shim thickness "S
total
."

Do not additionally oil new tapered roller
bearings for friction torque measurement. The
bearings have already been treated with a
special oil by the manufacturer.

Determining total shim thickness "S
total
" for
shims "S1" + "S2"
(Setting preload of tapered roller bearing for
differential)

Drive pinion removed or ring gear dismantled
from differential housing

- Pull out drive flange oil seal with lever.
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pinion and rin
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39-168

Measuring friction torque (check)

Drive pinion removed
Differential fitted with shims "S1*" and "S2*"

Friction torque specifications: 1) run at least 50 km (30 miles)
Note: - Fit torque gauge 0-600 Ncm -A- onto differential.
- Read friction torque.New bearings
Used bearings
1)
150-300 Ncm 30-60 Ncm
Differential tapered roller bearings are low friction bearings. Therefore
the friction torque only has a limited use as a check. Correct
adjustment is only possible by determining the total shim thickness
"S
total
."
Do not additionally oil new tapered roller bearings for friction torque
measurement. The bearings have already been treated with a special
oil by the manufacturer. If the final drive set (drive pinion and ring gear) is being re-adjusted,
the adjustment of the drive pinion should be performed now, and the
Pa
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pinion and rin
g gear, ad
justin
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