Input Gear, Adjusting

Special Tools And Equipment





^ VW 382 Measuring appliance





^ VAG 1332 Torque wrench
^ Dial gauge
^ Torque wrench (commercially available) 0 - 600 Nm (0 - 53 inch lbs.)

Requirements:
- Measure and record friction torque before disassembling.





- Tighten fastener to 100 Nm (74 ft. lbs.) without dished washer and without shim.
A-Torque wrench
B-22 mm socket
The parking lock must be engaged.

- Install parking lock mechanism.
- Remove fastener.





- Measure distance between input gear and tapered roller bearing inner race.
- Insert dial gauge and zero with a preload of 3 mm. Note reading (example 1.00 mm),

Thickness of dished washer 1.50 mm must be added to the reading of = 2.50 mm.

Shim, Determining
Specified bearing preload is achieved if bearing preload of 0.18 mm is deducted from figure obtained from the measurement (dished water + reading) of 2.50 mm.





- Determine shim on basis of table and install on axle shaft. Table of shims.
- Insert axial needle bearing and tighten fastener including dished washer to 250 Nm (184 ft. lbs.).
- Insert axial needle bearing for input shaft before tightening fastener.





Friction Torque, Checking
A-Torque gauge, commercially available 0 - 600 Nm (0 - 53 inch lbs.)
B -Socket (41 mm)
When replacing tapered roller bearing for transmission up to build date 26 04 8:
- Coat bearing with ATF before installation.
^ Friction torque for these bearings is 180 - 220 Nm (6 - 19 inch lbs.) higher than friction value measured before at axle shaft.





Replace bearing beginning with build date 27 04 8
- Install these new tapered roller bearings as delivered without adding grease.





Friction torque is 50 - 170 Nm (4 - 15 inch lbs.) higher than friction value measured before disassembly, at axle shaft.
New bearing has a revised friction value. If bearings are greased specified value can not be attained or torque is too high.