Pinion Gear: Adjustments

4 Speed Automatic 01M

Drive pinion, adjusting
Special tools and equipment





- VW 385/17 End dimension plate





- VW 387 Universal dial gauge bracket
- Dial gauge

Conditions:
- Supporting ring for drive pinion bearing is installed and secured.
- Parking lock mechanism and parking lock gear are installed.

Adjusting:





- Place two shims (each 1.5 mm thick) -arrow- onto drive pinion.
- - Place output gear with tapered roller bearing onto drive pinion and tighten hex nut (41 mm AF) to 250 Nm; engage parking lock when performing this step.





- Insert dial gauge -A- and zero with a preload of 1 mm. Move drive pinion up and down. Read play at dial gauge and note (example: 0.93 mm).

Determining shims
The specified bearing preload is achieved if the reading (0.93 mm), the preload of the bearings 0.12 mm and the amount for compression 0.10 mm are deducted from the 2 x 1.5 mm thick shims.

Example:





- Remove output gear. Determine size of shim on basis of table and fit onto drive pinion.
- Re-install output gear, tighten hex nut to 250 Nm and secure with drift.








Table of shims for drive pinion and input gear

Note:
- Different tolerances enable the required shim thickness to be measured precisely.
- Part number: See Parts Supplier.