Volkswagen Workshop Service and Repair Manuals

Drive pinion shaft: adjust The drive pinion shaft must be adjusted again whenever one of the following components is changed: t  Transmission case t  Converter case t  Driven pinion t  Drive pinion shaft t  Conical roller bearing Adjustment works → Chapter

Special tools and workshop equipment required

t	Universal support to the gauge -VW 387-

t	Final measurement plate -VW 385/37-

t	Tightening punch -VW 407-

t	Pressure disc -VW 447 i-

t

Gauge

t	Adapter 2066 for the gauge

Conditions: l  Disassemble the planetary gear from the ATF pump to and including the big planetary disc → Chapter l  Disassemble the oil sump and the automatic transmission control valve assembly → Chapter Adjustment:

–  Fit the external ring/conical roller bearing without adjusting washers to the converter case –  Insert the drive pinion shaft in the transmission case. –  Place the converter case above and tighten 8 screws to a torque of 30 Nm.

–  Assemble the measurement device and the gauge (measurement scope of 3 mm). –  Place the gauge in "0" with 1 mm of previous tension A -Extension of 100 mm for the 2066 adapter gauge

–  Move the drive pinion shaft upward and downward with a screwdriver put in the driven pinion. –  Read the oscillation indicated in the gauge and write it (in the example: 1.02 mm). Avoid turning the drive pinion shaft during the measurement, because the bearings would seat and the measurement result would be incorrect. Determination of the adjusting washer thickness To reach the previous tension prescribed for this bearing, you must add a constant value pressure (0.18 mm) to the measurement value achieved.

- Measurement value	1.02 mm
+ Pressure (const. value)	0.18 mm
= Adjusting washer thickness	1.20 mm

–  Select the adjusting washers according to the table. Spare part number => Electronic part catalogue

Adjusting washers (mm)
0,10	0,44	0,72
0,20	0,48	0,76
0,24	0,52	0,80
0,28	0,56	0,84
0,32	0,60	0,88
0,36	0,64	0,94
0,40	0,68

If the thickness required for the adjusting washer is larger than the ones indicated in the table, 2 washers can be assembled with a sum of values equal to the necessary thickness value.

–  Disassemble the drive pinion shaft and extract the conical roller bearing external ring from the converter case. A -  Counter-holder, for example Kukko 22/2 B -  Internal extractor 46...58 mm, for example Kukko 21/7 –  Select the adjusting washer or washers according to the Electronic parts catalogue. –  Fit the conical roller bearing external ring to the necessary adjusting washers (in the example: 1.20 mm).