Adjusting output shaft

(Determining shim for output shaft)

Special tools and workshop equipment required

• ◆ VW 387 Universal dial gauge bracket
• ◆ VW 385/17 End measuring plate
• ◆ VW 512 Press disk
• ◆ 3114/2 Straightening tool
• ◆ VW 407 Press tool
• ◆ V.A.G 1331 Torque wrench
• ◆ Dial gauge

Special tools and workshop equipment required

• ◆ 1 - Internal puller Kukko 21/6
• ◆ 4 - Kukko 22/2 Counter support

It is necessary to readjust the output shaft when the following components are renewed:

• ◆ Final drive
• ◆ Clutch housing

or

• ◆ Taper roller bearing

Adjustment overview

• ‒ Press small taper roller bearing outer race together with a 0.65 mm thick shim fully into clutch housing .
• ‒ Insert output shaft and tighten nuts for bearing support to 25 Nm, then turn 90° further.

• ‒ → Mount dial gauge (3 mm measuring range) and set to "0" with 1 mm preload.
• ‒ Move output shaft up and down and note dial gauge reading (example: 0.30 mm).

Determining thickness of shim

The specified bearing preload is obtained by adding
a constant preload figure of (0.20 mm)
to the reading obtained (0.30 mm)
and the thickness of the shim installed (0.65 mm).

Example:

• ‒ Remove output shaft and pull out small taper roller bearing outer race => Page 35-36

The following adjustment shims are available:

Varying tolerances make it possible to obtain the exact shim thickness required.

• ‒ Press in small taper roller bearing outer race together with the correct shim (in example 1.15 mm) ( ) and install output shaft. Tighten bearing support nuts in clutch housing to 25 Nm and then turn 90° further.