Input shaft, adjusting

WARNING: This page is about a different variant/trim than selected.

(Determining input shaft adjustment shim)

Special tools and equipment

Fig 1: Identifying Special Tools - Input Shaft, Adjusting

Courtesy of VOLKSWAGEN UNITED STATES, INC.

It is only necessary to readjust the input shaft when the following components are replaced:

or the

Adjustment overview. Refer to Adjustment overview

Press tapered roller bearing outer race without shim into transmission housing onto stop, using VW 510.
Install input shaft in clutch housing and assemble transmission housing. Tighten hex head bolts to 25 Nm and then turn 90 ° further.

Fig 2: Identifying Special Tools VW387, VW353 & VW385-17

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Fit measuring appliance and dial indicator in clutch housing (large tapered roller bearing in transmission housing).
Before taking any measurements, rotate input shaft to allow bearings to settle.
Set dial gauge to "0" with 1 mm preload.

NOTE: This preparation is to be repeated for each subsequent measurement, otherwise the gauge will not return to the starting position.

Fig 3: Identifying Special Tools VW387, VW353 & VW385-17

Courtesy of VOLKSWAGEN UNITED STATES, INC.

NOTE: Dial indicator does not return to original position.

Determine thickness of shim from table. Refer to Table of adjustment shims (example 1.175).
Remove input shaft and press tapered roller bearing outer race out of transmission housing using VW 447i.
Press tapered roller bearing outer race together with 1.175 shim into transmission housing using VW 510.
Assemble transmission housing and tighten hex head bolts to 25 Nm and then turn 90 ° further.