Input Shaft, Adjusting

Input shaft, adjusting

(Determining input shaft adjustment shim)





Special tools and equipment
^ VW309 Holding plate
^ VW353 Transmission support
^ VW385/17 End measuring plate
^ VW387 Universal dial gauge bracket
^ VW407 Press tool
^ VW433 Press piece

Special tools and equipment





^ VW 801 Holding plate
^ VAG1331 Torque wrench
^ 1 - Kukko 21/7 Internal puller
^ 4 - Kukko 22/1 Counter-support

It is only necessary to readjust the input shaft when the following components are replaced:
^ Transmission housing
^ Clutch housing
^ Input shaft
For the
^ Tapered roller bearings
Adjustment overview
^ Shims of determined thickness are installed for both output shafts





^ Press tapered roller bearing outer race without shim into transmission housing onto stop.
^ Install both output shafts and input shaft in clutch housing and assemble transmission housing. Tighten hex head bolts to 25 Nm and then turn 45° (1/8 turn) further.





^ Mount measuring appliance and dial gauge in clutch housing.





^ Install measuring appliance and dial gauge in clutch 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.

^ Pull input shaft in direction of dial gauge.
^ Read and note clearance indicated on dial gauge (Example: 1.63).
^ Determine thickness of shim from table, Refer to Table of Adjustments





^ Remove input shaft and pull tapered roller bearing outer race out of transmission housing.
A - Counter support, e. g. Kukko 22/2
B - Internal puller 46 to 58 mm, e.g. Kukko 21/7
^ Press tapered roller bearing outer race together with 1.55 shim into transmission housing.
^ Assemble transmission housing and tighten new hex head bolts to 25 Nm and then turn 45° (18° turn) further.