SEAT Workshop Service and Repair Manuals

Adjusting input shaft, through gearbox date 12 01 3

(Determining input shaft shim)

t	The adjusting instructions apply only to gearboxes through gearbox date 12 01 3 (input shaft supported with tapered roller bearings).

t	From gearbox date 13 01 3, the input shaft support has been modified → Chapter. Adjustment is no longer required.

Special tools and workshop equipment required

t	Support plate -VW 309-

t	Gearbox support -VW 353-

t	End dimension plate -VW 385/17-

t	Universal dial gauge bracket -VW 387-

t	Press tool -VW 407-

t	Thrust piece -VW 433-

t	Support plate -VW 801-

t	Torque wrench -V.A.G 1331-

t	Internal puller -1- Kukko 21/7-

t	Counter support -4- Kukko 22/1-

It is necessary to readjust the input shaft only when the following components are renewed: t  Gearbox housing t  Clutch housing t  Input shaft or the t  Tapered roller bearings Adjustment overview → Chapter l  Shims of determined thickness are installed for both output shafts.

–  Press tapered roller bearing outer race without shim into gearbox housing to stop. –  Install both output shafts and input shaft in clutch housing and assemble gearbox housing. Tighten hexagon bolts to specified torque → Item and → Item.

–  Fit 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 step must be repeated for each subsequent measurement, or the dial 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 → Anchor (example 1.55). Part numbers → Electronic parts catalogue (ETKA).

–  Remove gearbox housing and pull tapered roller bearing outer race out of gearbox housing. A -  Counter support, e.g. -Kukko 22/2- B -  Internal puller 46 ... 58 mm, e.g. -Kukko 21/7- –  Press tapered roller bearing outer race together with 1.55 shim into gearbox housing. –  Fit gearbox housing and tighten new hexagon bolts to specified torque → Item and → Item. Table of shims

Bearing play	Shim
Measured value (mm)	Thickness (mm)
1.480 ... 1.524	1.40
1.525 ... 1.574	1.45
1.575 ... 1.624	1.50
1.625 ... 1.674	1.55
1.675 ... 1.724	1.60
1.725 ... 1.774	1.65
1.775 ... 1.824	1.70
1.825 ... 1.874	1.75
1.875 ... 1.924	1.80
1.925 ... 1.974	1.85
1.975 ... 2.024	1.90
2.025 ... 2.074	1.95
2.075 ... 2.124	2.00

Bearing play	Shim
Measured value (mm)	Thickness (mm)
2.125 ... 2.174	2.05
2.175 ... 2.224	2.10
2.225 ... 2.274	2.15
2.275 ... 2.324	2.20
2.325 ... 2.374	2.25

Carrying out check measurement

–  Set up measuring appliance and dial gauge. –  Rotate input shaft so that tapered roller bearings settle. –  Pull input shaft in direction of dial gauge. –  Bearing play should be min. 0.065 ... max. 0.150 mm.