SEAT Workshop Service and Repair Manuals

Differential gear shim: establishing thickness

Pressing tapered roller bearing outer race into clutch housing l  Insert the conical roller bearing outer ring with a 0.65 mm shim into the clutch housing –  Press the gearbox casing directly onto the base of the bearing using the kit (case) -U-40200A- .   Note Inner and outer tapered roller bearing races are paired. Do not interchange!

Fitting the outer ring of the roller bearing into the gearbox casing –  Support the gearbox casing on the base -U-40450/1- with the adapter -U-40450/11-, socket -U-40450/4- and as a base for connecting the inner ring, the installation tool -U-10103-, adapter -U-40200/10- and the adapter -U-40200/5-. –  Place the differential on the clutch housing. –  Fit onto the gearbox casing and tighten the 5 bolts. Tightening torque → Item –  Press the differential towards the gearbox casing rotating it 8 times. –  Fit the support -T20020- and the measurement tool together onto the gearbox casing.

–  Attach dial gauge and set to „0“ with 1 mm preload. A -  30 mm gauge extension –  Move the differential upwards and downwards, read the play indicated by the gauge and note it (in the example: 0.70 mm). Determining thickness of shim: The specified bearing preload is obtained by adding a constant value for preload (0.25 mm) to the reading obtained.

Example:
Average value	0.70 mm
+ Preload (constant)	0.25 mm
Thickness of shim =	0.95 mm

–  Determine the shim or the shims using the table. Depending on version → Current Spare parts catalogue . –  Remove the gearbox casing.

Pulling outer race for tapered roller bearing out of gearbox housing –  Use the extractor kit -T20140- with adaptor -T20140/30-. –  Fit the shim or shims according to the table, (the shim of the calculated measurement is fitted, or the closest larger one). –  Re-insert the outer ring and tighten the gearbox casing with the correct torque.

Fitting the outer ring of the roller bearing into the gearbox casing –  Support the gearbox casing on the base -U-40450/1- with the adapter -U-40450/11-, socket -U-40450/4- and as a base for connecting the inner ring, the installation tool -U-10103-, adapter -U-40200/10- and the adapter -U-40200/5-.