Seat Leon >> Differential: Adjust

Special tools and workshop equipment required

  • End dimension plate - VW 385/17-
  • Universal dial gauge bracket - VW 387-
  • Tightening plate - VW 402-
  • Tightening plate - VW 401-
  • Die - VW 408-
  • Die - VW 412-

Final drive - differential

  • Thrust plate - 30-205-
  • Tube for releasing - 30-14-
  • Tube element - 2040-
  • Pipe - 3259-
  • Torque wrenches - V.A.G 1331-
  • Not suitable: tools 1-4
  • Dial gauge - VAS 6080A-

 

  • Internal puller - VAS 251 615- or, e.g. internal puller - Kukko 21/7-

Final drive - differential

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

  • Gearbox housing
  • Clutch housing or
  • Differential cage

or the

  • Differential tapered roller bearing

 

  • Insert the outer ring of the roller bearing (crown side) into the gearbox casing

Note Inner and outer tapered roller bearing races are paired. Do not interchange!

  • Press tapered roller bearing outer race (opposite gear wheel) with no shim into gearbox housing.
  • Insert differential in gearbox housing.
  • Fit clutch housing and tighten 5 bolts to specified torque.

  • Fit the gauge and set to "0" with a pretension of 1 mm.

A - 30 mm gauge extension

  • Set dial gauge to "0" with 1 mm preload for bearing.
  • Move the differential up and down while reading the measurement on the gauge and noting the results (for example: 1.50 mm raised).

Determining thickness of shim.

The specified bearing preload is obtained by adding a constant value for preload (0.35 mm) to the reading obtained.

As an example:

Final drive - differential

  • Remove clutch housing and press out tapered roller bearing outer race -A-.

B - Internal puller - VAS 251 615- , or e.g. -Kukko 21/7-

  • Allocate the shim(s) using - Electronic parts catalogue (ETKA) .

The existence of different thickness shims will enable the selection of the correct thickness required.

If the size of the shim required is larger than those listed in - Electronic spare parts catalogue (ETKA) install two shims amounting to the correct value.

  • Fit the shim of right thickness (for this example 1.85 mm) and reinsert the outer ring of the conical bearing into the clutch housing.
  • Fit clutch housing and tighten bolts.

Specified torques

  • Gearbox housing to clutch housing
    Differential: assembly and disassembly
    Special tools and workshop equipment required Tightening plate - VW 402- Tightening plate - VW 401- Die - VW 408 A- Die - VW 412- Tube element - VW 418 A- Thrust plate - 30-205- ...

    See also:

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