SEAT Workshop Service and Repair Manuals

The differential must be adjusted, when

• ◆ Gearbox housing
• ◆ Clutch housing

• ◆ Differential housing

or the

• ◆ Differential taper roller bearing

have been renewed.

Adjustment overview .

• ‒ → Press taper roller bearing outer race (gear wheel side) without shim into gearbox housing.

Note:

Taper roller bearing inner and outer races are paired. Do not interchange!

• ‒ → Press taper roller bearing outer race (opposite gear wheel side) with 1.10 mm shim into clutch housing.

• ‒ Fit differential into gearbox housing.
• ‒ Fit gearbox housing and tighten bolts to 30 Nm.
• ‒ → Assemble measuring device and D.T.I. (3 mm measuring scale, approx. 30 mm extension).
• ‒ Before taking any measurements rotate differential to allow bearings to settle.
• ‒ Zero D.T.I. with one 1 mm preload.

Note:

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

• ‒ Move differential up and down, read and note play indicated on D.T.I.
  (Example: 0.65 mm)

Determining shim S2 thickness

The specified bearing preload is obtained by adding the gauge reading
(0.65 mm) and the thickness of the measurement shim installed
(1.10 mm) to a constant, for preload
(0.20 mm)

Example:

• ‒ Specify thickness of shim according to table => Page 39-24 and determine Part No. from parts catalogue.
• ‒ → Remove clutch housing and drive out taper roller bearing outer race.
• ‒ Fit determined shim (in example 1.95 mm) and press taper roller bearing outer race again into clutch housing.
• ‒ Checking friction moment => Page 34-105.

Table of "shims":

    1)    To determine shim add gauge reading to measurement shim