Power transmissionDifferential: assembly and disassembly
| Check the tool and equipment equivalence table according to the applicability between Seat / VW / Audi / Skoda → Chapter. |
|
|
|
| Special tools and workshop equipment required |
| t
| Torque wrench kit -SAT 8010-, see equivalent → Anchor |
| t
| Bracket -T20020-, see equivalent → Anchor |
| t
| Kit (case) -U 40200A-, see equivalent → Anchor |
| t
| Kit (case) -U 40300-, see equivalent → Anchor |
| Adjust the differential when one of the following elements has been replaced: |
| t
| Differential roller bearing |
|
|
|
| –
| Remove the outer roller bearing track from the differential, in the gearbox and clutch housing, with adapter -U 40200/10- and adapter -U 40300/14-. |
Note | t
| The procedure and tools needed to remove the secondary shaft rear bearings outer tracks, are identical in the gearbox casing and the clutch housing. |
| t
| To remove outer track of clutch casing, first remove socket for right articulation flange seal → Chapter, Gearbox housing and clutch housing: repairs. |
| t
| The roller bearings and their corresponding outer tracks are matched pairs. Do not mix with other bearings. |
|
|
|
| –
| Install the outer roller bearing track from the differential, in the gearbox and clutch housing, without shims, with adapter -U 40200/10- and adapter -U 40300/12-. |
Note | The procedure and tools needed to install the secondary shaft rear bearings outer tracks, are identical in the gearbox casing and the clutch housing. |
| –
| Place the differential on the clutch housing. |
| –
| Assemble the gearbox casing on the clutch housing and tighten the securing bolts to 25 Nm + 90º. |
|
|
|
| –
| Install support -T20020- with a dial gauge on the gearbox housing. Place its end on the differential, inserting the adapter -U 40300/13-. |
| –
| Adjust the dial gauge to “0” with a pre-tension of 1 mm. |
| –
| Move the differential alternately in the direction of the arrows. |
| –
| Note reading on comparator (e.g. 0.70 mm). |
Note | When measuring do not turn the differential, because the roller bearings may settle and the reading would be erroneous. |
| The specified pre-tension of the bearing is obtained by adding a constant pressure value (0.40 mm) to the obtained measurement value (in the example: 0.70mm). |
|
|
|
| Average value | 0.70 mm |
| + Pressure value (const. value) | 0.40 mm |
| Thickness of shim | 1.10 mm |
| The shim needed will be determined by the following table: |
|
|
|
| Thickness (mm) | |
0,65
0,70
0,75 | → Parts Catalogue. |
0,80
0,85
0,90 |
0,95
1,00
1,05 |
1,10
1,15
1,20 |
| 1,25 |
| The existence of different tolerances allows the exact calibration of the thickness of the shim needed. |
| If the thickness needed is greater than those indicated on the table, two shims can be used that add up to the determined value. |
| –
| Once the necessary shim has been determined, remove the dial gauge. |
| –
| Remove the bolts that secure both casings and remove the gearbox casing. |
| –
| Separate the differential. |
|
|
|
| –
| Remove the outer conical roller bearing track of the differential from the gearbox housing with the adaptor -U 40200/10- and the adaptor -U 40300/14-. |
| –
| Install the shim shaft with the calculated thickness (1.10 mm in the example) in the housing of the differential outer roller bearing track in the gearbox casing. |
| –
| If it is necessary to fit two shims, place the thickest one first. |
|
|
|
| –
| Mount the outer conical roller bearing track of the differential on the gearbox housing with the adaptor -U 40200/10- and the adaptor -U 40300/12-. |
| –
| Place the differential on the clutch housing. |
| –
| Assemble the gearbox casing on the clutch housing and tighten the securing bolts to 25 Nm + 90º. |
|
|
|
01 Transmission
The same page in:
Leon Mk2.
