Power transmissionDifferential: adjustment
| Special tools and workshop equipment required |
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| Gearbox repair set -U-40200- |
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| Gearbox repair set -U-40300- |
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| Universal dial gauge bracket -T20020- |
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| Torque spanner -SAT 8010- |
| Adjust the differential when one of the following elements has been replaced: |
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| Differential roller bearings |
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| Remove the differential outer roller bearing track from the gearbox casing, with tool -U-40200/10- and tool -U-40300/14-. |
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| The procedure and tools needed to remove the outer tracks of the roller bearings are identical for the gearbox and clutch casings. |
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| To remove the outer track of the clutch casing, previously remove the articulation flange oilseal bush → Chapter, Gearbox casing and clutch casing: repairing. |
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| The roller bearings and their corresponding outer tracks are matched pairs. Do not mix with other bearings. |
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| Install the differential outer roller bearing track from the gearbox casing, with tool -U-40200/10- and tool -U-40300/12-. |
Note! | The procedure and tools needed to install the outer tracks of the roller bearings are identical for the gearbox and clutch casings. |
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| Place the differential on the clutch housing. |
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| Fit the gearbox casing onto the clutch housing and tighten the securing bolts to 25 Nm + 90°. |
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| Fit tool -T20020- on the gearbox casing with a dial gauge. Locate the end of the gauge on the differential, interplacing tool -U-40300/13-. |
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| Adjust the dial gauge to “0” with a pre-tension of 1 mm. |
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| Move the differential alternately in the -direction of the arrows-. |
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| Take note of the measurement obtained (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 pre-tension of the bearing is obtained by adding a constant pressure value (0.4 mm) to the obtained measurement value (in the example: 0.70 mm). |
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| Average value | 0.70 mm |
| + Pressure (const. value) | 0.40 mm |
| Thickness of shim | 1.10 mm |
| The shim needed will be determined by the following table: |
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| Thickness (mm) | Spare no. |
0.65
0.70
0.75 | 02A 409 210
02A 409 210 A
02A 409 210 B |
0.80
0.85
0.90 | 02A 409 210 C
02A 409 210 D
02A 409 210 E |
0.95
1.00
1.05 | 02A 409 210 F
02A 409 210 G
02A 409 210 H |
1.10
1.15
1.20 | 02A 409 210 J
02A 409 210 K
02A 409 210 L |
| 1.25 | 02A 409 210 M |
| The existence of different tolerances allows the exact calibration of the thickness of the washer needed. |
| If the thickness needed is greater than those indicated on the table, two shims can be used that add to the determined value. |
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| Once the necessary shim has been determined, remove the dial gauge. |
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| Remove the bolts that secure both casings and separate the gearbox casing. |
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| Separate the differential. |
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| Remove the differential outer roller bearing track of the gearbox casing, with tool -U-40200/10- and tool -U-40300/14-. |
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| Fit the shim of the correct thickness (in this case 1.10 mm) into the housing in the outer track of the differential roller bearing in the gearbox casing. |
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| If it is necessary to fit two shims, place the thickest one first. |
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| Fit the differential outer roller bearing track to the gearbox casing, with tool -U-40200/10- and tool -U-40300/12-. |
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| Place the differential on the clutch housing. |
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| Fit the gearbox casing onto the clutch housing and tighten the securing bolts to 25 Nm + 90°. |
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01 Transmission
The same page in:
Leon Mk2.
