A4 Mk2
Adjusting crown wheel |
(Adjusting differential) |
Special tools and workshop equipment required |
t | Drift -VW 295- |
t | Dial gauge extension -VW 382/10- |
t | End measuring plate -VW 385/17- |
t | Universal dial gauge bracket -VW 387- |
t | Adjustable measuring lever -VW 388- |
t | Thrust plate -VW 402- |
t | Press tool -VW 408 A- |
t | Crown wheel adjusting tool -VW 521- |
t | Tube -30 - 14- |
t | Thrust piece -2050- |
t | Thrust plate -3005- |
t | Torque wrench -V.A.G 1331- |
t | Dial gauge |
t | Dial gauge extension, 30 mm |
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Note
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Note
Note
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Example: | ||
Inserted shim(s) “S2*” | 1.30 mm | |
+ | Measured value | 0.62 mm |
+ | Bearing preload (constant value) | 0.25 mm |
= | Total shim thickness “Stotal” for “S1” plus “S2” | 2.17 mm |
Note
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Example: | ||
Total shim thickness “Stotal” for “S1” plus “S2” | 2.17 mm | |
– | Inserted shim(s) “S2*” | 1.30 mm |
= | Thickness of shim “S1*” | 0.87 mm |
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Note
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Example: | ||
1st measured value | 0.28 mm | |
+ | 2nd measured value | 0.30 mm |
+ | 3rd measured value | 0.30 mm |
+ | 4th measured value | 0.28 mm |
= | Sum of measured values | 1.16 mm |
Note
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Example: | ||
Inserted shim “S2*” | 1.30 mm | |
– | Measured average backlash | 0.29 mm |
+ | Specified backlash (desired average value for backlash) | 0.20 mm |
= | Thickness of shim “S2” | 1.21 mm |
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Shim thickness (mm) 1) | ||
0.45 | 0.61 | 0.77 |
0.49 | 0.65 | 0.81 |
0.53 | 0.69 | 0.85 |
0.57 | 0.73 | |
1) The exact shim thickness required can be obtained by using the shim tolerance variations. Install two shims if necessary. |
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Example: | ||
Total shim thickness “Stotal” for “S1” plus “S2” | 2.17 mm | |
– | Thickness of shim “S2” | 1.21 mm |
= | Thickness of shim “S1” | 0.96 mm |
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Shim thickness (mm) 1) | ||
0.45 | 0.61 | 0.77 |
0.49 | 0.65 | 0.81 |
0.53 | 0.69 | 0.85 |
0.57 | 0.73 | |
1) The exact shim thickness required can be obtained by using the shim tolerance variations. Install two shims if necessary. |
Note
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