skoda Workshop Repair Guides

Skoda Workshop Service and Repair Manuals

Replacing sender and drive gear for speedometer > < Replacing the flange shaft gasket rings (gearbox assembled)
Disassembling and assembling the differential
Disassembling and assembling the differential
Special tools and workshop equipment required
t  Drift -MP3-403 (VW 295)-
t  Pressure plate -MP3-406 (VW 401)-
t  Pressure plate -MP3-407 (VW 402)-
t  Thrust piece -MP3-408 (VW 412)-
t  Drift pin -MP3-426 (30-205)-
t  Drive bushing -MP3-427 (40-21)-
t  Thrust plate -MP3-464 (30-205)-
t  Thrust plate -MP3-467 (40-105)-
t  Ejector -3138-
t  Pressure washer -T30047 (3062)-
t  Removal and pressing in device -T30064 (VW 459) -
t  Extraction cups for secondary shaft bearing -T30067 (VW 470)-
t  Taper roller bearing extractor, e.g. -V.A.G 1582-
t  Gripper, e.g. -V.A.G 1582/3-
t  Gripper, e.g. -V.A.G 1582/6-
t  Heating plate or induction heater unit e. g. -VAS 6414-
   
1) Adjustments need to be made when replacing these parts. Setting overview → Chapter.
1 - Gearbox housing1)
2 - Adjusting washer S2
q   Note thickness
q   Setting overview → Chapter
3 - Outer ring/taper roller bearing, small1)
q   extracting → Fig.
q   inserting → Fig.
4 - Inner ring/taper roller bearing, small1)
q   remove → Fig.
q   pressing on → Fig.
5 - Crown wheel1)
q   paired with secondary shaft (drive train)
q   according to gearbox identification characters → Chapter assign via the → Electronic Catalogue of Original Parts.
q   drive out with drift pin → Fig.
q   mounting on differential housing → Fig.
6 - Differential1)
7 - 60 Nm and turn a further 45°
q   always replace → Electronic Catalogue of Original Parts
q   use original replacement parts only
8 - Inner ring/taper roller bearing, large1)
q   remove → Fig.
q   pressing on → Fig.
9 - Drive wheel for speedometer
q   removing and installing → Chapter
q   Fitting position: Collar -arrow- points towards differential gear; catch studs in recess of differential gear housing
q   do not tilt
10 - Outer ring/taper roller bearing, large1)
q   extracting → Fig.
q   inserting → Fig.
11 - Adjusting washer S1
q   Note thickness
q   Setting overview → Chapter
12 - Cover1)
q   for final drive
q   with O-ring seal
q   Replace O-rings → Electronic Catalogue of Original Parts
q   Lubricate O-ring seal when installing
13 - Adjusting washer
q   Determining thickness again → Fig.
14 - Differential bevel gear large
q   installing → Fig.
q   adjust → Fig.
15 - Threaded part
16 - Thrust washer
q   check for breaks or cracking
17 - Differential bevel gear small
q   installing → Fig.
q   adjust → Fig.
18 - Differential bevel gear shaft
q   after removing tensioning pin Pos. 19, drive out with drift pin
q   before inserting, align thrust washers
19 - Tensioning pin
q   always replace → Electronic Catalogue of Original Parts
q   insert flush

   
Extracting small inner ring/tapered-roller bearing
–  Before fitting the extractor, position pressure plate - MP3-467 (40-105)- on the differential housing.
  V39-1670
Pulling off large inner ring/tapered-roller bearing
–  Remove drive gear for speedometer
–  Before fitting the extractor, position pressure plate - MP3-467 (40-105)- on the differential housing.
  V39-1671
Press on small inner ring/tapered-roller bearing
–  Press inner ring/tapered-roller bearing onto the differential gear housing up to the stop.
  S39-0218
Pressing on large inner ring/tapered-roller bearing
–  Press inner ring/tapered-roller bearing onto the differential gear housing up to the stop.
–  Mount drive gear for speedometer
  S39-0219
Remove crown wheel from differential gear housing
  V39-0456
Heat crown wheel to around 100 °C and mount.
–  When mounting, guide crown wheel with locating pins -A- (self-tapping).
  Caution
Wear protective gloves!
–  Allow to cool for a while before tightening the fixing bolts. Then tighten to required torque.
  A39-0064
Install the differential bevel gears
–  Insert thrust washers for small differential bevel gears, with a little grease.
–  Insert large differential bevel gears with selected adjusting washers → Fig..
–  Insert the small differential bevel gears offset at 180°, then swivel into position -arrow-.
–  Insert threaded pieces.
Fitting position: Heel towards the large differential bevel gear
–  Place the the thrust washers so that they are aligned with the hole.
–  Insert the differential bevel gear shaft up to end position and secure.
  V39-0945
Adjust differential bevel gears
–  Insert large differential bevel gears with the thinnest adjusting washers (0.5 mm).
–  Insert small differential bevel gears with thrust washers, and press in the shaft.
  Note
Large differential bevel gears and thrust washers are no longer interchangeable.
–  Push small differential bevel gears outwards and check the play in the large differential bevel gears with the hand -arrows-.
–  Adjust the play by inserting the appropriate adjusting washer → Anchor.
   Specified value: max. 0,10 mm
  Note
  V39-1672
The setting is correct if no more play can be detected with the hand, but the bevel gears can just be turned -arrow-. Assign the adjusting washers via → Electronic Catalogue of Original Parts.
Available adjusting washers:
  V39-1704
Adjusting washer thickness (mm)
0,500,700,90
0,600,801,00

   
Extracting small outer ring/tapered-roller bearing from gearbox housing
  V39-1705
Inserting small outer ring/tapered-roller bearing in gearbox housing
–  Drive in outer ring for tapered-roller bearing with thrust plate -30-205 (MP3-464)- and drift -VW 295 (MP3-403)- into the gearbox housing.
  V39-1706
Drive outer ring/tapered-roller large out of cover of final drive
–  Use a suitable shim block, for example extraction cup for secondary shaft bearings -T30067 (VW 470)- with gap in cover for final drive.
  V39-1707
Drive outer ring/tapered-roller bearing large into the cover for final drive
  S39-0221

Replacing sender and drive gear for speedometer > < Replacing the flange shaft gasket rings (gearbox assembled)