seat Workshop Repair Guides

SEAT Workshop Service and Repair Manuals

Rear flexible disc: removing and fitting > < Cardan shaft
Cardan shaft: removing and fitting
Cardan shaft: removing and fitting
Removing → Anchor.
Fitting → Anchor.
Tightening torques → Anchor.
   
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 -V.A.G 1331-, see equivalent → Anchor.
t  Torque wrench -V.A.G 1332-, see equivalent → Anchor.
t  Engine assembly crane -V.A.G 1383 A-, see equivalent → Anchor.

Removing
   
–  Check if there is a mark (a coloured point) -arrows- on the flexible disc, flange coupling, rear final group and the front differential that coincides with the cardan shaft.
If there are no marks, mark the position of the flexible disc with respect to the rear final group flange and the front differential -arrows-.
  Caution
Mark the position of the bolts, as some of them may have a balancing washer for preventing vibrations.
  N39-0836
–  Unscrew bolts -1 ...3- and remove the pendular support.
–  Remove the exhaust system → Rep. Gr.26.
–  Support the cardan shaft with the Engine assembly crane -V.A.G 1383 A-.
  A10-1578
–  Remove the bolts -arrows- from the final group flange.
  Note
  A39-0281
t  Do not bend the cardan shaft when removing it; separate it from the centring pivot while keeping it horizontal. Do not damage the O-ring in the dowel sleeve -arrow-.
t  Do not separate the flexible disc and the vibration damper.
–  Remove the cardan shaft from the final group and lower it with help from a second mechanic.
Fitting
Installation is carried out in reverse order, noting the following:
  Note
t  Tightening torques → Anchor.
t  Reinstall the cardan shaft so that its marks are aligned.
  V39-1817
t  Do not damage the flange seals -arrow- for the cardan shaft while fitting. Replace the cardan shaft if the seals are damaged.
t  Install the cardan shaft on the centring pivot while keeping it horizontal.
Installation position:
t  The flanges for the conical gear pair and the rear final group that are joined to the cardan shaft have three bushings that protrude and encase the holes corresponding to the flexible discs.
  V39-1817
–  Join the cardan shaft to the flanges for the rear final group and the conical gear pair so that the marks -arrows- are aligned.
  N39-0836
Location of various collar bolts
  N39-10187
Bolt withLocation
small collar -arrow A-cardan shaft to front final group -A-
large collar -arrow B-cardan shaft to rear final group -B-

Install the centre support without tension
t  Tightening torques → Anchor.
–  Align the centre elastic support inside the oblong orifices. Do not force the orifice or the cardan shaft into position.
–  Do not screw in the centre support before the entire cardan shaft has been tightened.
   
First screw the pendular support to the gearbox. Afterwards, screw it into the subframe, bolts -A ... C-; use new bolts →  Running gear, shafts, steering; Rep. Gr.40.
–  Install the exhaust system free of stress → Rep. Gr.26.
  Note
t  If noises are heard while it is running, proceed as follows:
t  If necessary, unscrew the cardan shaft and the flexible disc from the rear final group flange and rescrew after rotating it into position.
t  If the noise continues, readjust the position of the cardan shaft.
Tightening torques
  N34-1826
Component Nm
Centre support to bodywork
l  The bolts must be positioned within the four centring tabs of the thermal protection plate for the centre support.
25

   
Component Nm
Flexible disc to the rear final group60
Flexible discs to the cardan shaft
t  Replace bolts.
50 Nm + 90º (1/4 turn)
Flexible disc to the conical gear pair60

   

Rear flexible disc: removing and fitting > < Cardan shaft