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Drive chain for auxiliary drives - exploded view > < Drive chain for valve gear - exploded view

A4 Mk3

Removing and installing drive chain for valve gear
Removing and installing drive chain for valve gear
Special tools and workshop equipment required
   
t  Locking pin -T40071-
Removing
l  Gearbox removed → Rep. gr.34.
–  Remove timing chain cover (bottom) → Chapter.
–  Remove timing chains from camshafts → Chapter.
–  Remove drive chain for auxiliary drives → Chapter.
  W00-10238
–  Press guide rail of chain tensioner for drive chain in direction of -arrow- and lock chain tensioner by inserting locking pin -T40071-.
  Caution
If a used drive chain rotates in the opposite direction when it is refitted, this can cause breakage.
Mark running direction of drive chain with paint for re-installation. Do not attempt to mark the drive chain with a centre punch or by making a notch or similar.
–  Unscrew bolts -1- and remove guide rail.
–  Remove bolts -2- and take off chain tensioner.
–  Detach drive chain for valve gear.
Installing
Installation is carried out in the reverse order; note the following:
l  Tightening torques → Chapter „Drive chain for valve gear - exploded view“
  Note
Renew the bolts tightened with specified tightening angle.
–  Position drive chain for valve gear onto drive chain sprockets (according to marks applied when removing).
  A13-10362
–  Install guide rail and tighten bolts -1-.
–  Install chain tensioner and tighten bolts -2-.
–  Press guide rail of chain tensioner for drive chain in direction of -arrow- and remove locking pin -T40071-.
–  Install drive chain for auxiliary drives → Chapter.
–  Fit timing chains on camshafts → Chapter.
–  Install timing chain cover (bottom) → Chapter.
  A13-10362

Drive chain for auxiliary drives - exploded view > < Drive chain for valve gear - exploded view