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Removing and installing oil pump > < Removing and installing balance shaft assembly with chain drive

A4 Cabriolet Mk2

Removing and installing chain tensioner for balance shaft assembly
Removing and installing chain tensioner for balance shaft assembly
Special tools and workshop equipment required
   
t  Locking pin -T10115-
Removing
–  Move lock carrier to service position → Chapter.
–  Remove toothed belt → Chapter.
–  Remove sump → Chapter.
–  Remove sealing flange (front) → Chapter.
  W00-1231
–  Unscrew bolts -arrows- and detach chain sprocket cover.
  A17-10065
–  Press guide rail for chain tensioner in -direction of arrow- using a screwdriver and lock chain tensioner with locking pin -T10115-.
–  Remove bolts -1- and -3-.
–  Then unscrew bolt -2- and remove chain tensioner.
Installing
–  Initially bolt chain tensioner (locking pin inserted) onto cylinder block with fitted bolt -2-.
–  Then tighten bolts -1- and -3-.
–  Remove locking pin -T10115- from chain tensioner.
  A17-10068
–  Fit chain tensioner cover -arrows-.
Remaining installation steps are carried out in reverse sequence; note the following:
  Note
t  Hose connections and hoses for charge air system must be free of oil and grease before assembly.
t  Secure all hose connections with the correct type of hose clips (same as original equipment) → Electronic parts catalogue.
t  To ensure that the charge air hoses can be properly secured at their connections, spray rust remover onto the worm thread of used hose clips before installing.
–  Install sealing flange (front) → Chapter.
–  Install sump → Chapter.
–  Install toothed belt (adjust valve timing) → Anchor.
–  Install vibration damper → Chapter.
–  Install poly V-belt → Chapter.
–  Install lock carrier with attachments → Rep. Gr.50.
  A17-10065
–  Allow stop for torque reaction support to rest on rubber buffer for torque reaction support under its own weight and tighten nuts -arrows-.
–  Install bumper cover (front) → Rep. Gr.63.
–  Fill up with engine oil and check oil level → Booklet803 or → Booklet805.
Tightening torques
  A10-10288
ComponentNm
Chain tensionerCylinder block20
to:Balance shaft assembly9
Cover forChain tensioner5 1)
Drive chain to:Oil pump5 1)
Stop for torque reaction support to lock carrier28
Hose clips (9 mm wide)3
Hose clips (13 mm wide)5,5
l  1) Apply locking fluid when installing bolts; for locking fluid refer to → Electronic parts catalogue.

   

Removing and installing oil pump > < Removing and installing balance shaft assembly with chain drive