audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Removing and installing camshaft oil seal > < Valve gear
Valve gear - exploded view
   
Valve gear - exploded view
1 - Oil seal
q   Do not additionally oil or grease sealing lip of oil seal
q   Before installing, use clean cloth to wipe oil residue off camshaft journal.
q   When fitting, mask groove on taper of camshaft (using e.g. transparent adhesive tape)
q   Removing and installing → Chapter
2 - Bolt
q   Note correct sequence when loosening → Fig.
q   Note correct sequence when tightening → Fig.
3 - Nut
q   10 Nm
4 - Retaining frame
q   With integrated camshaft bearings
q   Note correct sequence when loosening → Fig.
q   Note correct sequence when tightening → Fig.
q   Clean sealing surface; machining not permitted
5 - Exhaust camshaft
6 - Inlet camshaft
7 - Roller rocker finger
q   Mark installation position
q   Do not interchange
q   Check roller bearings for ease of movement
q   Lubricate contact surface
8 - Hydraulic valve compensation element
q   Mark installation position
q   Lubricate contact surfaces before installing
9 - Valve
q   Do not machine, only grinding-in is permitted
q   Mark installation position for re-installation
q   Valve dimensions → Chapter
q   Checking valve guides → Chapter
10 - Cylinder head
q   See note → Chapter
11 - Valve stem oil seal
q   Renewing valve stem oil seals → Chapter
12 - Valve spring
13 - Valve spring plate
14 - Valve cotter
15 - Sealing cap
q   Renew

   
Loosening retaining frame
–  Remove bolts securing retaining frame in the sequence -24 ... 1-.
  N15-10421
Tightening sequence for retaining frame
–  Tighten cylinder head bolts in the sequence -1 ... 24- as follows:
1.  Fit bolts in the sequence -1 ... 24- and hand-tighten in several stages.
2.  Tighten bolts in the sequence -1 ... 24- to 10 Nm using torque wrench.
  N15-10421

Removing and installing camshaft oil seal > < Valve gear