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Removing and installing drive chain for valve gear > < Removing and installing camshaft timing chains

A4 Mk3

Drive chain for valve gear - exploded view
   
Drive chain for valve gear - exploded view
1 - Guide rail
2 - Bolt
q   Renew
q   10 Nm + turn 90° further
3 - Bolts
q   Renew
q   5 Nm + turn 60° further
4 - Bearing mounting for drive sprocket
5 - Drive sprocket for timing chain (left-side)
6 - Bolt
q   Renew
q   10 Nm + turn 90° further
7 - Drive chain for valve gear
q   Mark direction of rotation for re-installation with a paint marker
q   Removing and installing → Chapter
8 - Bolt
q   Renew
q   10 Nm + turn 90° further
9 - Guide rail
10 - Bolt
q   Renew
q   8 Nm + turn 45° further
11 - Bearing plate for drive sprocket
q   For camshaft timing chain (right-side)
q   Asymmetric version
12 - Drive sprocket for timing chain (right-side)
q   Installation position → Fig.
13 - Thrust washer
q   Asymmetric version
q   Installation position → Fig.
14 - Bearing mounting for drive sprocket
q   Asymmetric version
q   Installation position → Fig.
15 - Bolt
q   30 Nm + turn 90° further
16 - Seal
q   Renew
17 - Chain tensioner
q   Removing and installing → Chapter „Removing and installing drive chain for valve gear“
18 - Bolt
q   9 Nm
19 - Crankshaft
20 - Bolt
q   Renew
q   10 Nm + turn 90° further

   
Installation position: bearing mounting for drive sprocket for camshaft timing chain (right-side)
l  Dowel pins in bearing mounting -3- for drive sprocket for camshaft timing chain (right-side) must engage in drillings in thrust washer -1- and in cylinder block drillings.
2 - Drive sprocket for camshaft timing chain (right-side)
4 - Bolt
  A13-10325

Removing and installing drive chain for valve gear > < Removing and installing camshaft timing chains