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

A4 Mk2

Drive chain for valve gear - exploded view of components
   
Drive chain for valve gear - exploded view of components
  Note
Mark rotation direction of chain with paint before removing. If a used chain rotates in the opposite direction when it is refitted, this can cause breakage.
1 - Bearing mounting for drive sprocket
2 - Washer
3 - 42 Nm
4 - Mounting pin, 10 Nm
5 - 5 Nm + 90° (1/4 turn) further
q   Renew
6 - Thrust washer for drive sprocket
7 - Drive sprocket for timing chain (left-side)
8 - Mounting pin, 10 Nm
9 - Drive chain for valve gear
10 - Guide rail
11 - Mounting pin, 10 Nm
12 - 10 Nm
13 - Bearing bracket for drive sprocket
14 - O-ring
q   Renew
15 - Thrust washer
16 - Drive sprocket for timing chain (right-side)
17 - Mounting pin, 10 Nm
18 - O-ring
q   Renew
19 - Chain tensioner
20 - 10 Nm
21 - Guide rail for chain tensioner
22 - Crankshaft
23 - Guide rail
24 - Mounting pin, 10 Nm

   

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