Overview - Timing Mechanism Drive Chain: Notes

Fig 1: Exploded View Of Timing Mechanism Drive Chain, Assembly

Courtesy of AUDI OF AMERICA, LLC

1. Guide Rail
2. Bolt
   • 10 Nm + 90° additional turn
   • Replace
3. Bolt
   • Tightening Specification. Refer to -item  ) OVERVIEW - CAMSHAFT TIMING CHAINS - Bolt.
4. Drive Chain Sprocket Thrust Washer
5. Drive Sprocket for Left Timing Chain
6. Bolt
   • 10 Nm + 90° additional turn
   • Replace
7. Power Take-Off Drive Chain
   • Before removing, mark the direction of rotation with paint
   • Removing and installing. Refer to TIMING MECHANISM DRIVE CHAIN, REMOVING AND INSTALLING .
8. Guide Rail
9. Bolt
   • 10 Nm + 90° additional turn
   • Replace
10. Bolt
    • Tightening Specification. Refer to -item  ) OVERVIEW - CAMSHAFT TIMING CHAINS - Bolt.
11. Mounting Bracket for Drive Sprocket
    • For the right camshaft timing chain
    • Asymmetrical version
    • Installed position. Refer to Figure
12. Thrust Washer
    • Asymmetrical version
    • Installed position. Refer to Figure
13. Drive Sprocket for Right Timing Chain
    • Installed position. Refer to Figure
14. Mounting Pin for the Drive Chain Sprocket
    • Asymmetrical version
    • Installed position. Refer to Figure
15. Bolt
    • Tightening Specification. Refer to -item  ) OVERVIEW - CAMSHAFT TIMING CHAINS - Bolt.
16. O-Ring
    • Replace
17. Chain Tensioner
18. Bolt
    • 9 Nm
19. Crankshaft
20. Bolt
    • 10 Nm + 90° additional turn
    • Replace