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° turn
   • Always replace
3. Bolt
   • 22 Nm
4. Drive Chain Sprocket Thrust Washer
5. Drive Sprocket for Left Timing Chain
6. Bolt
   • 10 Nm + 90° turn
   • Always replace
7. Power Take-Off Drive Chain
   • Removing and installing. Refer to TIMING MECHANISM DRIVE CHAIN, REMOVING AND INSTALLING .
8. Guide Rail
9. Bolt
   • 10 Nm + 90° turn
   • Always replace
10. Bolt
    • 9 Nm
11. Mounting Pin for the Drive Chain Sprocket
    • For the right camshaft timing chain
    • Asymmetrical version
    • Installed position. Refer to Figure
12. Thrust Washer
13. Drive Sprocket for Right Timing Chain
14. Mounting Pin for the Drive Chain Sprocket
15. Bolt
    • 42 Nm
16. O-ring
    • Always replace
17. Chain Tensioner
18. Bolt
    • 5 Nm + 90° turn
    • Always replace
19. Crankshaft
20. Bolt
    • 10 Nm + 90° turn
    • Always replace