Subsequent Work

Fig 1: Overview Of Timing Chains

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

1. Timing chain housing
2. Oval-head screw on timing chain housing → Tightening torque: 8 Nm (6 ft lbs.) 
3. Timing chain
4. Outlet camshaft controller (marking 32 A)
5. Sealing ring
6. Oil pump
7. Fastening screw on oil pump → Tightening torque: 8 Nm (6 ft lbs.) 
8. Tensioning rail
9. Chain tensioner on timing chain → Tightening torque: 40 Nm (30 ft lbs.) 
10. Sealing ring (A22 x 27), always replace
11. Bearing pin on guide rail → Tightening torque: 10 Nm (7.5 ft lbs.) 
12. Sprocket
13. Drive wheel for timing chain
14. Hexagon-head bolt → Initial tightening: 60 Nm (44 ft lbs.)  → Torque angle: 90° 
15. Chain tensioner for drive chain
16. Drive gear wheel for drive chain
17. Drive chain
18. Guide rail for drive chain
19. Bolt for guide rail → Tightening torque: 10 Nm (7.5 ft lbs.) 
20. Fastening screw on guide rail → Tightening torque: 20 Nm (15 ft lbs.) 
21. Hexagon-head bolt on guide rail → Tightening torque: 23 Nm (17 ft lbs.) 
22. Hexagon-head bolts on camshaft controllers → Initial tightening: 60 Nm (44 ft lbs.) → Torque angle: 90° 
23. Guide rail for timing chain
24. Drive gear wheel for high-pressure pump
25. Intake camshaft controller (marking 24 E)
26. Valve for outlet camshaft controller
27. Valve for intake camshaft controller
28. Guide rail

1. 2.1. Install chain tensioner. → 153619 REMOVING AND INSTALLING CHAIN TENSIONER ON V6 DFI ENGINES 
   NOTE: Incorrect handling of crankshafts

   • Risk of damage to the timing system

   → Never turn the crankshaft against the rolling direction or when the chain tensioner is removed.

   → Proceed carefully with your work.

   → Only turn the engine at the crankshaft.

   → After working on the camshaft, re-set the valve timing.

   → Observe general warning notes and working regulations.

→ Removing and installing drive belt

Fig 2: Identifying Drive Belt Fitting Sequence

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

1. Crankshaft vibration balancer
2. Coolant pump
3. Drive belt tensioning roller
4. Air conditioning compressor
5. Power-steering pump/tandem pump
6. Generator
7. Deflection roller