Chain Drive Assembly Overview

Fig 1: Identifying Part I - Chain Drive, Assembly Overview

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

1. Control Housing
   • Markings on control housing, refer to Fig 3.
   • Lightly lubricate the contact surfaces of the oil seals before installing.
   • Removing and installing, refer to CAMSHAFTS .
   • Disassembling and assembling, refer to Fig 4.
   • Check the control housing strainer for contamination before installing. Refer to Fig 5.
2. Bolt, 8 Nm
   • Install with locking fluid.
3. Camshaft Roller Chain
   • Mark the direction of rotation before removing (installed position). Refer to Fig 2.
   • Installing, refer to VALVE TIMING, ADJUSTING .
4. Exhaust Camshaft Adjuster
   • Identification: 32A.
   • Only rotate the engine with the camshaft adjuster installed.
   • Installing, refer to VALVE TIMING, ADJUSTING .
5. Intermediate Shaft
6. Camshaft Roller Chain Tensioning Rail
7. Pivot Pin, 18 Nm
8. Camshaft Roller Chain Tensioner, 40 Nm
   • Only rotate the engine with the chain tensioner installed.
9. Seal
   • Replace if damaged or leaking.
10. Intermediate Shaft Roller Chain Sprocket
    • Installing, refer to VALVE TIMING, ADJUSTING .
11. Camshaft Roller Chain Sprocket
    • Installing, refer to VALVE TIMING, ADJUSTING .
12. Bolt, 60 Nm + 90° (1/4) addition turn
    • Always replace.
    • Use the counter holder tool T10069 to tighten and loosen. Refer to VALVE TIMING, ADJUSTING .
13. Intermediate Shaft Roller Chain Tensioner With Tensioning Rail
    • Before installation, release the locking device in the chain tensioner with a small screwdriver and press the tensioning plate against the chain tensioner.
    • Only rotate the engine with the chain tensioner installed.
14. Crankshaft Drive Gear
    • Integral part of the crankshaft.
    • Ground down tooth aligned with the main bearing joint = Top Dead Center (TDC) cylinder 1. Refer to VALVE TIMING, ADJUSTING .
15. Intermediate Shaft Roller Chain
    • Mark the direction of rotation before removing (installed position). Refer to Fig 2.
    • Installing, refer to VALVE TIMING, ADJUSTING .
16. Guide Rail
    • Remove and install together with the intermediate shaft roller chain. Refer to VALVE TIMING, ADJUSTING .
17. Guide Rail Locating Pin Without Collar, 10 Nm
18. Pivot Pin, 18 Nm
19. Bolt, 23 Nm
20. Intake Camshaft Adjuster
    • Identification: 24E.
    • Only rotate the engine with the camshaft adjuster installed.
    • Installing, refer to VALVE TIMING, ADJUSTING .
21. Bolt, 60 Nm + 90° (1/4) additional turn
    • Always replace.
    • The contact surface of the sensor wheel and bolt head must be dry when installing.
    • To remove and install, counter hold the camshaft using an 32 mm open end wrench. Refer to CAMSHAFTS .
22. Camshaft Roller Chain Guide Rail
23. Camshaft Adjustment Valve 1 (Exhaust) -N318-
    • For the exhaust camshaft.
    • Before disconnecting, mark the allocation of the electrical connector to the component.
24. Intake Camshaft Adjustment Valve 1 -N205-
    • Before disconnecting, mark the allocation of the electrical connector to the component
25. Camshaft Roller Chain Guide Rail
    • Clipped onto the control housing.

Fig 2: Identifying Marks On Roller Chains

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Mark the roller chains before removing (for example, using paint, place a arrow pointing in direction of rotation).

Fig 3: Identifying Marks On Control Housing With MPI Engines

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Fig 4: Control Housing, Assembly Overview

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Fig 5: Checking Strainer Of Control Housing For Soiling

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.