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Home >> Volkswagen >> 2015 >> Jetta Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 106 (2.0L - Crankshaft, Cylinder Block - Engine Code(S): CJAA (Sedan)) >> 13 Crankshaft, Cylinder Block >> Description And Operation >> Toothed Belt Drive Overview

Toothed Belt Drive Overview

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Fig 1: Identifying Toothed Belt Overview
GWWN13-10300Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
  1. Toothed Belt
    • Mark the direction of rotation before removing.
    • Check for wear.
    • Do not kink.
    • Removing, installing and tensioning, refer to TOOTHED BELT .
  2. Bolt
    • 120 Nm + an additional 90° (1/4) turn.
    • Always replace.
    • Use the Counterhold - Crankshaft Sprocket 3415 to loosen and tighten.
    • Do not lubricate or grease the threads or collar.
    • The additional turn can occur in several stages.
    • For the crankshaft toothed belt gear.
  3. Crankshaft Toothed Belt Gear
  4. Bolt
    • 20 Nm
  5. Idler Roller
  6. Nut
    • 20 Nm + an additional 45° (1/8) turn.
    • Always replace.
  7. Belt Tensioner
    • Remove the engine mount bracket to remove and install. Refer to ENGINE BRACKET .
  8. Bolt
    • 20 Nm + an additional 45° (1/8) turn.
    • Always replace.
  9. Camshaft Toothed Belt Gear
  10. Bolt
    • 25 Nm
  11. Bolt
    • 100 Nm
  12. Hub
    • Use the Counterhold - Camshaft Gear T10051 to loosen and tighten.
    • To remove, use the Puller - Camshaft Sprocket T10052.
    • Removing and installing, refer to CAMSHAFTS .
  13. Rear Toothed Belt Guard
  14. Bolt
    • 20 Nm
  15. Bolt
    • 10 Nm
    • Always replace.
  16. Idler Roller
  17. Bolt
    • 50 Nm + an additional 90° (1/4) turn.
    • Always replace.
  18. Hub
    • Use the Counterhold - Camshaft Gear T10051 to loosen and tighten.
    • Use the Puller - PulleyT40064 to remove.
    • Removing and installing, refer to HIGH PRESSURE FUEL PUMP .
  19. Nut
    • 95 Nm
  20. High Pressure Fuel Pump Toothed Belt Gear
  21. Bolt
    • 20 Nm + an additional 90° (1/4) turn.
    • Always replace.
  22. Coolant Pump
  23. Bolt
    • 15 Nm
  24. Upper Toothed Belt Guard
    • Installing, refer to Fig 2.
  25. Lower Toothed Belt Guard
  26. Center Toothed Belt Guard
  27. Bolt
    • 10 Nm
    • Always replace.
    • For center toothed belt guard.
  28. Bolt
    • 10 Nm + an additional 90° (1/4) turn.
    • Always replace.
    • For the vibration damper.
  29. Vibration Damper
    • Only possible to install in one position, because the bores are offset.
  30. Bolt
    • 5 Nm
  31. Protective Plate
  32. Bolt
    • 40 Nm + an additional 180° (1/2) turn.
    • Always replace.
    • Observe the tightening sequence, refer to Fig 3.
  33. Engine Mount Bracket
Fig 2: Identifying Toothed Belt Guard Clips
GWWN15-10459Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Make sure the upper toothed belt guard section is clipped -arrows- to the cylinder head cover correctly.

NOTE:

The camshaft sprocket is not shown in the illustration.

-- Press the upper toothed belt guard in the area with the clips -arrows- against the cylinder head cover until the clips -arrows- engage with each other. Use a screwdriver to press the guard if necessary.

-- Check the clearance between the hub and the upper toothed belt guard.

Fig 3: Engine Mount Bracket to Cylinder Block Bolt Tightening Sequence
GWWN13-10233Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.