Toothed Belt Drive Overview
Toothed Belt Drive Overview
1 Toothed Belt
• Mark the rotation direction before removing.
• Check for wear.
• Do not kink.
• Removing, installing and tensioning. Refer to => [ Toothed Belt ] Toothed Belt.
2 Bolt
• 120 Nm + an additional 90° (1/4) turn.
• Always replace.
• Use the counter support (3415) to loosen and tighten.
• Do not lubricate or grease the threads or collar.
• The additional turn can occur in several stages.
3 Crankshaft Toothed Belt Gear
4 Nut
• 20 Nm
5 Idler Roller
6 Nut
• 20 Nm + an additional 45° (1/8) turn.
7 Tensioning Roller
• Note the different versions. Refer to => [ Different Tensioning Roller Versions ] Toothed Belt.
• Remove the engine mount bracket to remove and install. Refer to => [ Engine Mount and Bracket ] Engine Mount and Bracket.
8 Bolt
• 20 Nm + an additional 45° (1/8) turn.
9 Camshaft Sprocket
10 Bolt
• 20 Nm
11 Bolt
• 100 Nm
12 Hub
• Use the camshaft gear counter-holder (T10051) to loosen and tighten.
• To remove, use the puller (T10052).
• Removing and installing, refer to => [ Camshafts ] Service and Repair.
13 Rear Toothed Belt Guard
• Make sure it fits correctly on the cylinder head cover, refer to => [ Installing ] Cylinder Head Cover.
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 camshaft gear counter-holder (T10051) to loosen and tighten.
• Use the puller (T40064) to remove.
• Removing and installing, refer to => [ High Pressure Pump ] High Pressure Pump.
19 Nut
• 95 Nm
20 High Pressure Pump Toothed Belt Gear
• Removing and installing, refer to => [ High Pressure Pump ] High Pressure Pump.
21 Bolt
• 20 Nm
22 Coolant Pump
• Removing and installing, refer to => [ Coolant Pump ] Coolant Pump.
23 Bolt
• 15 Nm
24 Upper Toothed Belt Guard
25 Lower Toothed Belt Guard
26 Center Toothed Belt Guard
27 Bolt
• 10 Nm
• Always replace.
28 Bolt
• 10 Nm + an additional 90° (1/4) turn.
• Always replace.
29 Vibration Damper
• Assembly is only possible in one position because of the offset holes.
30 Bolt
• 5 Nm
31 Protective Plate
32 Bolt
• 40 Nm + an additional 180° (1/2) turn.
• Always replace.
• Follow the tightening sequence, refer to => [ Engine Mount and Bracket ] Engine Mount and Bracket.
33 Engine Mount Bracket
• Removing and installing, refer to => [ Engine Mount and Bracket ] Engine Mount and Bracket.