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Timing Chain Assembly Overview






Timing Chain Assembly Overview





1 Intake Camshaft Adjuster

With the sprocket

Do not disassemble.

2 Exhaust Camshaft Sprocket

Not pressed onto the camshaft.

When removing, press off lightly, if necessary.

3 Cylinder Head

4 Tensioning Rail

For the timing chain tensioner.

Secured to the cylinder block.

Oil before installing the pin.

5 Double Wheel Sprocket

Securing, refer to => [ Oil Pump Drive Chain Assembly Overview ] Oil Pump Drive Chain Assembly Overview.

6 Timing Chain

Beginning with Model Year (MY) 2008 the roller chain has been changed to a tooth chain.

Removing:

- Work procedure same as for "Adjust valve timing". Refer to => [ Valve Timing, Adjusting ] Adjustments.

- Remove the vacuum pump. Refer to => [ Brake Booster Vacuum Pump ] Brake Booster Vacuum Pump.

- Mark direction of travel.

Note when installing:

- Install in original direction of rotation.

- Chain must lie correctly in the tensioning and guide rails.

- Adjust the valve timing. Refer to => [ Valve Timing, Adjusting ] Adjustments.

7 Strainer

Replace

8 Bolt, 10 Nm

9 Timing Chain Tensioner

Secure with locking pin (T03006).

10 Gasket

Replace

11 Timing Chain Guide Rail

Oil before installing the pin.

12 Bolt, 60 Nm + 90° (1/4) additional turn

Replace

13 Bolt, 60 Nm + 90° (1/4) additional turn

Replace