Oil Pump Timing Chain Overview

Oil Pump Timing Chain Overview






1 Cylinder Block

2 Guide Rail

• Secured to the upper oil pan.

• Oil before installing on the pin.

3 Chain Tensioner

• Secure using a locking pin (T10115).

4 Bolt

• 10 Nm

5 Oil Pump Sprocket

• Removing and installing, refer to the following:

Engine codes CBTA and CBUA, refer to => [ Oil Pump ] Oil Pump.

6 Oil Pump Timing Chain

• From MY 2008 the roller chain has been changed to a toothed chain.

• Removing:

- Remove the engine.

- Remove sealing flange, transmission side.

- Remove the timing chain.

- Remove the chain tensioner - item 3 -.

- Mark the direction of travel.

• Note when installing:

- Install in the original direction of rotation.

- The chain must lie correctly in the tensioning and guide rails.

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

7 Bolt

• 20 Nm + an additional 90° (1/4) additional turn.

• Always replace.

8 Guide Rail

• Oil before installing on the pin.

9 Bolt

• 10 Nm

10 Axial Bearing Disc

• Engages in the groove in the double sprocket - item 12 -.

11 Bolt

• 60 Nm + 90° (1/4) additional turn.

• Always replace.

12 Camshaft and Oil Pump Timing Chains Double Sprocket

• Oil the journal before installing.

• Lubricate the axial bearing disc groove.

13 Gear Shaft

14 Threaded Pin

• 40 Nm

• For the camshaft timing chain tensioning rail.