Oil Pump Drive Chain Assembly Overview

Oil Pump Drive Chain Assembly Overview





1 Cylinder block

2 Guide rail

• Secured on the upper section of the oil pan.

• Lubricate the pin before installing.

3 Chain tensioner

• Secure with locking pin (T10115).

4 Bolt, 10 Nm

5 Oil pump sprocket

• Removing and installing, refer to one of the following:

• With engine codes BGP, BGQ and BTK, refer to --> [ Oil Pump, Engine Codes BGP, BGQ and BTK ] .

• With engine codes CBTA and CBUA, refer to --> [ Oil Pump, Engine Codes CBTA and CBUA ] Oil Pump, Engine Codes CBTA and CBUA.

6 Oil pump drive chain

• From Model Year (MY) 2008 the roller chain has been changed to a toothed chain.

• Removing:

- Remove the engine.

- Remove the control housing cover.

- Remove the timing chain.

- Remove the chain tensioner - item 3 -.

- Mark direction of travel.

• Note when installing:

- Install in original direction of travel.

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

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

7 Bolt, 20 Nm + 90° (1/4 turn) additional turn

• Always replace.

8 Guide rail

• Lubricate the pin before installing.

9 Bolt, 10 Nm

10 Axial bearing disc

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

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

• Always replace.

12 Double wheel sprocket

• Lubricate the journal before installing.

• Oil groove for axial bearing disc - item 10 -.

13 Journal for the double wheel sprocket

14 Pin, 40 Nm

• For the timing chain tensioner.