Timing Chain, Oil Pump

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Fig 1: Identifying Timing Chain & Oil Pump Assembly Overview

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Cylinder Block
Guide Rail
- Secured to the upper oil pan.
- Lubricate before installing the pin.
Chain Tensioner
- Secure using the locking pins T10115.
Bolt
- 10 Nm
Sprocket, for the Oil Pump
- Removing and installing, refer to one of the following:
  - Engine code BGP and BGQ, refer to OIL PUMP .
  - Engine codes CBTA and CBUA, refer to OIL PUMP .
Timing Chain, for the Oil Pump
- From MY 08 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, refer to "Chain Tensioner" in 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 .
Bolt
- 20 Nm + 90° (1/4) additional turn.
- Always replace
Guide Rail
- Lubricate before installing the pin.
Bolt
- 10 Nm
Mount
- Engages in the groove in the sprocket, refer to "Double Sprocket" in item 12.
Bolt
- 60 Nm + 90° (1/4) additional turn.
- Always replace.
Double Sprocket
- Lubricate the journal before installing.
- Lubricate the groove for the mount, refer to "Mount" in item 10.
Gear Shaft
Threaded Pin
- 40 Nm
- For the chain tensioner for the oil pump timing chain.