Removing Actuator For Camshaft (Camshaft Controller)

WARNING: This page is about a different variant/trim than selected.

NOTE: NOTIFICATION
Incorrect handling of crankshafts

Risk of damage to the timing system
→ Never turn the crankshaft against the rolling direction or when the chain tensioner is removed.

→ Proceed carefully with your work.

→ Only turn the engine at the crankshaft.

→ Observe general warning notes and working regulations.

Fig 1: Camshaft Adjustment Components Location

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Camshaft adjustment overview

1	Screw, M12 Tighten fully after setting timing . Always use a new screw.
2	Camshaft controller with integrated hexagon for countering
3	Hydraulic valve for camshaft control
4	Screw, M5 x 12

Turn the crankshaft at the vibration balancer using > 9714 - socket-wrench insert so that the staking bore of the vibration balancer -2- is approx. 45 degrees in front of the lower staking point on the timing-case cover -1- .

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Staking bore 45 degrees in front of overlapping TDC of cylinder 1
Remove chain tensioner.
> 153619 REMOVING AND INSTALLING CHAIN TENSIONER
Loosen all four screws on the camshafts (sprockets and camshaft controllers) by one to two turns. Counter at the respective hexagon.

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Loosening camshafts (illustrated with timing-case cover removed)

Information
- Move the camshafts carefully. Do not force.
- Turn in the other direction if necessary.
Information
- A data matrix code is shown on the staking dihedron of the camshafts.
- This is a square black/white dotted marking used for identification purposes during the production process.
- This marking can be used as an aid when inserting the camshafts into the cylinder head. All four camshafts exert the least amount of pressure on the valves when the data matrix code is facing upwards during installation.
Turn all four camshafts so that all the data matrix codings at the adjustment edges are pointing upwards almost simultaneously (this enables the camshafts to exert the minimum amount of pressure on the valve lifters) > Camshaft position for cylinders 1 to 4 > Camshaft position for cylinders 5 to 8 . The camshafts are turned at their hexagon using an appropriate open-ended wrench > Hexagon at camshaft . Observe identical information on assembling the camshafts.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Camshaft position for cylinders 1 to 4

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Camshaft position for cylinders 5 to 8

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Hexagon at camshaft
Loosen timing chain.
NOTE:
NOTIFICATION
Small parts falling into the timing case
- Risk of engine damage
  → Make sure that no small parts fall into the timing case.

Remove screw for the respective camshaft controller -1- (counter at the hexagon) and carefully take out the camshaft controller with both hands under the timing chain > Removing camshaft controller from chain . Carefully loosen the camshaft controller from behind using a rubber hammer if necessary > Loosening camshaft controller .

Fig 2: Camshaft Adjustment Components Location

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Camshaft adjustment

1	Screw, M12 Tighten fully after setting timing . Always use a new screw.
2	Camshaft adjuster with integrated hexagon for countering
3	Hydraulic valve for camshaft control
4	Screw, M5 x 12

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Loosening camshaft controller

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Removing camshaft controller from chain