Installing Camshaft Timing Gear

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Information

The tightening specifications for the basic engine are stored centrally.

> Refer to 1X001N Technical values in the appropriate service information.

> Refer to 2X001N Technical values in the appropriate service information.

> 1001IN TIGHTENING TORQUES, TIGHTENING SEQUENCES AND ASSEMBLY OVERVIEWS

Tightening torques and assembly instructions for other assemblies (e.g. chassis, electrics, transmission or body) or for peripheral engine equipment can be found in the corresponding documents.

Fig 1: Timing Chain And Sprockets Components Location

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Timing chain and sprockets

1	Double-chain camshaft drive
2	Camshaft sprocket
3	Screw, M12 Tighten fully after setting valve timing.
4	Deflector rail
5	Screw, M8 x 35
6	Camshaft-to-camshaft guide pad
A	Direction of travel

Lift timing chain and fit camshaft timing gear carefully on the camshaft. In order to have sufficient play in the timing chain, turn the loosened camshaft controller back and forth if necessary. Fit timing chain on camshaft timing gear.
Fit screw for camshaft timing gear and screw it in loosely.
Screw in the four screws on the sprockets and camshaft controllers as far as possible (it must still be possible to turn the sprockets and camshaft controllers to set the timing).
Set the timing.
> 150516 SETTING TIMING FOR CAMSHAFTS

Do not tighten the sprockets and camshaft controllers to the final tightening torque until the timing has been set.