Installing Camshaft Timing Gear (Sprocket)

→ 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.

→ Reset the timing after working on the camshaft.

→ Observe general warning notes and working regulations.

Fig 1: Exploded View Of Timing Chain And Sprockets

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

1. Double-chain camshaft drive
2. Camshaft sprocket
3. Screw, M12 x 140; as of October 2008: M12 x 110. Tighten fully after setting the timing.  . Tightening parameters are identical.
4. Deflector rail
5. Screw, M8 x 35
6. Camshaft-to-camshaft guide pad

1. Direction of travel

1. Lift timing chain and place 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. Place timing chain on camshaft timing gear.
2. Fit screw for camshaft timing gear and screw it in loosely.
3. Screw in the four screws of the sprockets and camshaft controller as far as possible (it must still be possible to turn the sprockets and camshaft controller to adjust the timing).
4. Set the timing. → 150516 SETTING CAMSHAFT TIMING ON 4.8-LITRE DFI ENGINES . Do not tighten the sprockets and camshaft controller to the final tightening until after the timing has been set.