911 Carrera (997) F6-3.6L (2006)
Unscrew the central screw on the camshaft adjuster.
6. Remove cylinder head cover.
7. Release the four Torx screws M6 x 16 on the sprocket of the respective exhaust camshaft. Do not remove the sprocket.
8. Remove chain tensioner for cylinders 1-3 or 4-6.
Chain tensioner, cylinders 1-3
Chain tensioner, cylinders 4-6
9. Cylinder bank 4-6 Unscrew guide rail screw M6 on pulley side (hexagon socket a/f 5).
10. Unscrew four Torx screws for exhaust camshaft sprocket. Lift timing chain off sprocket and remove the sprocket. Lay timing chain on the
mounting tab for the sprocket.
11. Remove the four camshaft thrust bearings and the guide rail. Unscrew eight Torx screws, six M6 x 35, two M6 x 40 (screws for guide rail). Lift the
thrust bearing and the guide rail carefully off the mounting points or timing chain.
12. Remove the camshafts. Remove exhaust camshaft, lift timing chain off the camshaft adjuster of the inlet camshaft and remove the camshaft. Lay
the timing chain in the chain housing in the cylinder head.
Installing camshaft - engine removed
Installing camshafts, adjusting timing - engine removed
Caution
Risk of damage due to particles of dirt.
^
Danger of material damage due to blocked oil bores/oil ducts.
-> Absolute cleanliness is essential when working on the engine.
-> Lay removed engine parts on a clean base and make sure to cover them.
-> Use the cover for dust protection when fitting the engine NR.165 on the engine assembly support.
Identification of housings of camshafts: