Move Camshafts And Crankshaft To Basic Position

1. Turn crankshaft clockwise until the bore 1 OT (top dead Centre) in the belt pulley is aligned with the fixing bore on the crankcase. Position or fix with fixing pin (short) of special tool 9595.
   Fig 1: Turning Crankshaft Clockwise Until The Bore 1 OT (Top Dead Centre) In The Belt Pulley Is Aligned With The Fixing Bore On The Crankcase

   Courtesy of PORSCHE OF NORTH AMERICA, INC.
   Fig 2: Installing Special Tool (9595) Into Belt Pulley

   Courtesy of PORSCHE OF NORTH AMERICA, INC.
   NOTE:

   • The basic camshaft setting can be checked only after removal of the camshaft closure caps.
2. Remove camshaft closure caps above the cylinder head oil extraction pumps. The closure cap of cylinder bank 1 - 3 is located on the flywheel side and the closure cap of cylinder bank 4 - 6 is located on the pulley side. Drive awl into Centre of the closure cap and lever off the cap.
   Fig 3: Removing Camshaft Closure Caps

   Courtesy of PORSCHE OF NORTH AMERICA, INC.

   Drawing shows closure cap of cylinder bank 4 - 6 (pulley side)

3. Check basic camshaft adjustment.

Basic camshaft adjustment of cylinder bank 1 - 3 

For adjustment, the groove in the camshaft must face outward toward the cylinder head cover.

Fig 4: Locating Groove In Camshaft - Cylinder Bank 1-3

Courtesy of PORSCHE OF NORTH AMERICA, INC.

View from the flywheel side

If the position of the camshafts is incorrect, remove fixing pin at the pulley and rotate the crankshaft 360° clockwise.

Basic camshaft adjustment of cylinder bank 4 - 6 

For adjustment, the groove in the camshaft must face inward toward the crankcase.

Fig 5: Locating Groove In Camshaft - Cylinder Bank 4-6

Courtesy of PORSCHE OF NORTH AMERICA, INC.

View from the belt pulley side

If the position of the camshafts is incorrect, remove fixing pin at the pulley and rotate the crankshaft 360° clockwise.