Checking camshafts of cylinder bank 4 - 6

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Remove fixing pin. Move camshafts of cylinder bank 4 - 6 to basic position. Turn crankshaft clockwise until the bore 1 TDC (top dead center) in the belt pulley is aligned with the fixing bore on the crankcase. Position or fix with fixing pin (short) of special tool 9595 or 9595/1.

Fig 1: Aligning Belt Pulley Bore 1 With Fixing Bore On The Crankcase
Courtesy of PORSCHE OF NORTH AMERICA, INC.

Fig 2: Positioning Crankshaft With Short Fixing Pin
Courtesy of PORSCHE OF NORTH AMERICA, INC.
Check basic camshaft position of cylinder bank 4 - 6. The groove in the camshaft must face inward towards the crankcase.
View from the belt pulley side

Fig 3: Check Basic Camshaft Position Of Cylinder Bank 4 - 6 (View From The Belt Pulley Side)
Courtesy of PORSCHE OF NORTH AMERICA, INC.
If the allocation is correct, at the same time, the narrow segment of the exhaust camshaft on the opposite side must face the cylinder head cover. Refer to Fig 4.
View from the flywheel side

Fig 4: Check Basic Camshaft Position Of Cylinder Bank 4 - 6 (View From The Flywheel Side)
Courtesy of PORSCHE OF NORTH AMERICA, INC.
Position special tool, adjustment device 9612/9, on the cylinder head and fasten with a hexagon-head bolt M8 x 30.

Fig 5: Fastening Special Tool 9612/9 On Cylinder Head (1 Of 2)
Courtesy of PORSCHE OF NORTH AMERICA, INC.

Fig 6: Fastening Special Tool 9612/9 On Cylinder Head (2 Of 2)
Courtesy of PORSCHE OF NORTH AMERICA, INC.

NOTE: If the special tool cannot be inserted in the cylinder head for reasons of space, proceed as follows: Insert a suitable piece of wood between the cylinder head and the side member as a support. Press the piece of wood forward and simultaneously insert the special tool. Do not use force when positioning the special tool. It should be possible to fit the special tool and hexagon-head bolt with ease.