Checking Timing Of Camshafts

WARNING: This page is about a different variant/trim than selected.

Turn the crankshaft clockwise until the marking on the vibration damper -1- is positioned at TDC -2- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

TDC marking on vibration damper
The markings on the camshaft actuators (cylinder bank 1) -1 and 2- must be aligned with the reference points on the camshaft housing -Arrows- . Turn the crankshaft one further turn clockwise if necessary.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Markings on camshaft actuator (cylinder bank 1)
The markings on the camshaft actuators (cylinder bank 21 -1.and 2- must be aligned with the reference points -Lines- on the camshaft housing.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Markings on camshaft actuator (cylinder bank 2)
Remove stoppers on camshafts -1- .
1. 4.1 Release and disconnect quick connector -3- .
2. 4.2 Move vacuum hoses -4- aside so that the stoppers on the camshafts -1- are accessible.
3. 4.3 Unscrew screws -2- .
4. 4.4 Remove stoppers on camshafts -1- .
Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Stoppers on camshafts
Screw adapter T40331/2 -1- from > T40331 - camshaft clamp tool kit into the camshaft housing on cylinder bank 1 and tighten to 9 Nm (6.5 ftlb.).

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Adapter on camshaft housing, cylinder bank 1
Screw adapter T40331/3 -1- from > T40331 - camshaft clamp tool kit into the camshaft housing on cylinder bank 2 and tighten to 9 Nm (6.5 ftlb.).

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Adapter on camshaft housing, cylinder bank 2

Information

The camshaft clamp must be easy to insert and must not be fitted using a striking tool.

Information

It may be necessary for another person to carefully position the camshafts at the actuators using > T90001 - counterhold tool and > VAS 261 001 - Ring wrench insert, a/f 41 .

Insert > T40331 - camshaft clamp .

7.1 Insert > T40331 - camshaft clamp .

Cylinder bank 1 > Camshaft clamps on cylinder bank 1

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Camshaft clamps on cylinder bank 1

1	T40331/1 - The letter "A" must be facing you
2	T40331/9
3	T40331/2
4	T40331/5 - Exhaust camshaft
5	T40331/4 - Intake camshaft

7.1.1 T40331/9 -1- must be screwed in by hand. Tighten screws on the camshaft clamp -Arrows- to 9 Nm (6.5 ftlb.).

7.2 Cylinder bank 2

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Camshaft clamps on cylinder bank 2

1	T40331/1 - The letter "B" must be facing you
2	T40331/9
3	T40331/2
4	T40331/5 - Exhaust camshaft
5	T40331/4 - Intake camshaft

7.2.1 T40331/9 -2- must be screwed in by hand. Tighten screws on the camshaft clamp -Arrows- to 9 Nm (6.5 ftlb.).

Secure the crankshaft.
1. 8.1 Unscrew screw plug -1-
2. 8.2 Remove holder for vacuum reservoir -3- .
3. 8.3 Screw > T40069 - locking pin into the bore -2- by hand.
  Turn the crankshaft back and forth slightly to do this, if necessary.
4. 8.4 Tighten > T40069 - locking pin to 20 Nm (15 ftlb.).
Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Screw plug for crankshaft

NOTIFICATION

Timing not set correctly
- Risk of engine damage
- Rough running engine
- Loss of engine power
  1. → Do not use force when fitting the staking tool.
  2. → Make sure that the gap is equal on both sides.
  3. → When inserting the staking tools, do not use force to turn the camshafts against any resistance.
  4. → The engine must be exactly at top dead centre.
  5. → The opposite cylinder must be at ignition TDC.
If the staking tools can be inserted as described, the timing is OK.
If the staking tools cannot be inserted as described, the timing must be set.