Removing Camshaft Actuator

NOTIFICATION 

Timing not set correctly 

• Risk of engine damage 
• Rough running engine 
• Loss of engine power 
  • Do not use force when fitting the staking tool.
  • Make sure that the gap is equal on both sides.
  • When inserting the staking tools, do not use force to turn the camshafts against any resistance.
  • The engine must be exactly at top dead center.
  • The opposite cylinder must be at ignition TDC.

NOTIFICATION 

Dirt and contamination 

• Risk of damage to units or components 
  • Protect components from dirt and contamination.
  • Clean or replace dirty components.

Information 

Never use the camshaft clamps -T40331- as a counterhold tool for loosening and tightening the camshaft controllers.

1. Turn the crankshaft 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

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

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Markings on camshaft actuator (cylinder bank 1)

3. The markings on the camshaft actuators (cylinder bank 2) -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)

4. Remove stoppers on camshafts -1-  .

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Stoppers on camshafts

   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 and remove screws -2-  .
   4. 4.4  Remove stoppers -1-  .
5. Screw adapter T40331/2 -1-  from tool set > T40331 - camshaft clamps  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 

6. Screw adapter T40331/3 -1-  from tool set > T40331 - camshaft clamps  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  .

7. Install > T40331 - camshaft clamps  .
   1. 7.1  > T40331 - Camshaft clamp  must be inserted.

      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 - Outlet camshaft
      5	T40331/4 - Intake camshaft

      1. 7.1.1 T40331/9 -1-  must be screwed in by hand. Tighten screws on the camshaft clamps -Arrows-  to 9 Nm (6.5 ftlb.)  .
   2. 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	T40331/3
      4	T40331/5 - Outlet camshaft
      5	T40331/8 - Intake camshaft

      1. 7.2.1 T40331/9 -2-  must be screwed in by hand. Tighten screws on the camshaft clamps -Arrows-  to 9 Nm (6.5 ftlb.)  .
8. Secure the crankshaft.

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Screw plug for crankshaft

   1. 8.1  Unscrew screw plug -1-  .
   2. 8.2  Remove holder for vacuum reservoir -3-  .
   3. 8.3  > T40069 - Locking pin  must be screwed into the bore -2-  by hand. Turn the crankshaft back and forth slightly to do this, if necessary.
   4. 8.4  > T40069 - Locking pin  must be tightened to 20 Nm (15 ftlb.)  .
9. > VAS 261 001 - Ring spanner insert, a/f 41  with > T90001 - counterhold tool  must be fitted on the camshaft actuators.

   The > T90001 - counterhold tool  can only be inserted at one position. To do this, the markings -1 and 2-  on the camshaft actuator and chain housing must be aligned.

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Hook wrench T90001 on camshaft actuator

10. Loosen camshaft actuator -1-  .

    Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Camshaft actuator

    1. 10.1  Counter the camshaft actuator -1-  using > VAS 261 001 - ring spanner insert, a/f 41 -3-  and > T90001 - counterhold tool-2-  and loosen using > T90000 - socket E24  .

       Do not unscrew the camshaft actuator from the camshaft. 

    2. 10.2  Mark camshaft actuator and camshafts for re-installation using a colored marker.
11. Lock both chain tensioners.

    Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Fixing device for chain tensioner

    Information 

    The chain tensioner piston is oil-damped and can only be pressed back slowly and with constant pressure.

    1. 11.1  Press the chain tensioner piston -1-  back fully using a screwdriver.
    2. 11.2  Lock the chain tensioner -1-  using > T03006 - locking pin-3-  .
12. Unscrew control valves and remove camshaft actuator from the camshaft and out of the timing chain.

    Make sure that the timing chain does not fall into the chain housing. 

13. Secure the timing chain to prevent it from falling down.