Installing Camshaft Controller For Cylinder Bank 2 (Left)

→ Never turn the engine at the crankshaft without a chain tensioner.

→ Never turn the crankshaft against the direction of rotation.

→ Always counter the sprockets when performing assembly work on them.

→ Make sure that nobody starts the engine or pushes the vehicle while in gear when the chain tensioner is removed. To prevent this, stick a warning note on the steering wheel or ignition lock.

Information 

For tightening torques, tightening sequence and assembly overview, see → 1001IN TIGHTENING TORQUES, TIGHTENING SEQUENCES, ASSEMBLY OVERVIEWS

1. Crankshaft -1-  secured at "TDC" position with locking pin T40069  .
   Fig 1: Identifying Locking Pin T40069

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. Camshafts secured at "TDC" position using camshaft clamps T40133  (-arrows-  ).
   Fig 2: Locating Camshaft Clamp T40133/2

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
3. Fit timing chain on the camshaft controller -A-  and fit the camshaft controller on the camshaft. Check the following while doing this:
   1. 3.1. The timing chain must be "tight" on the guide rail -arrow-  .
   2. 3.2. The timing chain must be held tightly "by hand" in -direction of arrow-  .
      Fig 3: Fitting Camshaft Controller

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
4. The groove -1-  in the camshaft controller must be opposite the setting window -2-  .
   Fig 4: Identifying Groove In Camshaft Controller Opposite Setting Window

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
5. Insert camshaft sprocket into the timing chain and position the camshaft sprocket on the camshaft. Check the following while doing this:
   1. 5.1. The marking point -1-  must be opposite the setting window -2-  .
      Fig 5: Identifying Marking Point Opposite Setting Window

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
6. Loosely screw in screws -1-  and -2-  . It should still be possible to turn the camshaft controller and camshaft sprocket on the camshaft without tilting.
   Fig 6: Identifying Camshaft Controller And Camshaft Sprocket

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
7. Using a screwdriver -1-  , press the guide rail for the chain tensioner for the left timing chain in as far as it will go. Then lock the chain tensioner with the locking pin T40071  .
   Fig 7: Identifying Chain Tensioner For Left Timing Chain

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
8. Counter-hold tool 3036  must be positioned on the camshaft controller.

   Counter-hold tool 3036  must be pressed in -direction of arrow-  . Then check that the timing chain is "tight" on the guide rail. If the timing chain is still "loose", the camshaft sprocket must be moved by one tooth.

   Get a second mechanic to use the counter-hold tool 3036  to keep the timing chain pretensioned in -direction of arrow-  .

   Fig 8: Countering Camshaft Controller

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
9. Tighten screws as follows while still keeping the camshaft sprocket pretensioned:
   1. 9.1. Tighten intake camshaft screw to 80 Nm (59 ftlb.)  .
   2. 9.2. Tighten outlet camshaft screw to 80 Nm (59 ftlb.)  .

   Information 

   To loosen the screw for the camshaft controller or camshaft sprocket, never use camshaft clamp T40133  as a counter-hold tool.

10. Tighten screws to the specified final tightening torque. To do this, counter using counter-hold tool 3036  or pin wrench 3212  .
    1. 10.1. Turn intake camshaft screw a further 90 °  . Counter using counter-hold tool 3036  while doing this.
    2. 10.2. Turn outlet camshaft screw a further 90 °  . Counter using the pin wrench 3212  while doing this.