Removing Vibration Damper

Information 

• Do not start the engine while the vibration damper and drive belt are removed. 

Information 

Specifications for wrench sizes (a/f specifications) for screw heads are described as follows:

• Torx screws: (E..) for external Torx, (T..) for internal Torx. 
• Hexagon-head bolts (internal and external hexagon): Wrench size (a/f) 

1. Disconnect vibration damper -1-  .
   1. 1.1. Use special tool turning device 9773 -2-  to turn the vibration damper clockwise until a staking bore in the vibration damper is flush with the crankcase bore.
      Fig 1: Turning Crankshaft At Vibration Damper

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   2. 1.2. Use a short locating pin 9595/1 -1-  to disconnect the vibration damper.
      Fig 2: Disconnecting Vibration Damper

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. Remove the vibration damper -1-  .
   1. 2.1. Unscrew six external Torx screws (E12, M8 x 1 x 25, fine thread) -2-  , pull out the locating pin -3-  and remove the vibration damper.
      Fig 3: Identifying Vibration Damper Screws

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   2. 2.2. Check dowel pin and vibration damper for damage (e.g. cracks, deformation) and replace components if necessary.
   3. 2.3. Replace screws.