Removing Sealing Ring For Crankshaft Flywheel

Information 

Here are some pictures showing the engine from the Cayenne V8. The work steps are to be performed in the same way.

1. Remove crankshaft sealing ring.

   Information 

   • If a crankshaft stub is dirty or slightly rusted, this will damage the new sealing ring when it is fitted. 
   • The crankshaft stub must be cleaned before the old sealing ring is removed so that no particles of dirt can reach the engine. 
   • Use a metal-polishing pad (e.g. Never Dull) for this. 
   1. 1.1. Clean rust and dirt off the crankshaft stub (→ see Fig 1).
      Fig 1: Cleaning Crankshaft Stub

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   2. 1.2. Use the drift punch drift punch Nr.167  to make a small hole at a non-rubberised spot (rectangular cut-out in the sealing ring) on the crankshaft sealing ring → see Fig 2.
      Fig 2: Making Small Hole On Crankshaft Sealing Ring Using Drift Punch

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   3. 1.3. Then screw in the extractor tip and knock out the crankshaft sealing ring using the slide hammer kit slide hammer kit Nr.168  ( Extractor tip no. 168).
      Fig 3: Removing Crankshaft Sealing Ring Using Slide Hammer Kit

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.