Removing Sealing Ring

→ Only use tools approved by Porsche.

→ Always ensure that the tool is seated correctly.

→ Protect the body and interior of the vehicle from damage with protective covers.

→ Cover delicate components with cardboard or sheetmetal panels.

Information 

Always fit crankshaft sealing ring dry and without grease.

Information 

• Work on delicate engine parts must be carried out conscientiously and precisely. 
• Use a suitable tray. 
• Absolute cleanliness is essential. 

1. Remove sealing ring.
   1. 1.1. Fit a 2-mm drill bit in a battery-powered screwdriver or small drill. Grease drill bit so that any chips produced will stick.
   2. 1.2. Drill a hole at the front of the sealing ring.
      Fig 1: Drilling Hole On Sealing Ring

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   3. 1.3. Impact puller Nr.168-1 -1-  with the screw tip must then be screwed into the bore hole and the sealing ring -2-  can be pulled out carefully.
      Fig 2: Pulling Out Sealing Ring

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   CAUTION: Crankshaft flange not cleaned correctly

   • Risk of leaks (loss of engine oil)
   • Risk of corrosion

   → Never use an abrasive or polishing cloth or brushes with metal bristles on the crankshaft flange.

   → Follow cleaning instructions.

   → Remove corroded spots using a metal-polishing pad only (for example Never Dull  , available in car and motor bike accessory stores). Then, carefully clean the flange and crankcase bore using a clean, lint-free cloth soaked in solvent naphtha or acetone.

2. Clean crankshaft flange and crankcase bore carefully.

   Information 

   Visually inspect the crankshaft flange and crankcase bore for damage.

3. Check crankshaft flange and crankcase bore for damage.

   The sealing faces must not be damaged.

   1. 3.1. Small burrs can be removed using an oilstone (not on the sealing faces).