Removing Crankshaft Sealing Ring

Information 

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

View Of Crankshaft Sealing Ring -1- On Crankshaft Flange: 

Fig 1: Identifying Crankshaft Sealing Ring

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

→ Carefully remove drill chips

→ Drill carefully

1. Spot-drill the crankshaft sealing ring -1-  at two opposite positions -arrow-  using a greased drill bit (ø 2 mm) and carefully remove drill chips.
   1. 1.1. Use a battery-powered screwdriver -2-  or a small power drill for drilling holes.
      Fig 2: Drilling Crankshaft Sealing Ring

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. Pull out crankshaft sealing ring -2-  .
   1. 2.1. Screw the extractor tip of the Impact Puller Nr. 168-1 -1-  into the bores -arrows-  alternately and pull the crankshaft sealing ring out evenly.
   2. 2.2. Alternatively, screw two tapping screws into the bore holes.
   3. 2.3. Pull crankshaft sealing ring out alternately using Slide Hammer Kit Nr. 168  at the tapping screws.
      Fig 3: Pulling Out Crankshaft Sealing Ring

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   CAUTION: The crankshaft flange can be damaged if not cleaned correctly.

   • Leaks

   → Never use an abrasive or polishing cloth or brushes with metal bristles.

   → Follow cleaning instructions.

   WARNING: Caustic fluids

   • Danger of chemical burns

   → Avoid contact with caustic fluid.

   → Wear personal protective gear.

   → Ensure that there is good ventilation.

   → If you do come into contact, wash off immediately with plenty of warm water and contact a doctor if necessary.

3. Clean the crankshaft flange.
   1. 3.1. Carefully clean the flange and crankcase bore using a clean, lint-free cloth soaked in solvent naphtha or acetone.

      Information 

      Visually inspect the crankshaft flange and crankcase bore for damage.

4. Check crankshaft flange and crankcase bore for damage.
   1. 4.1. Remove traces of corrosion on the flange using a metal-polishing pad.
   2. 4.2. Then, carefully clean the flange using a clean, lint-free cloth that has been soaked in solvent naphtha or acetone.
   3. 4.3. Leave to dry off for at least three minutes to ensure that the vapors of the cleaning agent do not damage the new crankshaft sealing ring (sealing lip).