Removing Crankshaft Sealing Ring - Belt Pulley Side

Make a 3-mm bore at the front of the sealing ring using an angle drill. Grease the drill in order to bind the chips caused by drilling. Screw a sheetmetal screw with a washer (5 x 2) approx. 5 mm into the bore hole.

Fig 1: Locating Sealing Ring And Groove
Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Information
- Work on delicate engine parts must be carried out conscientiously and precisely.
- Use a suitable tray.
- Absolute cleanliness is essential.
Position a lever tool on the tapping screw, (e.g. assembly lever 9182 ), place a wooden wedge between the lever tool and the crankcase and lever off the sealing ring. Carefully remove any residual dirt on the crankshaft flange.

Fig 2: Levering Off 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.
If there are corroded spots on the crankshaft flange, clean them off using a metal-polishing pad (e.g. Nevr Dull, available in car and motor bike accessory stores). Then, carefully degrease the flange and crankcase bore using a clean, lint-free cloth that has been soaked in solvent naphtha or acetone.
Information

Visually inspect the crankshaft flange and crankcase bore for damage.
Check crankshaft flange and crankcase bore for damage.