Installing Crankshaft Sealing Ring - Belt Pulley Side

Information 

• The standard shaft seal is pressed 12.5 mm in, measured from the end of the flange. The new sealing ring is pressed 14.5 mm in using the special tool assembly sleeve 9610/1 in order to generate a new running track. 

→ Use prescribed tool.

1. Small burred spots or damaged areas on the tools can be removed with a nail file; then whet with an oilstone, fine abrasive or polishing cloth. Remove residual dirt on the tools, e.g. using solvent naphtha or acetone.
   CAUTION: Grease on sealing ring can cause material damage.

   • Damage to micro-sealing lip.

   → Do not oil or grease crankshaft sealing ring.

   → Only coat the crankshaft housing bore with new engine oil.

2. Coat the crankshaft case bore with new engine oil and slide the new crankshaft sealing ring with the taper of the assembly sleeve 9610/1  special tool over the crankshaft flange.
   Fig 1: Identifying Taper Assembly Sleeve And Sealing Ring

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
3. Fit sealing ring with the insertion device of the assembly sleeve 9610/1  .
   Fig 2: Identifying Insertion Device For Sealing Ring

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
4. Check that the sealing ring is seated correctly. To do this, measure at four points, offset by 90°, from the belt pulley attachment surface on the crankshaft flange to the sealing ring (outer radius). → Dimension: 14.5 mm