Installing Crankshaft Sealing Ring

Component overview of insertion tool 

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Insertion tool 9699 with assembly aid 9699/3

1. Fit the > 9699/3 - assembly aid  into the > 9699 - Fitting tool  .

   To do this, unscrew the hexagon-head bolt and replace the insert parts.

2. Small burred spots or damaged areas on the tools can be removed with a needle-point file.

   Then pull off the tool using an oil stone or polishing cloth.

   Remove residual dirt on the tools using solvent naphtha or acetone.

3. Adjust insertion tool for fitting the support sleeve of the sealing ring.

   Unscrew the screw until the groove -arrow-  of the assembly aid -1-  is flush with the contact surface of the sleeve.

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   Adjusting insertion tool for positioning sealing ring

   CAUTION: Damage to the sealing lip. 

   • Leaks 

     → The crankshaft flange and tools must be perfectly clean and free of grease.

     → The sealing ring must be fitted dry, i.e. no oil, grease or other lubricants can be used.

     → The crankcase bore must not be oiled.

     → The sealing ring can only be positioned on the assembly tool using the supporting sleeve.

     → The new crankshaft sealing ring (PTFE) is supplied on a supporting sleeve as a spare part.

     → Do not remove the sealing ring from the supporting sleeve.

4. Slide new crankshaft sealing ring -1-  with support sleeve -2-  onto the > 9699/3 - assembly aid  .

   The collar of the sleeve must be facing away from the tool -inset-  .

   Make sure the sealing ring is dry

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   Preassembling sealing ring with supporting sleeve on insertion tool

5. > 9699 - Fitting tool  is then fitted.

   Check the position of the dowel pin! 

   Secure the insertion tool to the crankshaft flange using cheese head bolts -Arrows-  .

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   Fitting insertion tool on crankshaft flange

   Information 

   • Insertion tool 9699 must be left in place for two to three minutes after fitting the sealing ring so that' the sealing lip can settle into position on the crankshaft flange. 
6. Turn the hexagon-head bolt clockwise as far as it will go.

   Leave the tool in place for two minutes.

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   Pulling in sealing ring

7. Remove insertion tool.

   Turn hexagon-head bolt anti-clockwise until the guide screws are still just visible.

   Loosen the two cheese head bolts and remove the tool.

8. Check that the sealing ring is seated correctly.

   To do this, take measurements at four points 90° apart, from the crankshaft flange surface to the sealing ring (flat surface).

   > Dimension 7 mm +/- 0.3 mm 

9. Leave support sleeve -1-  on the tool after fitting to protect the edges of the toil.

   Using a small screwdriver, carefully lever off the support sleeve at the ventilation bore -arrow-  and remove it.

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Supporting sleeve on insertion tool