Installing Crankshaft Sealing Ring

WARNING: This page is about a different variant/trim than selected.

NOTE: Incorrect tool

Risk of damage to components
→ Use prescribed tool.

> 9699/3 - Assembly aid-5- must be prepared.

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Insertion tool 9699 with assembly aid 9699/3

Unscrew screw -1- .

> 9699/3 - Assembly aid-5- must be inserted into the sleeve -2- of the > 9699 - insertion tool .

Screw in screw -1- by hand.
Adjust insertion tool for fitting the support sleeve of the sealing ring.

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Insertion tool for positioning sealing ring

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

The crankshaft sealing ring must not be coated with lubricant for assembly.
Slide new crankshaft sealing ring -1- with the supporting sleeve -2- onto the > 9699/3 - assembly aid . Make sure that the collar of the sleeve is facing away from the tool.

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Crankshaft sealing ring with supporting sleeve on insertion tool
> 9699 - Insertion tool must now be fitted. Then, check the position of the dowel pin. > Insertion tool on crankshaft flange
Secure the insertion tool to the crankshaft flange using bolts -Arrows- .

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Insertion tool on crankshaft flange
Pull in crankshaft sealing ring.

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Installing crankshaft sealing ring

Screw in screw on the > 9699 - insertion tool until the crankshaft sealing ring is pulled in fully.

> 9699 - Insertion tool must remain fitted for two minutes.

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

Loosen both cheese head bolts and remove the tool.
Check that the crankshaft sealing ring is seated correctly.

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Installation dimension of crankshaft sealing ring - transmission side

Measure dimension -A - at four positions offset by 90° -Arrows- .

> Dimension 7 mm +/- 0.3 mm

If dimension -A - differs from the required value at one or more points: Fit the tools again and pull the crankshaft sealing ring in fully.
Leave support sleeve -1- on the tool after fitting to protect the edges of the tool.
Using a small screwdriver, carefully lever off the supporting sleeve -1- at the ventilation bore -Arrow- and remove it.

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Supporting sleeve on insertion tool