Front Crankshaft Seal: Service and Repair

11 14 141 - Replacing radial seal in lower timing case cover





Special tools required:
- 11 2 380 11 2 380 Puller
- 11 2 383 11 2 380 Puller
- 11 2 385 11 2 380 Puller
- 11 3 280 11 3 280 Installer Bush

Note:
This repair instruction is valid for the following engines:

- M50 / M52 / M52TU / M54 / M56
- S52





Remove vibration damper Service and Repair.

Note:
Version where vibration damper and hub are two parts:

Remove hub for vibration damper.





Fit special tool 11 2 383 11 2 380 Puller to crankshaft.





Fit special tool 11 2 385 11 2 380 Puller to crankshaft.

Align groove of special tool 11 2 385 11 2 380 Puller to featherkey of crankshaft.

Note:
Special tool 11 2 385 11 2 380 Puller centers special tool 11 2 380 11 2 380 Puller.





Screw in special tool 11 2 380 11 2 380 Puller until it has made firm contact with radial seal.

Remove radial seal by tightening screw on special tool.





Installation:
Coat sealing lips of new radial sealing ring with oil.

Using special tool 11 3 280 11 3 280 Installer Bush and centering screw, install new radial seal flush with timing case cover.