Rear Crankshaft Main Bearing Seal: Service and Repair

Removing and installing crankshaft sealing ring on flywheel side

Tools








Preliminary work

1. Remove drive plate or flywheel.

Tools and materials

Required tools








Removing crankshaft sealing ring on flywheel side





1. Using the tool drift punch (1-mm tip) NR.167, beat a small hole into a non-rubberized spot (rectangular window in the ring) of the sealing ring.





2. Screw in the extractor tip. Knock out the extractor tip using slide hammer kit NR.168 in conjunction with the sealing ring.





3. Clean the crankshaft flange The crankshaft flange must not be dirty or rusty. If necessary, clean it with brake cleaner and grind off any rust with a metal-polishing pad (e.g. Never Dull).

Installing crankshaft sealing ring on flywheel side

ATTENTION Damage to the sealing ring!
^ The sealing ring is provided on a sleeve.
^ Never remove the sealing ring from the sleeve.
^ Never deform or touch the sealing lips.
^ Never oil the sealing lips.





1. Connect the sealing ring and sleeve to the tool.





2. Position the centering device on the crankshaft flange. Pay attention to the centering pin when doing this. Tighten the two fastening screws to 23 Nm (17 ft-lb.).





3. Position the retracting bell and tighten the central screw (a/f 19) to 25 Nm (19 ft-lb.).
4. Undo the retracting bell and screw it down.
5. Undo the two fastening screws on the centering device and remove the tool.

Subsequent work

1. Install drive plate or flywheel.