Rear Crankshaft Main Bearing Seal: Service and Repair

11 14 151 Replace crankshaft seal (N55) gearbox side





Special tools required:
^ 11 8 220
^ 11 9 181
^ 11 9 182
^ 11 9 183
^ 11 9 184
^ 11 9 185
^ 23 0 490





Necessary preliminary work:
^ Remove gearbox
^ Remove flywheel

Important!
(Magnet) pole wheel (1) is magnetic.
Keep magnet wheel (1) in a plastic bag away from swarf.





Remove magnet wheel (1) from crankshaft.





Release screw on pulse sensor (1).

Slide pulse sensor (2) upward





Important!
Drill size maximum 2,5 mm.
Remove swarf immediately.

Drill a hole with a drill (1) in the radial shaft seal (see arrow).

Important!
Immediately carefully remove swarf on the radial shaft seal (1).








Screw in special tool 23 0 490 in direction of arrow.

Drive out radial shaft seal with impact weight in direction of arrow.

Important!
Immediately carefully remove residual swarf.





Prepare radial shaft seal (1) on special tool 11 8 220.

Position the radial shaft seal (1) with special tool 11 8 220 on the crankshaft.








Brush radial shaft seal (1) over the special tool 11 8 220.

Move radial shaft seal (1) parallel up against the crankcase.





Fasten special tool 11 9 182 with special tool 11 9 184 on the crankshaft.

Installation Note:
Prepare special tool 11 9 181 for installation.





Connect special tool 11 9 185 onto special tool 11 9 181.





Pull on radial shaft seal with special tool 11 9 181 and 11 9 185 in combination with special tool 11 9 183.





Screw in radial shaft seal with special tool 11 9 183 to limit position.

Remove all special tools.





Assemble engine.