11 22 500 Removing and installing or replacing flywheel (N51)
- 11 4 180
- 11 9 260
- 11 9 265
No steel screws/bolts may be used due to the threat of electrochemical corrosion.
A magnesium crankcase requires aluminium screws/bolts exclusively.
Aluminium screws/bolts must be replaced each time they are released .
Aluminium screws/bolts are permitted with and without color coding (blue).
For reliable identification:
Aluminium screws/bolts are not magnetic .
Jointing torque and angle of rotation must be observed without fail (risk of damage).
Necessary preliminary tasks:
- Remove transmission . See MANUAL TRANSMISSION or AUTOMATIC TRANSMISSION .
- Remove Clutch
Block flywheel (1) with special tool 11 9 260 , use an old transmission screw for this purpose.
Installation:
Replace aluminium screws.
Unfasten flywheel screws.
For tightening torque refer to 11 22 1AZ in 11 22 FLYWHEEL .
Installation:
Flywheel (1) is secured with an alignment pin.
Fit new flywheel screws.
Clean all threads for flywheel screws in crankshaft.
Secure flywheel with existing transmission bolt (1) and special tools 11 9 260 and 11 9 265 .
Installation:
Replace aluminium screws.
Release flywheel screws with special tool 11 4 180.
Installation:
Flywheel is secured with a dowel pin.
Fit new flywheel screws.
For tightening torque refer to 11 22 2AZ in 11 22 FLYWHEEL .
Assemble engine.