Version 2
Vibration damper and hub for vibration damper are one part:
Screw special tool 11 8 190 to special tool 11 8 200.
When releasing and tightening down central bolt, grip special tool 11 8 190 with assistance of a second person.
Insert special tool 11 8 200 in openings on vibration damper and turn counterclockwise so that counter-supports snap into place on vibration damper.
Release central screw (1).
Feed out special tools 11 8 190/11 8 200. Remove central screw and washer.
Carefully detach vibration damper (1) by hand.
Screw out spindle (1) on special tool 11 8 210 as far as possible.
Z3 only:
Screw in spindle (1) on special tool 11 8 210 approx. 15 mm and screw out again only after installation between special tool 11 8 200 and cooler.
Screw special tool 11 8 210 to special tool 11 8 200.
Detach vibration damper by turning spindle (1) on special tool 11 8 210.
Installation:
Check featherkey (1) for damage and correct installation position.
Replace radial seal in lower timing case cover.
Installation:
Align groove (1) in vibration damper to featherkey.
Fit vibration damper.
Installation:
Replace central screw (1).
Install central screw and washer.
Installation:
Screw special tool 11 8 190 to special tool 11 8 200.
Insert special tool 11 8 200 in openings on vibration damper and turn clockwise so that counter-supports snap into place on vibration damper.
Tighten down central screw (1).
Tightening torque, refer to 11 23 2AZ in ENGINE - TIGHTENING TORQUES .