300SL (129.061) L6-3.0L (104.981) (1991)
Removing
1. Position piston of cylinder 1 to ignition TDC.
2. Remove front cover at top, refer to Timing Components - Timing Cover - Service and Repair - Procedures See: Timing Components/Timing
Cover/Service and Repair
3. Mark timing chain relative to exhaust and inlet camshaft sprockets (arrows).
4. Unscrew bolt (3); counter-hold armature (4) at flat (arrow) for this step. Pull off armature (4).
5. Unscrew nut (6), take off cover with ring (12).