This important device is not immune to problems as the older diesel engines age!
The timing device installed in the W115, W116, W123 and early W126 with OM615, OM616, and OM617 engines from 1969 to 1985 is somewhat a mystery to many owners. Maybe they have seen it (while rebuilding their vacuum pump) or maybe they have seen pictures of it but may not be aware of what it does or potential problems associated with it.
Problem & Solution
Common among these chassis:
W115
W116
W123
W126
The associated YouTube video will give you a quick overview of its functions; but watch Kent's on demand video to learn the parts that make up this device, what it specifically drives, and some of the problems you may be faced with. Don't think it can have any problems ? Think again... He will take one apart on the bench to show you the real issues.