One observation about timing chains using master link vs. making it an endless chain. Did your original timing chain have a master link? If not, then that fact speaks volumes about making a replacement chain endless and not use a master link.

However, if someone is going to use a master link then in addition to making sure the open end of the clip is facing in the opposite direction of engine rotation the sharp edge of the clip MUST face outwards. These clips (both the e-type and c-type) are stamped out when made and there is a round edge (this is the side that was struck by the cutter) and a sharp edge. The sharp edge will provide a larger more sure contact area on the grooves cut into the pin. The sharp edge of the clip can be easily found by fealing it with your finger.

Last, do not twist, deform, or in any manner damage the clip so that it will have its original shape and best chance of staying on the pin grooves.

I am curious about whether or not anyone's MB engine manual goes into the details of using a master link similar to my suggestions? My MB engine manual does not contain any of this info.

Good Luck!

Tom