You should get a bunch of responses on this. In my short time of MB gasser ownership I have learned the trigger points are readily accessible once the distributor is pulled but you must NOT use any abrasive to clean them as they are platinum and you will scour the precious metal right off. Fortunately, I did not learn this the hard way but rather from the collective wisdom of this assemblage. If you run a search at the bottom of this page and put in "trigger points" I bet you'll get some very helpful info. Hope you can hold on to your ride
kpb