I have a 1970 w108 108.016, inline 6, I got running again after some downtime yesterday. After checking the points, I found that they were way out of adjustment and weren't opening enough, ala no spark.

I decided to set the points this morning, and I try to start the car and it shoots fire out the carbs. I figure the timing is way off since my points adjustment was just by eye yesterday. I set the points with the feeler gauge and reassemble and no start, no backfire, sounds like no spark.

Now I have a new problem, but it's been kind of ongoing and has made troubleshooting the ignition issue very difficult as having multiple simultaneous failures, blah blah...

There are 2 resistors in my car, sometimes they seem to get voltage and other times they don't. This is all with the key in the #2 position. Biggest problem, the resistor nearest the coil nor produces no volts in the run or the start position. Even if I jump it, I can't get the car to start.

I'm pretty sure there is some kind of circuit that is supposed to give the car 12v at the coil while cranking then drops it back down to the 3 or 4 volts seen normally at my coil, but I have not witnessed this via a meter.

I'm thinking there must be some kind of ignition relay(s) that can be replaced in this situation.

The haynes is pretty vague on the subject.


Any help, please?

Enjoy the holiday weekend.