Hey all I recently replaced distributor cap and rotor on my 75 d100 /6 and there is no spark whats so ever. I may have gotten the order wrong on the cap but I would think there would still be spark even if its in the wrong order. This leads me to believe its the button thats failing. How do I diagnose? This is my first time working with a distributor.

thanks

 

Usually, cap and rotor are replaced together. Are you getting spark from the coil?

 

How do you check that? I thought it was the coil and put in a new one but it didnt change anything.

 

Unplug the coil wire from the distributor, stick a spark plug in there, and ground it on the engine somewhere. (DO NOT use your hand to hold it in place. ) Have someone else crank the engine, see if you get spark at the plug.

 

Will do when I get home tmrw. And I’ll be sure to not use my hand but my buddys instead.

 

That'll work.

 

No spark I tried a new coil but no luck. Maybe its the way its wired?

 

Witch ballast resistor do you have? 2 or 4 terminal, Inspect the connections and make sure they aren't heating up(bad connection). Verify you have power going into it in both crank and run.

 

I have a 4 pin ballast and it gets very hot with the key in the run position