got my new used truck today, its an 85 durango S-10. I got it for real cheap cuz it quit running a few months ago. he seems to think the timing chain went out, but I just learned the distributor still spins, jumped time? perhaps but i have noticed I'm not getting spark either. so can anybody tell me how the coil works on this? its got power from ignition to one of the 4 wires that plug in the top and the reast i dont know what they are for. is there anyway to test the coil with a testlight? I dont have an extra hand around to help so some tricks would be helpfull. it cranks over allright, I dont hear any horrible noise from that.