1. You said new coil. When was new coil added? I added a new coil during points testing, it was an OE Driveworks from advance auto, part #26189 I tried swapping it back for original coil, and there was no change. I have since installed the Pertronix flamethrower coil to go with Ignitor II
2. What did you do with the resistance wire? What, if anything, is it wired to right now? It is still wired in place, to positive on coil, and goes into wiring harness. I believe it goes to starter and to plug in firewall. I have not tried turning it over more than once since Pertronix, because wire is not yet bypassed. I tested new alternator, just to make sure it was in correctly.
3. Are you saying the starter turns over the motor at a good rate? Is the yellow spark seen across a removed spark plug during cranking or ? Yes, it sounds like it is turning in over at a good rate, although my only other thought of a culprit is the starter. Yellow spark seen from a spark plug wire removed at cranking.
4. Did you, at any point, take out the distributor? no
5. Did you add any "ignition" wires? or starter wires? or any wires? no
6. What do the Pertronix instructions say about the resistance wire? Instructions said to remove resistance wire or install relay. I opted for relay incase I had to put it back, and because I don't want to slice up the wiring harness.
Did you adjust the gap on the Pertronix to .030 for sure? as best I can tell, I used the feeler gauge.
7. Is there absolutely no fire when cranked? No backfire at carb or tail pipe? No attempt to start at all? No sputter or odd noise? no backfire, occasional sputter like it wants to start.
8. Can you post good, well lit, clear pics of the distributor and it's wires before you disturb them or add this "relay"? we got a snow storm last night, so as soon as it warms up this afternoon, I will take pictures.
Can you describe exactly how the Pertronix unit and the ignition coil are wired now? I followed Pertronix directions exactly, their leads from unit come to ground and positive posts on coil, and the yellow wire and resistance wire are also on positive post for coil. inside distributor there is a ground to plate, and the unit itself.
9. If there is a special Pertronix for V6, did you get the correct unit? What is the Pertronix part number? Pertronix part number is 36-2945 Ignitor II for 6 cylinder, I didn't think of that, I suppose it could be for inline 6?
Feel free to post any other pics of the motor. Albuquerque snow doesn't last long, I'll update with some pics later today.
Jimmy Deveney ‘66 GMC 3/4 ton pick up 4 speed manual 305E V6