No spark

[amx69]

I'm usually more of a lurker as you all seem to have it all under control, but I have run into a bit of a problem. I've done several G/B body small block conversions over the years and by this point its pretty much point and shoot for me. This time I bought a 84 Delta ( yes I know its technically not a G-body, but its pretty much functionally identical), pulled out the tired 307 and trans and replaced them with a pretty stock 350 (.030 over) and th350. Everythings in, plumbed and wired and ready to go. Go to fire and nothing. Cranks like a champ, but won't fire.
Its getting gas, the timings on, but no spark. Changed out the Professional Products cd box and dist (known to work as it was in my running AMX when I decided I needed a daily driver and not a poorly disguised street legal? race car) and put in an Accel dist. (bought new and tested by a buddy) and still no spark. The only difference I've seen in this swap was that there were to 2 pigtails that went to the big starter lug rather than the one and the battery cable as per normal. Did I miss something? I'd start tearing hair out, but its pretty much gone anyhoo

 

[81Regal]

Are you getting any voltage to the ignition switch on the collumn?

 

[pontiacgp]

I'll tell you how to fix it after you post some pictures of the AMX....

 

[amx69]

I'm getting a full 12 volts to the coil wire and it drops to 10.5 - 10.8 whilst cranking. Pics of the AMX? Ill try to get some as its currently doing duty holding birdshit off the ground. How bout a vid just after I got her running?

 

[pontiacgp]

I like those AMX and it's sad they closed that company down....

have you removed the cap to make sure the rotor is turning when cranking the engine?

 

[Texas82GP]

Also double check the spring loaded contact or "button" between the coil and the rotor.

 

[ed1948]

My theory is a little rusty but...how do you confirm the timing is 'on' when there is no spark. Did you test the rotor position lines up with #1 ign wire at TDC? And as said before - is the distributor turning? Did you use a spark tester to confirm wires are good? I once had a 73 GMC 3/4t that popped the ignition fuse causing a no start.

 

[amx69]

Actually it was 2 things. I had ganked the PP spark box and dist. off of the AMX along with most of the wiring (easier than doing it from scratch). In the AMX it was wired with a diode to alleviate run on issues. It appears that this won't be necessary in this case. And the second prob. Tex nailed. The new ProForm dist was missing the button and the rubber washer. The folks from Proform are awesome, answered the phone immediately and told me they'll send it out in today's mail. Won't get around to fixing it til the weekend but next week I should have it on the road and I can let my wife have the jellybean back.