Well shoot... MSD help for those "in the know", Check my work please... what am I missing? Options

[ThePaintedMan]

Went to wire up my MSD that I purchased from Rob last year finally this past weekend.

I temporarily wired everything like the picture below shows:




Unfortunately (and I guess fortunately) nothing happened. The only difference to the diagram is that I have a Compufire pointless module instead of a Pertronix. Did the troubleshooting steps by checking the wiring over several times, still would only crank but not fire. Then did the unplug ignition coil wire test, turn ignition to on, then touch white wire to ground. I did get a spark. Hooked it all up again and cranked but still no fire.

MSD recommends at that point that the unit be sent back to them. Since I bought it second-hand from Rob, I'm going to assume I'm not eligible for warranty repair. So, before I do, is there any collective knowledge that could point me in the right direction? When everything is wired back the way I had it before, it starts right up, so I know the coil (Bosch blue) and module are still working. Maybe MSDs don't work with Compufires?

[ThePaintedMan]

Yeah, the spark test was positive - I did have a spark from the cap to coil wire when I grounded the white with the ignition on. So the unit is working.

I do have a spare dizzy and still have a couple of sets of points around, so I could try it the way that Jim mentioned.

The case of MSD unit itself is not grounded as it's mounted on those rubber vibration dampers. Instead I had the large black and large red wires connected to the battery as described in the instructions. Does the case still need to be grounded as well?