Problem 1- I am an electrical Moron. No offense intended to other morons

Problem 2- The more I search and look at diagrams the more I'm not sure what I am doing.

We have a 72 swinger with 4 wire ballast that I installed an MSD on. Car has been apart for 18 months and I can't remember where the wires go. Mainly just the one Brown wire that fed the original coil.

I have the 4 ballast wires and the small red from the MSD all bugged together over by the ballast resistor. But do I still hook the brown wire to the plus side of the coil? Or did I just have that disconnected at the coil and was it replaced by the black & orange coming to the coil from the new MSD?

Thanks for your help.

Rick

The only wires connected to the coil are the orange and black wires from the MSD box. The old ignition power wires (brown and dark blue if memory serves) that went to the ballast resistor feed the little red wire to turn on the MSD.

_________________
Joshua

Thanks Josh. After I posted and looked again at the MSD instructions, that is what I was leaning towards too.

Glad to have your expert advice

Rick

Well, it fired up and ran on the 1st try. Left it run 20 minutes to break in the cam and it sounds pretty good. Distributor was in right on the first try too!
New water leaks, oil leaks ! I must be doing something wrong !

Thanks again for your help Josh!

Rick

You're welcome! I had a buddy in LA call me just before 5 this evening to ask how to connect his tachometer with the HEI system I helped set up.

Now I need to crack open CharlieS' very old MSD-7 to see if I can make it work again. Hopefully nothing rare or expensive is bad.

_________________
Joshua

Me too

_________________
Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 225 nitrous
64 Valiant Signet
64 Valiant 4dr 170

That "new" water leaks was supposed to be "no" water leaks !

Rick