gsl-se addict

iTrader: (3)

Let me try to clear this up. Normally, the green/red wires goes to the leading ignitor (on the inside of the dizzy). The output and power for the ignitor are through the stock harness.

Now in your case:

- You remove the leading ignitor (one facing radiator) and plug the MSD purple/green wires to the red/green wires in the distributor. The stock leading ignitor connector is not connected anymore.

The different options (gutted ignitor, splicing, male disconnects) are just methods of connecting the MSD purple/green wires with the red/green pickup wires in the dizzy.

EDIT: just to be clear. The MSD wires connect to the wires inside the dizzy..not the wiring harness on the car

mikeric

iTrader: (20)

Like I said, reading comprehension must be off, I just do not understand the terms being used, or both. I sware, I'm not stupid, just confused so thanks for bearing with me. From what I understand you are saying is:
1.) The stock harness stays connected
2.) The stock leading ignitor is no longer connected to the harness
3.) Disconnect the red and green so that it is no longer picking up a signal from the stock leading ignitor.
4.) Conect the red and green to the green and purple. So, the green and purple are picking up the signal from the red and green which is connected to the srock connector and harness.

This is different from what I did today I essentually picked the signal up from the leading ignitor.
If I understood you correctly above, I will try that tomorrow. Please correct me if I am wrong. Sorry, years of doing aircraft wiring in the Airforce, makes it hare for me to think of wiring in words rather thank schematics.

Thanks again!

gsl-se addict

iTrader: (3)

I think we still have our wires crossed. See if this helps. If not, I'll draw something up.

Stating with stock setup.

- unplug harness from leading ignitor. This remains unplugged.
- remove the leading ignitor and stick it in your glovebox for another day
- connect the MSD wires to where the leading ignitor was attached to the dizzy

That should do it. Does that make sense?

EDIT: Maybe this will help.



From: https://www.rx7club.com/1st-gen-archive-71/ignition-2gcdfis-diagram-correct-502148/

gsl-se addict

iTrader: (3)

Ignore the wiring on there that looks like it goes from the stock leading coil to the 2nd gen coil. That is incorrect info.

mikeric

iTrader: (20)

Yes, I have the above drawing, but the drawing is missing the only part that I am unsure of. The rest I understand. The drawing has question marks where my question lies and the issue I have I guess is with terminology.

What is the ignitor and how is this removed?
Once it is removed, I should be able to connect to the front connector as the stock harness is no longer being connected there, correct?

I think this whole confusion is due to me not know what the ignitor is and thus not removing it.

gsl-se addict

iTrader: (3)

Okay. I see. The ignitors are the little black boxes on the side of the distributor. The leading is facing towards the radiator and the trailing is facing towards the alternator.

To remove the leading ignitor:
- unplug the harness connector that is on the top of the ignitor
- remove the 2 Phillips screws that go through the ignitor
- pull on the ignitor (outward)

The ignitor will come off. You will see a little connector on the side of the distributor where the ignitor was plugged into. Now, if you go with Jeff20B's approach, you will add the male disconnects to the MSD purple/green wires and you will plug them in to where the leading ignitor was plugged in (side of dizzy). Ypu will have to follow Billy's instructions (remove dizzy cap, rotor, and cover) to see which connection is the red wire and which is the green.

Make sense?

Kent

mikeric

iTrader: (20)

I see said the blind man. This is why I was not understanding why I could not use the connector as the connector is the igniter. Thanks, I will try this tonight.

splat_mat

iTrader: (3)

sorry to dig up a old thread but its better then posting a new one.....

This is a great post for how to set up msd! my question is can i just disconnect the trailing once this is done? i have a msd 6a and a blaster coil and i dont want to use the trailing at all, no real reason i just want to keep it simple.

Correct me if im wrong but the tach draws from the trailing, where can i hitch this to if i remove the coil?

I have also read about people "pinning" the distributor once they put msd on, are they getting rid of just the vacuum advance or both vacuum and mechanical advance?

Thanks guys

t_g_farrell

iTrader: (1)

Just move the tach connection to the leading coil and you'll be fine.

Folks usually pin the dizzy in boosted applications so they don't get unexoected
advanced timing which could be deadly to a boosted engine.

splat_mat

iTrader: (3)

I currently have my vacume advance hitched to the port in the side of the rb manifold is this wrong? Can I just leave the vacuum advance disconected or will that leave me with timing problems?