Replacing Stock Cool with MSD Blaster Coil
Thread Starter
Racer
Joined: Feb 2002
Posts: 322
Likes: 0
From: Alexandria VA
Replacing Stock Cool with MSD Blaster Coil (Car wont shut off)
I am wiring a whole MSD system into my 74 L48. It says to wire the positive line to the old coil into the MSD 6A box. I have TWO positive wires it seems. Which one should I use, and why do I have two? Here's a pic...
I went ahead and replaced it and just spliced both wires into the MSD 6AL and the car runs, kind of. It doesn't shut off unless I disconnect those wires :) Any idea where I went wrong?
[Modified by pingdashf, 2:52 AM 6/19/2002]
I went ahead and replaced it and just spliced both wires into the MSD 6AL and the car runs, kind of. It doesn't shut off unless I disconnect those wires :) Any idea where I went wrong?
[Modified by pingdashf, 2:52 AM 6/19/2002]
Thread Starter
Racer
Joined: Feb 2002
Posts: 322
Likes: 0
From: Alexandria VA
Re: Replacing Stock Cool with MSD Blaster Coil (pingdashf)
I read in another thread that one of the two wires is the ignition and the other goes to a ground somewhere? Any idea which is which?
Drifting
Joined: Jan 2002
Posts: 1,645
Likes: 11
From: Schaumburg IL
Re: Replacing Stock Cool with MSD Blaster Coil (pingdashf)
If I remember the hookup correctly......
1. The ignition switch wire (+) runs to the "turnon turnoff I/P of the MSD. It's the one with the asbestos insulation on it. Look at the hook up diagram in the manual.
2. The other wire on your coil (-) is the feed from the points. That goes to the trigger I/P of the MSD. This is what triggers the MSD box to fire.
3. The MSD box has it's own coil lines that run back to the coil.
Good luck.
1. The ignition switch wire (+) runs to the "turnon turnoff I/P of the MSD. It's the one with the asbestos insulation on it. Look at the hook up diagram in the manual.
2. The other wire on your coil (-) is the feed from the points. That goes to the trigger I/P of the MSD. This is what triggers the MSD box to fire.
3. The MSD box has it's own coil lines that run back to the coil.
Good luck.
