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Author Topic:   MSD 6AL wiring question
Gary
Gearhead

Posts: 713
From: Sarasota, Fla. USA
Registered: Jun 99

posted 10-27-2001 07:40 PM     Click Here to See the Profile for Gary   Click Here to Email Gary     Edit/Delete Message   Reply w/Quote
Im hooking up the 6AL box and have a question/s.
I have attached all the wires to the battery and Mallory distributor except the thin red wire which goes to the ingition. Where can or should I connect the red wire at? What happens to the stock ingition wire that runs along the manifold...does it still go to the coil?

Is this the deal: red wire goes to small (I) post on starter solonid from MSD, manifold ingition wire then goes to the coil?...or, im I all confused and have worked on the car to much today....lol
Hows it done guys?
Thanks

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capri man
Gearhead

Posts: 2689
From: doerun, ga.
Registered: Nov 2000

posted 10-27-2001 09:05 PM     Click Here to See the Profile for capri man   Click Here to Email capri man     Edit/Delete Message   Reply w/Quote
you can download the wiring diagrams from msd website. good luck

------------------
mike r
racing is real
everything else is just a game.
81 capri-7.56 @88mph 1/8
1.56 60 ft.

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Gary
Gearhead

Posts: 713
From: Sarasota, Fla. USA
Registered: Jun 99

posted 10-27-2001 09:27 PM     Click Here to See the Profile for Gary   Click Here to Email Gary     Edit/Delete Message   Reply w/Quote
I have a diagram, Im just not 100% as to where to connect the red ingition wire from the box. I want to make sure it is right so I don't hurt the box if im wrong. The diagram say to connect it to the ingition wire on the car, but from which location, the soloniod or at the manifold wiring harness. Maybe both will do the same thing but wanted to make sure.

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capri man
Gearhead

Posts: 2689
From: doerun, ga.
Registered: Nov 2000

posted 10-27-2001 10:03 PM     Click Here to See the Profile for capri man   Click Here to Email capri man     Edit/Delete Message   Reply w/Quote
gary, i think it goes to the pos. side of the coil but dont put it there yet!! i will look at mine tomorrow morning and let you know. mike

------------------
mike r
racing is real
everything else is just a game.
81 capri-7.56 @88mph 1/8
1.56 60 ft.

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Gary
Gearhead

Posts: 713
From: Sarasota, Fla. USA
Registered: Jun 99

posted 10-28-2001 08:24 AM     Click Here to See the Profile for Gary   Click Here to Email Gary     Edit/Delete Message   Reply w/Quote
Still working on this simple wiring task...well for most that is..lol Here is what I have: Stock wiring harness on my 69 Mach. Installing a MSD box 6AL and Mallory unilite distributor. From the MSD-Heavy red wire attached to positive side of starter soloniod, heavy black wire to chassis ground, orange and black wire to coil. White wire to green wire on Mallory, brown wire from Mallory to ground. Now, how does the thin red wire from the MSD get connected to the red wire to Mallory and to the ingition??
Is the engine feed red/green wire used anymore that orignally when to coil?
Anyway, I attached the diagram at the bottom of my page, if you can help please post your suggestion. After I get this right, all I have to do is water the rad, oil prime and add gas and start the engine for the first time!!!
Thanks!! http://hometown.aol.com/garyslight/page1.html

[This message has been edited by Gary (edited 10-28-2001).]

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capri man
Gearhead

Posts: 2689
From: doerun, ga.
Registered: Nov 2000

posted 10-28-2001 09:07 AM     Click Here to See the Profile for capri man   Click Here to Email capri man     Edit/Delete Message   Reply w/Quote
gary, i thought someone would jump in here and help us. i looked at all the different installations and the small red wire always goes to a connection that is hot only when the ign. is on. just find you a wire that is hot when the ign. is switched on and hook it to the red wire on your box and the red wire on your dist. it dont really matter where the phisical point is because the electrical point will still be the same. (i think!! hee hee) good luck

------------------
mike r
racing is real
everything else is just a game.
81 capri-7.56 @88mph 1/8
1.56 60 ft.

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Gary
Gearhead

Posts: 713
From: Sarasota, Fla. USA
Registered: Jun 99

posted 10-28-2001 01:07 PM     Click Here to See the Profile for Gary   Click Here to Email Gary     Edit/Delete Message   Reply w/Quote
Ok, well is the small post letter (I) on the soloniod a good place? I know to hook it where the power is only on with the key on, what I want to know is where it should be. I would like a professional install of this unit (MSD)& distributor. My MSD is only a FT. away from the starter soloniod, I wanted to know if that is a good place for power but at which post. Same is true for the red off the distributor, can I attached that to to the solonoid?...and....what do I do with the exsisting red and green ingnition wire origianlly used going to the coil? Sorry to ask this all a couple of times but haven't yet gotten a straight forward answer. Like building an engine...either it's right or its not! Im running many wires through a loom and would like to run them right the first time and be done with it, im just not 100% on the answer.
Thanks again

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capri man
Gearhead

Posts: 2689
From: doerun, ga.
Registered: Nov 2000

posted 10-28-2001 06:16 PM     Click Here to See the Profile for capri man   Click Here to Email capri man     Edit/Delete Message   Reply w/Quote
gary, i would say get a test light and find the terminal on the selinoid that goes off and on with your ign switch and you can hook both red wires to it. good luck

------------------
mike r
racing is real
everything else is just a game.
81 capri-7.56 @88mph 1/8
1.56 60 ft.

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Gary
Gearhead

Posts: 713
From: Sarasota, Fla. USA
Registered: Jun 99

posted 10-28-2001 06:58 PM     Click Here to See the Profile for Gary   Click Here to Email Gary     Edit/Delete Message   Reply w/Quote
Capri, that was my intention is to hook both distributor red and MSD thin red lead to the small post marked (I)=ignition, that lead is only hot when key is on. I have done the same with my elec. fan and was concerned about stacking to many wires at the soloniod.
Im guessing this elminates the need for the original ignition lead that went to the coil as MSD instructions state only the orange and black wires go to the coil, humm?... but that still doesn't seem quite right
I may have to call MSD tomarrow if no one else replies to this question. I know Im making this freaking harder than it really is..I have a habit of asking the what if's a why's sometimes then get all screwed up....lol
Think I'll have a few beers and forget it for the night

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capri man
Gearhead

Posts: 2689
From: doerun, ga.
Registered: Nov 2000

posted 10-28-2001 07:28 PM     Click Here to See the Profile for capri man   Click Here to Email capri man     Edit/Delete Message   Reply w/Quote
amen on the beer. catch you later. yes the terminal will take the place of the ign switch wire. schematics get confusing sometimes. i run a duraspark ll dist. and the only wires on it are the 2 from the msd box.

------------------
mike r
racing is real
everything else is just a game.
81 capri-7.56 @88mph 1/8
1.56 60 ft.

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69maverick
Gearhead

Posts: 839
From: Thomaston,CT.
Registered: Jan 2001

posted 10-29-2001 10:47 AM     Click Here to See the Profile for 69maverick   Click Here to Email 69maverick     Edit/Delete Message   Reply w/Quote
I didn't read all of the posts but the red wire goes to the old positive coil wire that runs down your intake.

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69maverick
Gearhead

Posts: 839
From: Thomaston,CT.
Registered: Jan 2001

posted 10-29-2001 11:20 AM     Click Here to See the Profile for 69maverick   Click Here to Email 69maverick     Edit/Delete Message   Reply w/Quote
P.S. The wiring diag. on your site is right!

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Gary
Gearhead

Posts: 713
From: Sarasota, Fla. USA
Registered: Jun 99

posted 10-29-2001 11:35 AM     Click Here to See the Profile for Gary   Click Here to Email Gary     Edit/Delete Message   Reply w/Quote
Thanks Maverick, I was going to run the red wire to the starter soloniod ignition post asa there's power there on both run and start.
That way I could rid the engine feed harness and clean it up alittle. I have after market oil/water gauges so the harness then would not be needed....I think...humm? Im wondering if running the red lead from distributor and MSD box to ignition side of soloniod will be ok instead?
Thanks again, for the tip, I was wondering what happened to that wire (red)since it no longer is used on the + side of coil.

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