General Automotive Technical Discussion

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Coil questions

Printed From: The Ford Torino Page
Category: Model Specific Forum
Forum Name: General Automotive Technical Discussion
Forum Description: Technical Automotive discussion of anything not specific to mid-size Ford/Merc
URL: https://forum.grantorinosport.org/forum_posts.asp?TID=10025
Printed Date: 03-December-2023 at 4:53AM
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com

Topic: Coil questions

Posted By: Grantorinosport351
Subject: Coil questions
Date Posted: 03-November-2013 at 12:09PM

Had this problem previously when the 351 was in the torino, but where does the positive wire to the coil go? And how many volts are put out to it? I can't try to start it now as I don't have an exaust system on it, but I would like to get it done

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~Bryan
72 gts h-code (formal roof)
67falcon
04 f250 ''the great white''

Replies:

Posted By: californiajohnny
Date Posted: 03-November-2013 at 1:58PM

if i understand your question correctly - the positive wire to the coil goes to the + terminal of the coil the - terminal connects to the distributor , the positive wire runs to the ignition switch which has power when the key is in the on position (usually about 8 volts, 12volts when key is held in the start position)

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JOHN
74 GRAN TORINO S&H CLONE
74 VETTE CUSTOM
90 S10 BLAZER 4X4 LIFTED
77 CELICA CUSTOM
75 V8 MONZA SUPERCHARGED
79 COURIER VERT. SLAMMED
75 VEGA V6 5 SPD
70 CHEV C10 P/U
68 MUSTANG FB CONVERSION

Posted By: Grantorinosport351
Date Posted: 03-November-2013 at 2:02PM

Thanks a lot Johnny, you don't happen to know which wire on the switch it is do you?

-------------
~Bryan
72 gts h-code (formal roof)
67falcon
04 f250 ''the great white''

Posted By: GranTorinoSport
Date Posted: 03-November-2013 at 2:41PM

Bryan,

We have a copy of the 73 Wire Diagram Manual (WDM) which will show you the wiring of the coil and ignition switch:

http://grantorinosport.org/files/73WireDiagramManual_web.pdf" rel="nofollow - http://grantorinosport.org/files/73WireDiagramManual_web.pdf

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Scott Eklund

Webmaster

Posted By: Grantorinosport351
Date Posted: 03-November-2013 at 2:43PM

Thanks a lot.

-------------
~Bryan
72 gts h-code (formal roof)
67falcon
04 f250 ''the great white''

Posted By: GranTorinoSport
Date Posted: 03-November-2013 at 2:46PM

If your car has electronic ignition than it will not have the +12V at start up, only the normal (the option was on points cars and was to help ignition on the weaker systems). The + wire for the coil is a resistance wire and that is what regulates the +12 to about +8 as californiajohnny has advised.

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Scott Eklund

Webmaster

Posted By: californiajohnny
Date Posted: 03-November-2013 at 2:49PM

looking in the book and looking at my old column-- on the switch the row of terminals closest to the side with the mounting bolts (drivers side) it wound be the 2nd terminal up from the firewall end if you have the switch off and can look in at the terminals it's marked I1 (you could only see that with the wire connector plug off) the 3rd terminal up on the same side is the bypass (12volts at start) terminal. as far as the wire color i don't know, i would have to try and look under my dash. hope this helps

-------------
JOHN
74 GRAN TORINO S&H CLONE
74 VETTE CUSTOM
90 S10 BLAZER 4X4 LIFTED
77 CELICA CUSTOM
75 V8 MONZA SUPERCHARGED
79 COURIER VERT. SLAMMED
75 VEGA V6 5 SPD
70 CHEV C10 P/U
68 MUSTANG FB CONVERSION

Posted By: californiajohnny
Date Posted: 03-November-2013 at 3:02PM

in looking at the schematic that scott just posted: it should be a red with a light green stripe (that does sound familiar for the ignition wire color and also shows you bypass circit wire color being brown with a pink stripe

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JOHN
74 GRAN TORINO S&H CLONE
74 VETTE CUSTOM
90 S10 BLAZER 4X4 LIFTED
77 CELICA CUSTOM
75 V8 MONZA SUPERCHARGED
79 COURIER VERT. SLAMMED
75 VEGA V6 5 SPD
70 CHEV C10 P/U
68 MUSTANG FB CONVERSION

Posted By: Grantorinosport351
Date Posted: 03-November-2013 at 6:15PM

Thanks guys this helped a lot!

-------------
~Bryan
72 gts h-code (formal roof)
67falcon
04 f250 ''the great white''

Posted By: Grantorinosport351
Date Posted: 03-November-2013 at 6:19PM

So what I am looking for and all I need to know is that I need the red and green wire connected to the coil?

-------------
~Bryan
72 gts h-code (formal roof)
67falcon
04 f250 ''the great white''

Posted By: Grantorinosport351
Date Posted: 04-November-2013 at 1:54AM

Ok I dug around this morning before leaving for school, and found the wire!! It was cut off underneath the high rise intake and tested it with the switch on and off and it works! So this wire kicks on 12 volts then constantly runs 8? And 8 is the right amount for this coil? I had a light tester, I will test the voltage when I get home.

-------------
~Bryan
72 gts h-code (formal roof)
67falcon
04 f250 ''the great white''

Posted By: Grantorinosport351
Date Posted: 04-November-2013 at 2:02AM

Also the wire was red and green directly from the coil to a connector (right above the motor near the wiper motor) then in the connector it changes to a solid red wire that runs into the fire wall, from then on I am unsure, but that may just be on my chero,but I am pretty sure the wires are all stock.

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~Bryan
72 gts h-code (formal roof)
67falcon
04 f250 ''the great white''