 Hanging other wiring off the coil |
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| Tdskip |
 Feb 7 2021, 02:52 PM
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#1
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Advanced Member  Group: Members Posts: 3,686 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None 
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I’ve got an intermittent Hot starting issue, not the starter itself, on the new to me 1975. The starter turns over, it’s got fuel so it appears I have a spark issue. I don’t really have any history on the car and noticed that the coil that’s on it is pretty old but also has leads coming off it that are not ignition-based.
That is obviously something that needs to get tracked down because as of right now I don’t know where those are going, but I thought hanging any wiring off the coil was kind of a bad idea, no? |
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Replies(1 - 8)
| Cairo94507 |
Feb 7 2021, 05:57 PM
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#2
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Michael Group: Members Posts: 9,811 Joined: 1-November 08 From: Auburn, CA Member No.: 9,712 Region Association: Northern California
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I agree with you. I would trace those wires to what the heck they are powering. (IMG:style_emoticons/default/beerchug.gif)
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| Tdskip |
Feb 7 2021, 06:23 PM
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#3
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Advanced Member Group: Members Posts: 3,686 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None
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QUOTE(Cairo94507 @ Feb 7 2021, 06:57 PM)  I agree with you. I would trace those wires to what the heck they are powering. (IMG:style_emoticons/default/beerchug.gif) Thanks Michael / hope you got some driving in this weekend. |
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| wattele |
Feb 8 2021, 02:19 AM
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#4
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Newbie Group: Members Posts: 14 Joined: 17-November 19 From: Belgium Member No.: 23,651 Region Association: Europe |
One of the wires is for the RPM meter
I think it is the purple one |
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| Tdskip |
Feb 8 2021, 08:25 AM
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#5
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Advanced Member Group: Members Posts: 3,686 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None
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QUOTE(wattele @ Feb 8 2021, 03:19 AM) One of the wires is for the RPM meter I think it is the purple one Oof! Of course it is, you are correct, I spaced on that. Thanks for the reminder. Still have a +12v connection where I shouldn’t, might be tail lights. |
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| IronHillRestorations |
Feb 8 2021, 08:36 AM
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#6
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I. I. R. C. Group: Members Posts: 6,724 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None
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I’ve seen several fuel pumps powered via the switched 12v on the coil
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| ClayPerrine |
Feb 8 2021, 09:34 AM
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#7
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Life's been good to me so far..... Group: Admin Posts: 15,502 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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QUOTE(IronHillRestorations @ Feb 8 2021, 08:36 AM) I’ve seen several fuel pumps powered via the switched 12v on the coil And as I am sure you will agree, that is a bad idea. Clay |
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| IronHillRestorations |
Feb 8 2021, 09:54 AM
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#8
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I. I. R. C. Group: Members Posts: 6,724 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None
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QUOTE(ClayPerrine @ Feb 8 2021, 07:34 AM) QUOTE(IronHillRestorations @ Feb 8 2021, 08:36 AM) I’ve seen several fuel pumps powered via the switched 12v on the coil And as I am sure you will agree, that is a bad idea. Clay Fo sho |
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| VaccaRabite |
Feb 8 2021, 11:33 AM
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#9
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En Garde! Group: Admin Posts: 13,456 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
Some coils will go through a ballast resister before they get to the dizzy, if you see a lead going to a big ceramic block that's what that is. That is usually for aftermarket distributors though.
Zach |
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