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Old 10-19-2021, 10:45 AM   #1
samsonized
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Default model a ground cable routing

does anybody have a pix of the ground cable routes on a 30 model a i know it goes to tht top of the bell housing but not sure exactly it goes
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Old 10-19-2021, 10:58 AM   #2
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Default Re: model a ground cable routing

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does anybody have a pix of the ground cable routes on a 30 model a i know it goes to tht top of the bell housing but not sure exactly it goes
originally the model A battery ground cable went from the positive terminal of the battery to the cross member directly behind the battery.

the Model A never came with a ground cable from the frame to the engine. some suggest that one should be added, i think it is a good idea, if that is what you are thinking then put it anywhere between the engine and the frame. pleasing to the eye is the only suggestion i would make.

ou
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Old 10-19-2021, 11:13 AM   #3
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Default Re: model a ground cable routing

this is from the battery to the engine
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Old 10-19-2021, 11:19 AM   #4
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Default Re: model a ground cable routing

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Originally Posted by samsonized View Post
this is from the battery to the engine
are you talking about a ground cable or the main power wire to the starter?

ou
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Old 10-19-2021, 12:00 PM   #5
BRENT in 10-uh-C
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Default Re: model a ground cable routing

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this is from the battery to the engine
Yes, this is likely confusing however it is always best to call them by the correct name. The A-14301 Battery to Ground Connector was used from the + post on the battery to make the grounding connection. The 14300 Battery to Switch Cable connected the - post of battery to the starter switch terminal.
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Old 10-19-2021, 12:25 PM   #6
Patrick L.
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Default Re: model a ground cable routing

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does anybody have a pix of the ground cable routes on a 30 model a i know it goes to tht top of the bell housing but not sure exactly it goes


The battery ground goes to the frame, not the bell housing/engine/transmission.

Many times a 2nd ground cable is added which you may be referring to. That cable is in addition to the original/primary ground cable/strap. And it can go to and from wherever you prefer, frame to somewhere on bell or engine etc. Or right from the battery also.

Just use a heavy enough cable, #1 or #0. Heavier the better.

Last edited by Patrick L.; 10-19-2021 at 05:10 PM.
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Old 10-19-2021, 03:33 PM   #7
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Default Re: model a ground cable routing

The simple second ground lead can go from the positive battery terminal to a bolt holding down the transmission top. It is an easy one to install...
This give you a ground to the frame and a ground to the running gear/engine.
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Old 10-20-2021, 10:25 AM   #8
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Default Re: model a ground cable routing

Just remember that these cars have positive ground systems as other folks have mentioned. I've seen a lot of new owners that aren't aware of this practice. It was more practical on 6-volt systems due to the way the electrons flow and the low amount of voltage used. Ford dropped this practice in 1956 when 12-volt became the norm.

This link to the MAFCA site is a good one. https://www.mafca.com/downloads/Semi...ex%20Janke.pdf
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Old 10-21-2021, 11:29 AM   #9
Jim Brierley
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Default Re: model a ground cable routing

Now might be the time to install a battery cut-off switch. In the cable between the battery and the ground is the best place.
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