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Ford 9N, 2N & 8N Discussion Forum
Show Parts for Model:

Ford2n positive ground

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Graeme duncan

06-13-2013 07:34:46

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So I just noticed that on my battery the positive lead is on the negative point and vice versa. Is this a positive ground six volt system or did the guy I bought it from put the wires on backwards ?! Can I charge a positive ground system with a regular trickle charger and do I still put positive to positive ?? The battery seems not to be charging when I'm running the tractor so at first thought alternator but now wondering if the points where the wrong way around .

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06-13-2013 22:11:38

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 Re: Ford2n positive ground in reply to Graeme duncan, 06-13-2013 07:34:46  
Know an alternator shop that makes 6 volt one wire output alternators, either positive or negative ground by replacing the parts in a 12 volt alternator. Most of the customers are the roadster crowd.

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Bruce (VA)

06-13-2013 10:53:52

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 Re: Ford2n positive ground in reply to Graeme duncan, 06-13-2013 07:34:46  
I've replied to your previous posts regarding fuel & starting issues. I've attached a link to the 75 Tips to both of my replies.

I'll attach the link again regarding this question; see tip # 60.

Are the links not working for you?

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Graeme duncan

06-13-2013 11:16:20

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 Re: Ford2n positive ground in reply to Bruce (VA), 06-13-2013 10:53:52  
Yes , got it , thanks!

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06-13-2013 08:37:52

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 Re: Ford2n positive ground in reply to Graeme duncan, 06-13-2013 07:34:46  
Originally 6V positive ground.

If you still have a 6V battery, it most likely is positive ground.

In that case, it would be rare that is has an alternator.

It would have a generator instead.

They are truly different animals, so let us know what you have.

As for charging, positive to positive, negative to negative.

No need to remove any cables.

However, make sure you're using a 6V charger if you have a 6V battery!

Post some pics if you want and we can help identify it.

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06-13-2013 08:05:13

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 Re: Ford2n positive ground in reply to Graeme duncan, 06-13-2013 07:34:46  
The output of a battery charger knows nothing and cares nothing about "ground". The charger has a Red POSITIVE cable and a Black NEGATIVE cable.

To connect charger (or jumper cables) to battery, the simple rule is Positive to Positive, Negative to Negative, forget about "ground".

The charger does not see a battery post to frame connection as "ground" but rather as an extension of the connected positive or negative battery post

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R Geiger

06-13-2013 07:44:29

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 Re: Ford2n positive ground in reply to Graeme duncan, 06-13-2013 07:34:46  
If it is 12 volts with an alternator then it should be negative to ground. If the alternator is not charging, take it to an autoparts place and have it checked out.

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