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Old 08-27-2020, 06:47 PM   #1
guy1unico
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Default Positive Ground wiring situation

My friend bought a new 6 volt battery for his 51 Ford. I connected pos to pos and neg to neg. Everything seems to work alright but should I have done pos to neg and neg to pos???
Thank you,
GW
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Old 08-27-2020, 07:03 PM   #2
TJ
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Default Re: Positive Ground wiring situation

Positive goes to ground and negative to the starter solenoid.
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Old 08-27-2020, 07:03 PM   #3
Bob C
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Default Re: Positive Ground wiring situation

Positive post should go to chassis ground.
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Old 08-27-2020, 07:20 PM   #4
guy1unico
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Default Re: Positive Ground wiring situation

What happens if I do NOT put the positive post to the chassis ground?
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Old 08-27-2020, 07:38 PM   #5
JSeery
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Default Re: Positive Ground wiring situation

Then you have reversed the current flow. This will work for some functions like lights, dash gauges, starter, etc. But it will not work correctly for the coil or the generator. It will reduce the coil output around 20%. Is there any reason to not connect it correctly?

If it has an external coil (can shaped coil) you can reverse the terminals so that it will function correctly, if you want it to run it reversed for some reason. Same with the generator, it can be setup to run with the reversed polarity.
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Old 08-27-2020, 07:54 PM   #6
Bob C
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Default Re: Positive Ground wiring situation

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Also the ammeter will read backwards.
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Old 08-27-2020, 08:08 PM   #7
JSeery
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Default Re: Positive Ground wiring situation

Quote:
Originally Posted by Bob C View Post
Also the ammeter will read backwards.
Yes! Thanks Bob.
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Old 08-27-2020, 10:07 PM   #8
guy1unico
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Default Re: Positive Ground wiring situation

Thank you for answering....I'll just go change them and make it correct.
Just wondering what would happen because he does not live right by me. Now I can wait until I get back up there to his house.
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Old 08-27-2020, 10:35 PM   #9
leon bee
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Default Re: Positive Ground wiring situation

The way you first phrased that question makes it sound like you have it correct? You hooked his positive cable to the pos of battery, etc. Or what?
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Old 08-28-2020, 03:26 AM   #10
Charlie Stephens
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Default Re: Positive Ground wiring situation

You may have problems with the radio.

Charlie Stephens
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Old 08-28-2020, 08:14 AM   #11
Thomas911-76
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Default Re: Positive Ground wiring situation

Quote:
Originally Posted by JSeery View Post
Yes! Thanks Bob.
Definitely not necessary to change the ammeter .
I have just changed from negativ to positiv ground. You need the right voltage regulator. The new one can do both systems. Original Ford only work with positiv ground. I have killed 3 of them to get this information .

Regards Thomas
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Old 08-28-2020, 09:16 AM   #12
dave collette
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Default Re: Positive Ground wiring situation

Sorry to tell you this if you hooked it up in reverse you have probably destroyed the voltage regulator.Be prepared to replace it.
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Old 08-28-2020, 09:49 AM   #13
Bob C
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Default Re: Positive Ground wiring situation

Quote:
Originally Posted by Thomas911-76 View Post
Definitely not necessary to change the ammeter .
I have just changed from negativ to positiv ground. You need the right voltage regulator. The new one can do both systems. Original Ford only work with positiv ground. I have killed 3 of them to get this information .

Regards Thomas

I don't think anybody said he needs to change the ammeter.
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Old 08-28-2020, 10:46 AM   #14
JSeery
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Default Re: Positive Ground wiring situation

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I don't think anybody said he needs to change the ammeter.
It is the direction that the current passes through the ammeter that matters, you have to reverse the direction.
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Old 08-29-2020, 03:00 PM   #15
Thomas911-76
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Default Re: Positive Ground wiring situation

Quote:
Originally Posted by Bob C View Post
I don't think anybody said he needs to change the ammeter.
I mean the polarity of the ammeter.
Sorry for my English. I am from Germany.

Regards Thomas
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