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Ford 9N, 2N & 8N Discussion Forum
Order Ford 8N Parts Online

8N 9.2v Voltage Regulator

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Oldroy61

09-07-2019 06:57:55




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Hi
New guy here!
First of all I want to Thank all forum participants that answer questions and try to help others with what they know! :D
My problem today is I bought a 8 volt battery and need a regulator to match ( 9.2- 9.5v )for my 6 volt 8N. If anyone knows where to get them or do I just ask for any 9.2 voltage regulator and rewire accordingly? :?:
Sorry haven't figured out signature yet.

Thanks again 8)

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Oldroy61

09-20-2019 12:09:50




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 Re: 8N 9.2v Voltage Regulator in reply to Oldroy61, 09-07-2019 06:57:55  
Hi again , just want to Thank you all for your help.

Ended up I took the regulator to the electric shop,
they said couldn't do it without generator, should of known.

Anyways back with the generator to shop, generator BAD,

says come back tomorrow.
Next day $50 fixed gen and adjusted regulator.

Runs great, right on 9v , good for me

.

Thanks again 8)

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Oldroy61

09-09-2019 03:47:24




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 Re: 8N 9.2v Voltage Regulator in reply to Oldroy61, 09-07-2019 06:57:55  
Thanks for all replys

I found this on another site, I knew this could be done but forgot. Good Read!

https://www.redpowermagazine.com/forums/topic/60148-farmall-h-6-volt-regulator-to-8-v-battery-how-do-i-adjust/

Duner Wi your post lead me to this post and the charger is $25 on Amazon.

Tim Daley I do have that 9N 2N 8N book and I had a 9N before this .

W_B That was my first thought but its my dad's tractor and he's 84

and it was purse I was breaking in to. :roll:

If I missed anyone Sorry

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Bruce (VA)

09-09-2019 04:15:58




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 Re: 8N 9.2v Voltage Regulator in reply to Oldroy61, 09-09-2019 03:47:24  
The link you provided explains the v/r adjustment correctly.

Pay careful attention to this adjustment: “ If it has the arm, adjustment is made by bending it. Increasing the spring pressure will raise the voltage setting. “

Do you set your ignition points by bending the arm? No, they have an adjustment screw. Because over time , bending doesn’t work.

And another critical piece of information: “ After the settings are done the cover needs to be replaced and the voltages checked again after the regulator temperature has stabilized.”

In other words, when the tractor is good and hot, you will need to remove the cover and quickly make more adjustments.

You will also need to keep checking your voltage output every few months because it will change with both time and temperature. Remember, it’s only .about 2 volts that makes the difference between no charge and a boiled battery.

IMHO…….cleaning up the grounds, replacing the cables and buying a new 6v battery is a lot easier.

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Duner Wi

09-07-2019 18:16:38




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 Re: 8N 9.2v Voltage Regulator in reply to Oldroy61, 09-07-2019 06:57:55  
This might work for you,
https://www.batterystuff.com/battery-chargers/8-volt/
8 volt batteries have been around for long time. Some one must have figured out how to adjust the regulator to charge 8 volt battery.
Never had one myself but neighbor had one on Oliver 77 and he said it worked. Good luck!



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W_B

09-07-2019 17:03:30




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 Re: 8N 9.2v Voltage Regulator in reply to Oldroy61, 09-07-2019 06:57:55  
I suspect you've had issues with starting, right? My advice, worth what you paid for it, take the 8V battery back and put in a 12V kit. They sell one here on YT that works just fine. I did my '48 8N last year and haven't had a second's trouble since. Also tune it correctly, make sure all ignition parts are functioning, clean or rebuilt your carb and all the filters in the system. And, get the manuals.
Good luck with it.

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Tim PloughNman Daley

09-07-2019 16:19:51




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 Re: 8N 9.2v Voltage Regulator in reply to Oldroy61, 09-07-2019 06:57:55  
Why did you buy an 8V battery??? Do you have an 8V charger??? Take the 8V back and exchange it for a GRP 1 6V AG type battery. Next, it isn't the battery that you need the VR for, its the generator. The VR has a terminal for the BAT yes, but it also has one for the GEN FLD and GEN ARM and you don't need to get any special VR either. Why go thru all that when the OEM 6V/POS GRN set up works fine, has for 72 years. An 8V batter isn't going to give you more power. If someone told you to get an 8V battery they either they don't know or are blowing smoke up your wazoo or both. As a newbie, the best investment you can do for yourself is to invest in the essential manuals and read, read, read, religiously.

FORD 8N TRACTOR ESSENTIAL OWNER/OPERATOR/PARTS/SERVICE MANUALS:


Tim *PloughNman* Daley(MI)

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-cobweb-

09-07-2019 10:02:44




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 Re: 8N 9.2v Voltage Regulator in reply to Oldroy61, 09-07-2019 06:57:55  
You can find 8 volt components at some old car sites.....model a and or model t . It is common problem for them.......



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Bruce (VA)

09-07-2019 11:57:17




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 Re: 8N 9.2v Voltage Regulator in reply to -cobweb-, 09-07-2019 10:02:44  
Neither a Model A or a Model T had a voltage regulator. So just what 8v components are you referencing?



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Bruce (VA)

09-07-2019 09:42:00




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 Re: 8N 9.2v Voltage Regulator in reply to Oldroy61, 09-07-2019 06:57:55  
There are a number of valid reasons not to use an 8v battery in your tractor. And you just discovered one of them: no one makes an 8v v/r.


You are correct that 9.5 volts is required to charge an 8 volt battery; your generator puts out 7.5 volts to charge the 6 volt battery. Trying to charge an 8 volt battery with 7.5 volts gets you a perpetually discharged 8 volt battery operating at about 50% capacity. Adjusting the 8N voltage regulator to put out 9.5 volts requires special tools and expertise to do it correctly. Or, you can try it yourself as long as you are prepared for the consequences of failure: a boiled battery, a burned up v/r or no charge at all. Cranking up the output on a 2 or 9N generator will increase the charging voltage but at the cost of overheating the generator. Having a partially discharged 8 volt battery in your tractor is no better than having a fully charged 6 volt battery. At 8.43 volts, your 8v battery is fully charged. And it needed 9.4 volts to get there. But, at 8.04 volts, your 8v battery is only 25% charged. In other words, it’s no better than a 6v battery at that point.

My recommendation is that you return the 8v battery, get a 6v battery and share w/ us the problem you are having that you expected an 8v battery to cure.

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duey

09-07-2019 07:33:27




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 Re: 8N 9.2v Voltage Regulator in reply to Oldroy61, 09-07-2019 06:57:55  
Welcome! You will probably get shouted at for the 8 volt battery.. but most folks either stay with the 6 volts system or convert to 12 volt. But it is your tractor, you can do what you want.

For the 12 volt was the choice, I'm not sure where you would go about finding the regulator you need... short of perhaps adjusting a regulator yourself.

Good Luck and have fun with the tractor!!



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