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Ford 9N, 2N & 8N Discussion Forum
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Re: 8N 12 volt wiring problems

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wasilla1

01-02-2014 14:34:41
24.213.104.85



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It is a front mount distributor.
It is a Delco-Remy alternator. I couldn't find any numbers on it, but post at rear says BAT.

I'm not positive of year of tractor...either a 1947 or 1948. Serial # is hard to read, real faint stamping, but it looks like 8NF1129????

The pic is what the new resistor I put on looks like. I will also try to post a pic of what I assume was a resistor that I took off. It would get cherry red hot and tractor would die. I would wait about 10 minutes for resistor to cool off and tractor would run for a while until it got cherry red hot again and die.

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Bruce (VA)

01-02-2014 14:50:02
24.125.80.178



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 Re: 8N 12 volt wiring problems in reply to wasilla1, 01-02-2014 14:34:41  

See tip # 30 at the link; get rid of that resistor. Get the OEM ballast resistor (as in the picture) and a 12 volt coil.

Re the rest of the wiring, Google "wiring diagrams JMOR" and pick the one that fits your alternator.

Post back w/ results or more questions.

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wasilla1

01-02-2014 14:58:36
24.213.104.85



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 Re: 8N 12 volt wiring problems in reply to Bruce (VA), 01-02-2014 14:50:02  
I put that one on. New block and resistor. It's in the top right center of my drawing on the original post. Internet research led me to believe I needed an additional one which is the voltage reducing resistor on the top left of my drawing.

Thanks,
Bill



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carlntexas

01-02-2014 16:17:48
69.46.55.250



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 Re: 8N 12 volt wiring problems in reply to wasilla1, 01-02-2014 14:58:36  
I'm far from an expert on this,but I did rewire my 8N. It looks to be wired right from your drawing. Try shorting the wire to starter button to a good ground if it starts your button is bad. If this doesn't work you could have the wrong solenoid.

Looks like Jcinky answered better than me while I was typing.
This post was edited by carlntexas at 16:24:16 01/02/14.



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wasilla1

01-02-2014 18:04:45
24.213.104.85



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 Re: 8N 12 volt wiring problems in reply to carlntexas, 01-02-2014 16:17:48  
Thanks. I'll try that tomorrow.



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