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2n set up with negative ground?????

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bill w

07-15-2000 18:45:56




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I've finished replacing my head gasket and reconnected everything when I realize that the
previous owner had the negative post as the ground. I rehooked it up that way and when I tried to start it, there was a spark at the dash bolt that the ground is attached to. I tried again and it was weakly trying to turn over. I stopped and noticed that the ground bolt was very hot. Next I switched it to a positive ground and it again weakly tried to turn over and the ground bolt was very hot again.

I'm now at a loss as to what to do or what damage to the wiring and other components I might have caused. I've got the battery out and am charging it. What should I do next. Thanks for any advice. Bill W P.S. I have a 6 volt setup.

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bill w

07-17-2000 20:39:16




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 Re: 2n set up with negative ground????? in reply to bill w, 07-15-2000 18:45:56  
Thanks to all for your advice. I left it with the negative ground setup and clean the connections and got her started. Thanks again.



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Claus

07-16-2000 14:21:28




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 Re: 2n set up with negative ground????? in reply to bill w, 07-15-2000 18:45:56  
When polarizing, do NOT attach the battery lead to the field terminal. You would put the battery potential to ground through the voltage regulator contacts and possibly burn them. On this type of shunt generator, you must attach the battery lead to the armature terminal of the generator for proper polarization.
Happy Motoring
Claus



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Claus is correct........Dell (WA)

07-16-2000 17:41:09




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 Re: Re: 2n set up with negative ground????? in reply to Claus, 07-16-2000 14:21:28  
Pay attention..... .Claus's instructions on how to properly "polarize" a 2N generator is correct. I misread my I&T FO-4 manual. My most profound and humble appoligies to Bill W and anyone else that might have read my drivel and believes that I am infallable and know what I'm talking about..... ..the embarrassed Dell



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Claus

07-17-2000 04:18:12




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 Re: Re: Re: 2n set up with negative ground????? in reply to Claus is correct........Dell (WA), 07-16-2000 17:41:09  
Well, we both missed something. The 2N does not have an external Field terminal anyway. Unless it has been converted to the later model generator. So he cannot go wrong. The only external terminal on the generator is the armature. So the advice is for the 8N crowd that has the 3 terminal generator and voltage regulator.
Happy Motoring
Claus



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Dell (WA)

07-16-2000 01:51:46




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 Re: 2n set up with negative ground????? in reply to bill w, 07-15-2000 18:45:56  
Bill..... .are you in luck. Starter don't care positive ground, negative ground, all the same BUT your generator/regulator does care. All starter cares about is getting enuff amps from the battery. So make certain your battery connections are clean and tight both ends for max amps transfer. Hot bolt means corroded and loose. Fix it.

Your N-Tractor originally came from the factory with a 6 volt positive ground for various esoterric and theoretical reasons having to do with the "Edison Effect" and metalic ion transfer across the sparkplug gap and making sparkplugs last longer. Todays sparkplugs have better materials and its cheeper to just replace 'em when the time comes.

Howsomever, if you decide to return to orginal postive ground configuration (which is recommended), you MUST polarize your generator/regulator to match the battery. "Polarize field poles by momentarily contacting generator field terminal with battery lead"

Hope this helps..... .Dell

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STUNP PULLER

07-15-2000 19:09:38




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 Re: 2n set up with negative ground????? in reply to bill w, 07-15-2000 18:45:56  
CLEAN UP THOSE CABLES AND CONNECTIONS. GOOD LUCK



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bill w

07-15-2000 18:50:19




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 Re: 2n set up with negative ground????? in reply to bill w, 07-15-2000 18:45:56  
Wanted to add that the tractor had run fine with the negative ground setup before I had to replace the head gasket. Bill W



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