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12v pos or neg ground on an 8n ?

R

rwt101

Member
I have been looking at a lot of videos on u-tube. And some say they hook up the neg to ground when they change over to 12v. One person put a 12v batt in an 8n with a generator and hooked it up with neg ground and started it. Now all that really confuses me. So what is the right way?
 
(quoted from post at 20:29:04 09/12/17) I have been looking at a lot of videos on u-tube. And some say they hook up the neg to ground when they change over to 12v. One person put a 12v batt in an 8n with a generator and hooked it up with neg ground and started it. Now all that really confuses me. So what is the right way?
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A 12 volt generator would not care but a 12 volt alternator would. An alternator has to have negative ground. IMHO.
 
No "right way". You can make generators work either way very easily. You can purchase alternators for either pos or neg ground or roll your own either way. With alternators, the by far use is neg ground & that makes them cheaper to buy.
 
RW,Alternators can be ether negative ground(most common) or special positive ground and hooked up ONLY in that configuration.If the polarity of a alternator is crossed it will let the smoke out of it and you will have nothing.
 

well, not quite nothing, den. a fried alternator is still worth one whole dollar at my local scrap yard :)
 
(quoted from post at 13:35:11 09/13/17) What about the starter. Will it be affected ?
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it will, but only in a good way, as far as i am aware. it will spin faster :)
 
(quoted from post at 23:29:04 09/12/17) I have been looking at a lot of videos on u-tube. And some say they hook up the neg to ground when they change over to 12v. One person put a 12v batt in an 8n with a generator and hooked it up with neg ground and started it. Now all that really confuses me. So what is the right way?
Click to expand...

If you do a conversion to 12V, I suggest doing a negative ground since that is the current standard practice in the auto industry and there is less chance that someone will screw it up in the future, especially when someone jumps it.

For the most part, the tractor doesn't really care.
 
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