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8n Electrical Issues


 
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JohnDeereJimOhio
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Joined: 03 Jul 2012
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PostPosted: Wed Apr 10, 2013 8:24 am    Post subject: 8n Electrical Issues Reply to specific post Reply with quote

I found an 8n for 500 bucks in good shape. oweber
says he just spent around 750 in it re-doing
electrical and carb and some other things and his
wife said it has to go. He said it runs fine then
burns the coil out. He said its a 6v system. I think
I can buy it and sell it and make a few bucks for
some other projects but what do you think is wrong
with it?
 
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Royse
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Joined: 17 Jan 2011
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Location: Michigan

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PostPosted: Wed Apr 10, 2013 8:30 am    Post subject: Re: 8n Electrical Issues Reply to specific post Reply with quote

Excessive coil current. If it is still 6 volt as he said, they may have left
the original ballast resistor (on the back of the dash) out of the circuit.
 
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Bruce (VA)
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Joined: 24 Feb 2003
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PostPosted: Wed Apr 10, 2013 8:33 am    Post subject: Re: 8n Electrical Issues Reply to specific post Reply with quote

" He said it runs fine then
burns the coil out"

Front or side coil?

The most likely cause is leaving the key on.

If it has a front coil, the next likely cause is no ballast resistor or bypassing the ballast resistor.

Google 'wiring diagrams JMOR' and find the one that fits the tractor.
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JohnDeereJimOhio
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PostPosted: Wed Apr 10, 2013 8:36 am    Post subject: Re: 8n Electrical Issues Reply to specific post Reply with quote

At 500 is it a good deal? Decent metal.. Tires are all holding air but nothing special...
 
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Randy-PA
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Joined: 19 Oct 2011
Posts: 53
Location: Waterford, Pa.

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PostPosted: Wed Apr 10, 2013 8:45 am    Post subject: Re: 8n Electrical Issues Reply to specific post Reply with quote

I would scoop that tractor up in a heartbeat! Very Happy
Like others have already said: check the balast resistor
 


Last edited by Randy-PA on Wed Apr 10, 2013 8:53 am; edited 1 time in total
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souNdguy
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PostPosted: Wed Apr 10, 2013 9:36 am    Post subject: Re: 8n Electrical Issues Reply to specific post Reply with quote

if it's only issue is burning the coil out.. and it runs 'ok' and looks 'ok' then 500$ is awesome.

most liekly it is a wireing issue.

like coil is wired hot al the time.. not switched.. or if a front mount.. as said.. might not have the ballast ressitor.. if it is 12v.. may be wrong coil / resistor combo.

you can likely make 1000$ off it by buying at 500 and selling at 1500 and just checkignthe wireing and adding a coil or resistor.. net profit of maybee 950$
 
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JohnDeereJimOhio
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PostPosted: Wed Apr 10, 2013 9:49 am    Post subject: Re: 8n Electrical Issues Reply to specific post Reply with quote

Here is a pic of it

 
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Bruce (VA)
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PostPosted: Wed Apr 10, 2013 10:13 am    Post subject: Re: 8n Electrical Issues Reply to specific post Reply with quote

The tractor is well worth $500.

And you are doing the gentleman a favor; if he couldn't get it running after dropping $750 in it, you are saving him money & frustration.

For some folks, keeping an old tractor running would be like me trying to play golf.
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souNdguy
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PostPosted: Wed Apr 10, 2013 11:02 am    Post subject: Re: 8n Electrical Issues Reply to specific post Reply with quote

it's a lil ugly.. but I'd have arm wrestled you .. and cheated. to win it for 500$

frankly.. for 500$.. if it ran and had no tin I'd have gotten it.. and i don't even particularly like N's.. :)

the engine alone is worth it.
 
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HCooke
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PostPosted: Wed Apr 10, 2013 3:29 pm    Post subject: Re: 8n Electrical Issues Reply to specific post Reply with quote

Yep, that's a good deal. Google 'JMOR Wiring diagrams' and you will find the wiring diagram for that tractor.
 
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