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Wiring question

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Rob Johnson

03-14-2003 14:00:29




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How many volts should I have comming in and out of my 6v coil. My tractor is an 8n model number 8n283937 with a side mount distributor. It died on me last night for no reason. I am going to try and re-trace all the electrical connections tomorrow. Is there any way to test for a bad coil? Are there any wiring diagrams that I can find online? All help is very much appreciated!




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Ole Henry - (Va)

03-14-2003 18:12:02




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 Re: Wiring question in reply to Rob Johnson, 03-14-2003 14:00:29  
Rob, sounds like it is shorting out in the pass-through bolt on the side of the distributor. I had the same problem last month. Running fine and just quit.

Remove the distributor cap and bump-start the engine until the points open. At the distributor, remove the small wire comming from the coil. Check the CONTINUITY from the post on the outside of the distributor to ground. If it shows a closed circuit, the needle pegs, you've got a short at the pass-through bolt, probably the little cardboard type of insulator where the copper strap from the points connect to the inside of the distributor.

Hope this helps, know the feeling,

John A.

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Rob

03-14-2003 19:38:46




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 Re: Re: Wiring question in reply to Ole Henry - (Va), 03-14-2003 18:12:02  
ok, forgive my ignorance, what is continuity, and how do I check it?



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Dell (WA)

03-15-2003 01:00:11




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 Re: Re: Re: Wiring question in reply to Rob, 03-14-2003 19:38:46  
Rob..... ...continuity is technical talk for continuious electrical circuit. If electrical circuits are NOT continuious, the darn thing won't work. Isn't that amazing?

Cheap $15 voltmeters will measure continuity. $500 voltmeters will be more accurate. You can even use a brakelight bulb to indicate (that means light-up) continuity. If'n it don't light, the circuit is dead, or non-continious.

Or you could also use the Ohm meter option to measure continuity if you don't have any other voltages on the wire circuit.

Gettcha neighbors 9th grade geek kid to show you how..... .....respectfully, Dell

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Rob

03-15-2003 04:36:40




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 Re: Re: Re: Re: Wiring question in reply to Dell (WA), 03-15-2003 01:00:11  
Thanks Dell!! I appreciate you putting into terms I can understand---Rob



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Ole Henry - (Va)

03-15-2003 20:21:22




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 Re: Re: Re: Re: Re: Wiring question in reply to Rob, 03-15-2003 04:36:40  
Rob, sorry to confuse you. What Dell said. Also, theres another way to check for continuity without a meter. Bump start until points open. Unhook the wire at side of distributor, turn the ignition on, touch the wire back to the mounting bolt and look for a small spark or sparks. If sparks are visible, you have a short at the pass-through bolt.

May be easier to check for sparks if you disconnect the wire at coil instead of the distributor. Darker up there.

Hope this helps,

John A.

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DallasGa

03-14-2003 15:28:40




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 Re: Wiring question in reply to Rob Johnson, 03-14-2003 14:00:29  
Ha Rob, If it just up and quit it's probable not the coil, I don't know how to test one, but I'd check those connection first. Go search 8N ford and look for Smith's 8N trator page,Go there and scowl down to FAQs You see wiring diagram listed. Look around while you're there, it's a great 8N site.



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