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Rookie 9N Question!

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Robb Bailey

04-13-2002 19:13:49




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Hey Guys,
I'm sure this topic has been discussed a million times before, but I know nothing of tractors and need to fix one quickly for a friend. He has a 9N (or 2N, not sure), which has been 12V converted. He brings it to my house Friday, then can't get it started. He bypasses the coil resistor and it starts, then 10 seconds later, his battery cable hits the exhaust manifold and catches on fire. He goes to NAPA and gets a battery end and coil resistor. I replace the battery cable, and try to put in coil resistor, as soon as screw touches resistor, the ceramic breaks in pieces. I try to be sneeky by wrapping the thing in electrical tape and strap it into place. After running for 30 minutes, the resistor starts smoking. NOT GOOD! He is mechanically disabled and I, as stated, know nothing of tractors. I understand the resistor is there b/c he still has the original 6V coil (front mount) and the voltage needs to be reduced before hitting coil. I would like to get rid of the original coil and put a standard vehicle 12V coil w/ resistor in it. Is this easy to do? Has anyone done a cheap, vehicle coil conversion? Any (I mean ANY) help would be greatly appreciated!
Robb

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ZANE

04-14-2002 05:22:40




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 Re: Rookie 9N Question! in reply to Robb Bailey, 04-13-2002 19:13:49  
You can buy a 12 volt front mount coil. Probably from one of the sponsors of this page.

You can also gut the old coil and solder in a couple of wires and come off an automotive 12 volt coil with built in resistor is you want to go to the trouble. Fill the old coil with silicone glue caulking when you finish the job.

I have done it and have seen it done by a couple of other people independently of my thinking.

Zane

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Ron/PA

04-13-2002 19:19:26




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 Re: Rookie 9N Question! in reply to Robb Bailey, 04-13-2002 19:13:49  
Not sure why the ceramic went to pieces but as for the smoking that is normal. They all smoke for a while after they get warmed up. As far as the coil goes, you can go to a tractor supply store and purchase a 12 volt replacement coil that will fit in place of the 6 volt coil. Hope this is some help
Ron



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Robb

04-13-2002 19:25:00




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 Re: Re: Rookie 9N Question! in reply to Ron/PA, 04-13-2002 19:19:26  
Is this a direct replacement? $? Shape and installed the same? If so, will there still need to be a resistor in the circuit?
Thanks for the reply, and hate to sound pushy, but I'm trying to solve this as quickly as possible,
Robb



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Jack - Illinois

04-13-2002 21:48:34




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 Re: Re: Re: Rookie 9N Question! in reply to Robb, 04-13-2002 19:25:00  
Yes there still needs to be a resistor. My Tisco conversion (Alternator & 12 volt coil) came with a resistor and instructions to leave the old resistor in the circuit also. There have been different opinions on this subject as you will find if you search the archives. Too much resistance - it won't spark. To little resistance - the coil burns up. Be careful coils aren't cheap!
Jack



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