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12 volt Conversion

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Micah

05-08-2006 12:09:40

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Hi all, has been a while since I have visited. Have been busy running and fine tuning my 8n project. With a lot of help from all of you, she is running and working every weekend we make it to our property. I have a couple of questions on 12 volt conversions.

1. This past weeknd, I managed to damage my 6 volt coil. Since I usually run it on a 12 volt battery most of the time anyway, can I safely put a 12 volt coil on it? Will I still need a ballast resistor? Will I need a different condensor with a 12 volt coil? Do you forsee a problem running it with a 12 v coil, 12 volt battery, until I manage to hook up an alternator?

2. I am going to put an alternator on it this summer. Is there a cheap way to do it? I have seen kits that range from $140 to $200. Anybody aware of a cheaper kit? or a cheaper way to do it. I do not have trade in for an alternator so that will be pricey to do it that way.

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LarryNAA

05-08-2006 15:57:30

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Re: 12 volt Conversion in reply to Micah, 05-08-2006 12:09:40

While it is a personal choice to convert to 12V, here is my experience: I went to one of the suppliers listed on this site, and they sold me a kit that converted to 12V (positive ground) and a solid state ignition. Since then (5 yrs) I have never even had to think about my points or condenser, even if I (gasp) leave the tractor in the rain. In fact, every single time I've had Starting Trouble, when I look into the gas tank, I discover that all the gas was somehow replaced....by air. Then I add some gas, and she fires right up. Personally, I had good luck w/ Genesee Products (they sold the kit) and while it might not be cheap, the conversion made me happy. Happy is good.

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soundguy

05-08-2006 12:24:28

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Re: 12 volt Conversion in reply to Micah, 05-08-2006 12:09:40

If it is a sidemount job.. and you have a 12v battery you run it from.. then use a napa IC14SB coil and -NO- resistors. if it is front mount.. get a 12v tisco style coil, and then use a 1/2 ohm / 20watt resistor in line with the coil, and -NO- other resistors. You can make a 1/2 ohm 20w resistor by parallelling (2) 1-ohm/10w resistors. the part number for a 2-pack from radio shack is: 271-131 Power resistors.

Lots of times you can get alts from junkyards that have been tested for 10-25$ Make your own bracketry.. etc..

Soundguy

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Micah

05-08-2006 13:07:59

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Re: 12 volt Conversion in reply to soundguy, 05-08-2006 12:24:28

Any advice on specific alternators? Or is the a gammet I can use as long as it has an interal voltage regulator?

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souNdguy

05-08-2006 16:24:30

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Re: 12 volt Conversion in reply to Micah, 05-08-2006 13:07:59

You would really have to look to find a alt that still used an external regulator.. probably an old chrysler or jap model.

Just get a 10 or 12 SI gm/delco alternator... I prefer the 3 wire jobs vs the 1 wire jobs. On the 3 wire units.. you hookup the charge line, a sense line, and then an exciter line. The upside is they start charging at about 300+ rpm. The 1 wire jobs are only 1 charge wire to hookup.. but may need as much as 1000-1800 rpm to initially start to charge.. ( but once charging.. will charge down to low rpms.. etc.. )

The other downside to an alt is that you will have to get a pulley to match your tractors wide belt..

Soundguy

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Geryvo

05-08-2006 18:54:41

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Re: 12 volt Conversion in reply to souNdguy, 05-08-2006 16:24:30

Where do these wires go to, I have a 2n with an alternator on it, there is a wire from the lug on the back that's hooked to the positve terminal on the solenoid. There is a plug in on the side of the alt. that I believe are labeled R-1 and F-2.Which of these goes to what?

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Bob

05-08-2006 23:09:57

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Re: 12 volt Conversion in reply to Geryvo, 05-08-2006 18:54:41

Here we go again...

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jared johnston

05-11-2006 14:36:38

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Re: 12 volt Conversion in reply to Bob, 05-08-2006 23:09:57

Sorry I sent the wrong response to you. I am converting a Ferguson TO-35 to 12 volt and O have the alternator mounted and ready to go. I have an external regulator where my ignition, ammeter, etc is all hooked up and I am wondering if I can get rid of this and replace it with a terminal block? Any suggestions.

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jared johnston

05-11-2006 14:33:38

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Re: 12 volt Conversion in reply to Bob, 05-08-2006 23:09:57

Ahhh just what I have been looking for. I have heard some techniques but the leave out the regulator and I don't think I need that if I am using the alternator. My Fax number is the same as my home and I have to switch it over. I work out of my home so I should be here most of the day tomorrow. Thank you very much!

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soundguy

05-09-2006 05:15:12

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Re: 12 volt Conversion in reply to Bob, 05-08-2006 23:09:57

Just never gets old does it.... It's kinda like pouring water into a cup with a small hole in the bottom eh?

Soundguy

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