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2N 12-volt conversion question

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Lou[NE]

09-05-2001 13:01:13




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I've been trying to re-wire the half-shoed 12v conversion that someone did on my 47 2N, and have run into a question. The conversion wiring diagrams at n-series.com and Brians conversion page both show a 2-connector terminal block, a la the early 8Ns, instead of the 9/2N OEM resistor which has 3 connections on it. The question is, Do I, or do I not, need to use the OEM resistor as well as a voltage-dropping ballast resistor, and, if so, how is it wired? I'm using a 6volt coil.

I'm sure the answer to this is lurking in the archives somewhere, but I couldn't find it.

Thanks for all help, past, present and future.

Lou[NE]

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Thanks...

09-05-2001 16:29:35




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 Re: 2N 12-volt conversion question in reply to Lou[NE], 09-05-2001 13:01:13  
Thanks guys! It appears that the OEM resistor is bad, which would explain why it wasn't being used by whoever did the conversion. I measure 13.5v going in, and 0.13v coming out. I'm not sure how to wire the P1 alternator connection in conjunction with the OEM resistor, but that is another question. The previous converter didn't use the P1 connection at all. One thing at a time.

Thanks again,

Lou

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Phil (AZ)

09-05-2001 14:10:46




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 Re: 2N 12-volt conversion question in reply to Lou[NE], 09-05-2001 13:01:13  
Lou, Yes! you need two in series (like flashlight Bat's). An ICR-13 and existing Ballast will give
you the correct current for a 6 volt Coil

JMHO



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Clint

09-05-2001 13:14:19




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 Re: 2N 12-volt conversion question in reply to Lou[NE], 09-05-2001 13:01:13  
I don't know what type of voltage dropping resistor you are using, so here's how to find out. Tempoarily hook it up without the original, using only your new dropping resistor. If you have no more than 4.5 volts at the coil, you don't need the original resistor in series.



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yes . . . Dell (WA)

09-05-2001 13:14:10




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 Re: 2N 12-volt conversion question in reply to Lou[NE], 09-05-2001 13:01:13  
Lou..... ....to use a 6 volt frontmount ignition coil in a 12 volt conversion, you must use BOTH the OEM ballast resistor mounted on the back side of your dash AND you must ALSO use a 12 to 6 volt converting resistor. Wire them up in series like flashlight batterys.

As a double check, if'n ya did it correctly, you should read about 3.5 volts (4.0 max, 2.5 min) at the coil terminal with the ignition switch on and the points closed. If'n the points are open you will read battery volts. If'n you read any other volts, yer gonna have sparkie problems..... ..Dell

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