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Ford Tractors Discussion Forum
Show Parts for Model:

Electronic Ignitor

Author  [Modern View]
Jim Wieringa

12-21-2012 14:37:38
99.181.142.148



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Going to install the Pertronix Electronic Ignition in my 1966 2000. Does or is my coil equipped with the Ballast Resistor? The coil is one of those smaller style, approx 4 inches tall. I have seen coils before that have it in writing printed on the outside of the coil, but mine is all rubbed off. Thanks




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Hobo,NC

12-22-2012 19:35:07
98.16.13.38



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 Re: Electronic Ignitor in reply to Ed H.-OH, 12-21-2012 14:37:38  
Quoting Removed, click Modern View to see

A 6V EI will work at 4.5V no problem.... This does not mean I am push'n EI set ups on 6V guys what ever works for ya is good enuff for me... To answer his question If I were in doubt I would use a 6V coil with the proper resistor I can not see were he could go wrong...
I make this statement """ A EI set up suffers form the same issues a points set up suffers from""" Its hard to prove that statement wrong,,, a points guy with any experience trouble shooting can diagnose a simple EI set up once he gets over the skeer factor...

On a 12V EI with a 6V coil,,,,2 separate power feeds are not needed,,, feed the EI off the power source side at the resistor and feed the coil threw the resistor...

Y'all have a Merry Christmas

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Jerry/MT

12-22-2012 08:04:54
206.183.116.145



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 Re: Electronic Ignitor in reply to Jim Wieringa, 12-21-2012 14:37:38  
Check the resistance with a VOM. ~3.2 ohms will be a 12V coil and ~ 1.6 ohms will be a 6 V coil.



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Jim Wieringa

12-22-2012 09:23:02
99.181.142.148



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 Re: Electronic Ignitor in reply to Jerry/MT, 12-22-2012 08:04:54  
Thank you all gentlemen. I have a plan coming together !!!!!!



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JMOR

12-22-2012 09:42:32
72.181.173.171



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 Re: Electronic Ignitor in reply to Jim Wieringa, 12-22-2012 09:23:02  
Quoting Removed, click Modern View to seeIs your plan to supply the coil via the resistance wire & separately supply the module by another copper wire?



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JMOR

12-22-2012 08:54:50
72.181.173.171



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 Re: Electronic Ignitor in reply to Jerry/MT, 12-22-2012 08:04:54  
Quoting Removed, click Modern View to seeNot to disagree with anything you said here, but I would add a 3rd category........most 12v vehicles have coils that are less than 3 Ohms primary resistance and use a resistor or are EI or both, but will not be listed as "6v coils".



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Ultradog MN

12-22-2012 05:34:04
184.100.109.75



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 Re: Electronic Ignitor in reply to Jim Wieringa, 12-21-2012 14:37:38  
When I installed EI in my 68 2000 I did not know about the resistor wire going to the coil.
The tractor was all original including the coil and wiring harness.
I did not change anything else.
It ran excellent.



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JMOR

12-22-2012 05:51:30
72.181.173.171



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 Re: Electronic Ignitor in reply to Ultradog MN, 12-22-2012 05:34:04  
Quoting Removed, click Modern View to seeAre you saying that you powered the EI module AND the coil both through the resistor wire?



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Ultradog MN

12-22-2012 06:26:58
184.100.109.75



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 Re: Electronic Ignitor in reply to JMOR, 12-22-2012 05:51:30  
Yes.



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JMOR

12-22-2012 06:50:28
72.181.173.171



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 Re: Electronic Ignitor in reply to Ultradog MN, 12-22-2012 06:26:58  
Quoting Removed, click Modern View to see

So much for "modules won't work at reduced voltage". If you didn't know, maybe it didn't know either & the old saw, 'if you don't know it, it won't hurt" applies?



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soundguy

12-22-2012 18:09:55
184.247.42.95



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 Re: Electronic Ignitor in reply to JMOR, 12-22-2012 06:50:28  
I bet you those 12v ones have a wider input voltage range than one may think.

say they are using 5v logic.( for arguments sake ) on a 6v system, that doesn't leave much play. on a 12v system.. they are golden. stick in a 7805 and go. input v can be 25v :) ( just for arguments sake.. I know they are not using a 7805, etc.. but same would apply for whatever device methodology to get 4a supply current. ( mind you.. with thermally protected 7805, , you could parallel 5 of them.. :) ;) )

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JMOR

12-22-2012 19:42:59
72.181.173.171



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 Re: Electronic Ignitor in reply to soundguy, 12-22-2012 18:09:55  
Quoting Removed, click Modern View to seeNot than I may think! I expect that all N's, pos gnd, neg gnd, 6v, 12v, front mount, side mount are all covered by two modules. Further I would not expect to find a voltage regulator in these simple modules. :lol:



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soundguy

12-24-2012 12:08:31
173.107.134.31



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 Re: Electronic Ignitor in reply to JMOR, 12-22-2012 19:42:59  
I wasn't talking about you.. :) and no.. i don't think they have a monolithic vr module in there specifically either.. plenty of ways to handle wide range of inputs on chip.. etc.

I would have guessed 4 modules.

2 front, 2 side. one for positing gorund, one for negative ground each.

then again.. I've never seen the front mount module.. is it physically near same size as side?.



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JMOR

12-24-2012 14:11:06
72.181.173.171



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 Re: Electronic Ignitor in reply to soundguy, 12-24-2012 12:08:31  
Quoting Removed, click Modern View to seeDifferent breaker plates & magnet ring in kit, but modules look same except wire colors for POS/NEG.



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soundguy

12-25-2012 09:28:34
107.41.16.187



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 Re: Electronic Ignitor in reply to JMOR, 12-24-2012 14:11:06  
yep, I new the BP would be different. I guess if it's small enough to use trhe same mao no reason not to.

I believe the module in my farmall C would drop into one of my fords.. :) module anyway..



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JMOR

12-21-2012 19:41:36
72.181.173.171



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 Re: Electronic Ignitor in reply to Jim Wieringa, 12-21-2012 14:37:38  
Quoting Removed, click Modern View to seeTech help at Pertronix will steer you right (toll free number). They will tell you that 4 amperes steady state coil current is maximum & will recommend a coil for that. Further, they & your instruction sheet will tell you NOT to power the EI unit by way of that resistive wire that SouNdguy spoke of.



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soundguy

12-21-2012 17:29:41
107.41.77.74



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 Re: Electronic Ignitor in reply to Jim Wieringa, 12-21-2012 14:37:38  
use the coil that the supplier of your e-ignition specifies.

the basic oe ignition coil on a 3 cyl gasser is a 6v coil, on a 12v system, and uses a resistor WIRE to feed the coil.

can't tell you what coil you have in your hand.. etc.



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