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Ballast Resistor


 
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bholtsclaw
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Joined: 05 Feb 2020
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PostPosted: Wed Mar 25, 2020 1:17 pm    Post subject: Ballast Resistor Reply to specific post Reply with quote

Is a balast resistor necessary when doing a 12 volt conversion if the 6 volt coil is replaced with a 12 volt coil. (Ford 8n Tractor)
 
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JMOR
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PostPosted: Wed Mar 25, 2020 1:22 pm    Post subject: Re: Ballast Resistor Reply to specific post Reply with quote

bholtsclaw wrote:
(quoted from post at 17:17:36 03/25/20) Is a balast resistor necessary when doing a 12 volt conversion if the 6 volt coil is replaced with a 12 volt coil. (Ford 8n Tractor)
no, as long asit is a 12v coil labeled no resistor required, such as IC-14 from NAPA. There are coils marked 12v, resistor required.
 
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R Geiger
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PostPosted: Wed Mar 25, 2020 3:34 pm    Post subject: Re: Ballast Resistor Reply to specific post Reply with quote

JMOR wrote:
(quoted from post at 15:22:38 03/25/20)
bholtsclaw wrote:
(quoted from post at 17:17:36 03/25/20) Is a balast resistor necessary when doing a 12 volt conversion if the 6 volt coil is replaced with a 12 volt coil. (Ford 8n Tractor)
no, as long asit is a 12v coil labeled no resistor required, such as IC-14 from NAPA. There are coils marked 12v, resistor required.

Does that hold true for a 8n with a front mount distributor?
 
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JMOR
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PostPosted: Wed Mar 25, 2020 3:43 pm    Post subject: Re: Ballast Resistor Reply to specific post Reply with quote

R Geiger wrote:
(quoted from post at 19:34:54 03/25/20)
JMOR wrote:
(quoted from post at 15:22:38 03/25/20)
bholtsclaw wrote:
(quoted from post at 17:17:36 03/25/20) Is a balast resistor necessary when doing a 12 volt conversion if the 6 volt coil is replaced with a 12 volt coil. (Ford 8n Tractor)
no, as long asit is a 12v coil labeled no resistor required, such as IC-14 from NAPA. There are coils marked 12v, resistor required.

Does that hold true for a 8n with a front mount distributor?
only if it has been converted to use a round can coil. To the best of my knowledge, there is no front mount square coil that is a true 12v (no resistor required).
 
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HCooke
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PostPosted: Wed Mar 25, 2020 3:44 pm    Post subject: Re: Ballast Resistor Reply to specific post Reply with quote

I've been running a 12 volt coil in a 9N for several years with no resistor. YMMV.
 
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JMOR
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PostPosted: Wed Mar 25, 2020 7:53 pm    Post subject: Re: Ballast Resistor Reply to specific post Reply with quote

CVPost-HCooke wrote:
(quoted from post at 19:44:18 03/25/20) I've been running a 12 volt coil in a 9N for several years with no resistor. YMMV.
yep, you can get aroud a problem aas long as you never leave key on when stalled. After all, when running the coil current is very low compared to stalled conditions. I would have to look it up, but memory says 25% or less.
 
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Tim PloughNman Daley
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PostPosted: Thu Mar 26, 2020 3:12 am    Post subject: Re: Ballast Resistor Reply to specific post Reply with quote

FORD N-SERIES TRACTOR BALLAST RESISTOR; BEFORE S/N 8N-263843:


FORD 8N TRACTOR OEM DASH WIRING; BEFORE S/N 263843:


Tim Daley(MI)
 
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