Pertronix Ignition Users: Please Advise
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
For purposes of clarification, the 1283 module is 6 volt correct? It's listed 49-53 Ford, so I'd think so, but. There's a guy at the FordBarn who has roasted three modules or somesuch, and thinking this might be why?
1281 is 12 volt.
1281 is 12 volt.
Logistics Pro
Joined: Nov 2011
Posts: 4,685
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From: Northville, MI
https://www.summitracing.com/parts/pnx-1283
It looks like the 1281 is 12v but for 1957-74 Ford/Lincoln/Mercury/Pantera V8.
Pertronix 1281: Ignitor Kit 1957-74 Ford/Lincoln/Mercury/Pantera V8 | JEGS
FTE Chapter Leader
Joined: Dec 2001
Posts: 3,636
Likes: 11
From: Crossville, Tn
1283P6 is for the six volt.
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Senior User
Joined: Sep 2006
Posts: 198
Likes: 1
OK, I'm back among the living for a moment.
Thank you all, you've given me a lot of things to look at.
Flathead V-8, 12 volt negative ground.
All 3 ignitors are stamped 1283. One works well enough to get me home in a pinch, the other 2 are stone dead.
The resistance from the inside of the distributor to negative battery is .9 ohm.
I'll get my act together today and check the voltage.
My wiring is as follows:
ignition switch (key) to coil +
red ignitor wire to coil +
black to coil -
braided ground wire inside distributer to ignitor plate
There is no dedicated ground wire to the distributor.
coil resistance is 1.9 ohm, within spec according to the instructions and a v-8 engine. No ballast resistor
Thank you all, you've given me a lot of things to look at.
Flathead V-8, 12 volt negative ground.
All 3 ignitors are stamped 1283. One works well enough to get me home in a pinch, the other 2 are stone dead.
The resistance from the inside of the distributor to negative battery is .9 ohm.
I'll get my act together today and check the voltage.
My wiring is as follows:
ignition switch (key) to coil +
red ignitor wire to coil +
black to coil -
braided ground wire inside distributer to ignitor plate
There is no dedicated ground wire to the distributor.
coil resistance is 1.9 ohm, within spec according to the instructions and a v-8 engine. No ballast resistor
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
It should be OK, Pertronix doesn't want to see more than 8 amps through the primary circuit. 12V / 1.5 ~ = 8 amps. Bubba recommends using something like the blue Bosch coil, with an internal primary resistance of 1.5 ohms, and a ballast resistor, for a total of around 3 ohms. The ignition ballast in my slick has been bypassed for almost 20 years with a Pertronix I ignitor so I dunno.
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Senior User
Joined: Sep 2006
Posts: 198
Likes: 1
I ran a dedicated ground wire from the distributor to the negative battery terminal and reinstalled Ignition #1, the one that has worked but runs rough. Did some cleaning and whatnot as well with the hopes of improving the the ground.
A meter across the + and - battery terminals fluctuates wildly while the engine is running, although this was not the case a month ago when I was checking the charging system.
It does not hold any voltage long enough the get a clear reading on a digital meter but best I can tell it fluctuates between 11 and 19 volts. Many, many times per second.
A meter across the + and - battery terminals fluctuates wildly while the engine is running, although this was not the case a month ago when I was checking the charging system.
It does not hold any voltage long enough the get a clear reading on a digital meter but best I can tell it fluctuates between 11 and 19 volts. Many, many times per second.
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Fleet Owner
Joined: Jul 2004
Posts: 27,294
Likes: 1,055
From: NM
How old is the alternator? That sounds like a bad regulator, or worn brushes. Voltage spikes like that will kill electronics. That sounds like your problem.
Ted, just to clarify, Bubba recommends the Bosch coil that has 3 ohms internal resistance, with no external ballast.
Ted, just to clarify, Bubba recommends the Bosch coil that has 3 ohms internal resistance, with no external ballast.
Fleet Owner
Joined: Jul 2004
Posts: 27,294
Likes: 1,055
From: NM
Is your alternator feeding the battery directly, or is it connected under the dash like the generator was? I'd suspect a loose connection under the dash, if connected there, or a bad ground on the alternator case if not. 1-wire or 3-wire alternator?
edit: you aren't running alternator current thru a circuit breaker, are you?
edit: you aren't running alternator current thru a circuit breaker, are you?
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