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Farmall & IHC Tractors Discussion Forum
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farmall 504 electrical, carb

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allnightshifter

01-31-2007 01:52:12




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Has any one changed over to the electronic ignition and coil they sell here, if so are the results good. Also is the zenith a good carb? The one on my 504 was working fine then spit and sputter and backfires, I took it apart and cleaned it but no help. I've had the tractor about a year with no problems until the carb. It looks as if someone was hitting it with a ballpeen hammer for many many years, it is beat up all over the place, even on the brass inlet elbow. I can barely make it out but the brass tag has 377 and 12685 (not real sure about the 5)

Thanks John K

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John T

01-31-2007 07:54:18




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 Re: farmall 504 electrical, carb in reply to allnightshifter, 01-31-2007 01:52:12  
John K., While the quality durability n dependability of an elec ignition box may vary (Ive heard good things about Pertronix), in theory at least they are far superior for their ability to initiate combustion. They can discharge much more energy across a wider spark plug gap for a wider hotter more surface area spark and thats what lites the fire. In addition the timing dont change as any point cam follower wears down and/or the gap changes thickness plus theres no problem with arcing n carbon n burned ignition points which reduces spark energy. Often once a solid state device burns in and settles down it can last a longgggg ggggg g time trouble free.

You get the most bang for the buck when you match up an elec ignition with a high voltage high energy coil and run a wider plug gap. Be sure n match up the elec switch with your polarity and get a coil matched for the switch.

Best wishes

John T

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Puller504

01-31-2007 06:35:40




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 Re: farmall 504 electrical, carb in reply to allnightshifter, 01-31-2007 01:52:12  
I have an electronic ignition I purchased here on my 504. It has been trouble free for 4 years now, it's great! I came back and bought another one for my AC WD, it works as advertised also! My mechanic rebuilt my carb for me. He set it up to run a little rich as we pull both tractors. Don



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