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K4B3 Magneto- Which tractor does it go too?

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01-03-2003 19:59:32

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I have a K4B3 Fairbanks-Morse magneto. What tractors could these be found on? I knew Fairbanks-Morse was a popular brand for AC tractors. Any information including value of the mag would be greatly appreciated. Thanks, Luke

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Steve in N.J.

01-04-2003 20:40:25

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 Re: K4B3 Magneto- Which tractor does it go too? in reply to Luke, 01-03-2003 19:59:32  
I'm not sure what model might have used the "K" series Fairbanks mag, but the F/M number is for an AC machine. The "K" is the series of mag, the 4 means it's for a 4 cylinder engine, the "B" means it's a flange mount, and the "3" is the customer # which the customer or "user" was Allis Chalmers. Maybe someone can identify which model the "K" series was used in... Steve B.

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greg r

01-05-2003 16:04:05

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 Re: Re: K4B3 Magneto- Which tractor does it go too? in reply to Steve in N.J., 01-04-2003 20:40:25  
We had one on a 39 AC B.

I was told they were used on
M Moline R and Z tractors too.

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David Lewis

01-06-2003 16:48:25

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 Re: Re: Re: K4B3 Magneto- Which tractor does it go too? in reply to greg r, 01-05-2003 16:04:05  
I just put one on my just-restored 1940 AC B and it works really well - big blue spark etc. Had a heck of time timing it, until I realized I had it firing on the exhaust stroke, not the compression stroke. My tractor is smarter, and older than I am! David

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