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Allis Chalmers Discussion Forum
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Fairbanks-Morse Mag

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got-2-many-tractors

03-24-2008 14:48:36




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I'm having more trouble w/ my magneto...it only puts out spark for a minute or two, than cuts out. I think I need to replace the breaker points & condenser. While at it, I want to buy a new cap & rotor. It is model FM-J4B. Where is the best place to buy these items? I found them on this site, but, the cap alone is $60! I didn't know if anyone else carried them cheaper? I can get the mag rebuilt for $94 + shipping, so, I'm weighing my options. Thanks

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Steve in NJ

03-27-2008 03:57:28




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 Re: Fairbanks-Morse Mag in reply to got-2-many-tractors, 03-24-2008 14:48:36  
We rebuild, service and sell parts for Magneto's. We specialize in F/M mags. Drop us a line if you need help with anything. Be happy to help you out.
Steve@B&B



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Jeff Z.

03-25-2008 04:50:33




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 Re: Fairbanks-Morse Mag in reply to got-2-many-tractors, 03-24-2008 14:48:36  
I never have magneto problems anymore. When one needs service I UPS it to Belanger"s Auto Electric {mainelymagnetos.com} and it comes back like new.
For all my tractor electrical needs I call The Brillman Company 1-888-274-5562. John can answer all questions about electrical problems and the products he sells. He has a catalog worth getting.

Problems solved.



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JMS/.MN

03-24-2008 21:43:29




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 Re: Fairbanks-Morse Mag in reply to got-2-many-tractors, 03-24-2008 14:48:36  
If it runs ok for a while, then kicks out- maybe....heat is building up...ie, coil ($60) is bad...just like on a distributor system. Points are a visual item...are they pitted, scarred? Why do you think the cap is bad? Bottom line- send the mag to a reputable shop if you want to keep the tractor original. Get a definite price for repair. Switching to a distributor system gives you a more dependable starting system, costs bucks, more than fixing the mag.

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Jeff Z.

03-24-2008 18:27:34




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 Re: Fairbanks-Morse Mag in reply to got-2-many-tractors, 03-24-2008 14:48:36  
A rebuild for 100.00 will probably not include a new outer or inner cap. That is the average price for the points, coil and condenser.



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Jeff Z.

03-24-2008 18:25:09




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 Re: Fairbanks-Morse Mag in reply to got-2-many-tractors, 03-24-2008 14:48:36  
Give John Brillman a call. 1-888-274-5562



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greg b

03-24-2008 15:22:52




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 Re: Fairbanks-Morse Mag in reply to got-2-many-tractors, 03-24-2008 14:48:36  
had the same problem so i switched it over to a distributer its a lot cheaper and it runs way better. good luck



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