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Farmall & IHC Tractors Discussion Forum
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Magneto vs distributor question

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Charlie

05-18-2004 18:54:08




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I know there has been several discussions here about which is better magnetos or distributors and it seems like most people liked magnetos. However many of the old timers I've talked to prefered distributors and made the effort to add them to their tractors. The original owner of my 43 H was like that. Anyone know what those guys were thinking when they went for the distributors.




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Bill Smith

05-19-2004 12:24:51




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 Re: Magneto vs distributor question in reply to Charlie, 05-18-2004 18:54:08  
Mags were better for hand cranking. Kick backs more likely with distributor (points open and close because of engine rocking and you got spark again with a distributor, unlike a mag witch takes another engine stroke to get spark again after the spark is released). With battery start on the H, not having the mag was not really that big of deal. Probably got switched over when owner had trouble with mag and it was cheaper to just put on the distributor. Distributor was easier to work on to boot.

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CNKS

05-19-2004 06:13:03




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 Re: Magneto vs distributor question in reply to Charlie, 05-18-2004 18:54:08  
I think they just wanted something more "modern", same as when people put "electronic" ignitions on old tractors. Dealers probably had something to do with that too, encouraging the farmer to put on a modern distributer rather than repair the old mag. The mags were really pretty trouble free. And you could start them with a crank. However, I have a Super A with a distributer, and have been too lazy to fix the charging system. When the battery doesn't have enough juice to turn over the engine, it will start with a crank. Of course that won't work if the battery is completely discharged.

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lee

05-19-2004 05:37:09




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 Re: Magneto vs distributor question in reply to Charlie, 05-18-2004 18:54:08  
Cost made them do it. A mag will work without a bat so it's an advantage but cost was higher to fix the mag as opposed to converting it to coil ignition. It also took some complexity out of the system.. The mag has more parts to foul up.



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Haas

05-19-2004 04:58:35




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 Re: Magneto vs distributor question in reply to Charlie, 05-18-2004 18:54:08  
The advantage of the magneto is that it requires no battery for the tractor to run. If the battery is dead, you can crank or pull the tractor to start and it will run just as well with the battery dead. If you have a dead battery with a distributor and ignition coil, difficult to get things going without a good battery. Also, I think the points and condenser in the magneto last a lot longer and in my experience with proper maintenance, not much goes wrong with the mags.

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Jim Becker

05-18-2004 20:41:08




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 Re: Magneto vs distributor question in reply to Charlie, 05-18-2004 18:54:08  
New distributors worked a lot better than worn out magnetos. They were also cheaper than new magnetos.



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James Williams

05-18-2004 19:21:29




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 Re: Magneto vs distributor question in reply to Charlie, 05-18-2004 18:54:08  
They liked the coil on the out side of the distributer,and the points and condenser were more easily accesable,



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