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Allis Chalmers Discussion Forum

WD Magneto Problem?

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Farmall M Beginner

03-29-2011 15:17:35

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I have a A-C WD and I went out to start it and it would fire but wouldn't run, so I pulled it with another tractor and when I was pulling it, it would run really rough and it backfired so hard it blow off the muffler cap.
I took apart the carb and every thing was clean, so I then turned to the magneto, like an idiot I took off the mag cap before I noticed the spark plug wires where bad, so I replaced the wires, and re timed the mag and now it doesn't have any spark at all?
Would any on know what is wrong? If the timing was off I should at least have spark?.
Also what is the #1 cylinder? I was thinking it was the one closet to the operator?
I haven't check the points or condenser yet.
I'm not very good with mags, I would like to learn some about them but I don't know any one that can work on them.
Thanks for any info

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03-29-2011 19:38:02

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 Re: WD Magneto Problem? in reply to Farmall M Beginner, 03-29-2011 15:17:35  
Did you get the gears timed when you put the cap back on?

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Farmall M Beginner

03-30-2011 13:41:35

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 Re: WD Magneto Problem? in reply to teddy52food, 03-29-2011 19:38:02  
Even if it isn't timed right shouldn't I at least get a spark?
Thanks for every ones help

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03-30-2011 19:03:42

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 Re: WD Magneto Problem? in reply to Farmall M Beginner, 03-30-2011 13:41:35  
If the mag is good it will make a spark. But if the gears are not in time, the rotor is not lined up to a contact in the cap so it has no place to go.

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03-29-2011 17:55:10

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 Re: WD Magneto Problem? in reply to Farmall M Beginner, 03-29-2011 15:17:35  
firing order 1243

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03-29-2011 17:26:26

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 Re: WD Magneto Problem? in reply to Farmall M Beginner, 03-29-2011 15:17:35  
If youve got a belt, belt 2 tractors together. Then start with a wire. Dosent make a difference which ones, Just so you have them in the right fireing order. On a Farmall its 1342. I dont know bout ACs. put a plug in one hole after another till you hear it sound like its trying to fire. Then, put the next wire in clockwise, It should sould like a JD. If not, move the both of them, round the distributor cap clockwise until you hear it trying to fire. When you DO hear it trying to fire, place the other 2 in the right order so that the wires are all in the dist. It ought to take off if nothing is wrong with the dist/mag

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Oliver Al

03-29-2011 16:00:18

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 Re: WD Magneto Problem? in reply to Farmall M Beginner, 03-29-2011 15:17:35  
#1 is in the front of the engine this is the same for all tractors/trucks. Also make sure the firing order is correct I don't know the WD firing order off the top of my head but it my be stamped on the engine by the mag. Did you use copper core wires? Look at posts from a few days ago about that on this board. Remember #1 front #4 rear

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03-30-2011 08:27:56

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 Re: WD Magneto Problem? in reply to Oliver Al, 03-29-2011 16:00:18  
On a Deutz tractor- #1 cyl is closest to the operator. My local dealer always enjoyed telling that to his customers, first time they had that issue.

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03-29-2011 15:53:49

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 Re: WD Magneto Problem? in reply to Farmall M Beginner, 03-29-2011 15:17:35  
If it is one of the 2 common mags they used on the Allis tractors tell me which on it is and send me an e-mail and I'll send you the manual for it if it is one of the common ones. Cost to you is the time to send the e-mail. I have both stored in my computer so I can pass them on to those who need them. If it is the type with the little gear you have to have in in the correct place for which ever tractor you have or it will not run

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