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Allis Chalmers Discussion Forum
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questionon B magneto

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loveshisallis

01-28-2008 13:32:18




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ook a non working mag apart (was not working) filed and gapped the points, and got spark now. My question is, is therr supposed to be a little ( 1/2 tooth or so) play in that small steel gear that sits just on top of the points? Also, is there a sure fire way to tiem the gears when putting the main cap back on?
thank You




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loveshisallis

01-29-2008 14:47:20




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 Re: questionon B magneto in reply to loveshisallis, 01-28-2008 13:32:18  
Thanks for all the good replies on my question on the magneto.

Maybe I should ask my quesiton another way. On the driven end, the steel pinion gear, you can wigggle it from side to side about one tooths worth. so, is this too much play, or doesn"t it matter?



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Dick L

01-30-2008 06:54:23




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 Re: questionon B magneto in reply to loveshisallis, 01-29-2008 14:47:20  
Without having it in my hand I would say the the bushing is bad. It should not have any side movement on the shaft. If that is what you are seeing.



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loveshisallis

01-30-2008 15:20:48




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 Re: questionon B magneto in reply to Dick L, 01-30-2008 06:54:23  
Hi Dick L;

Right. You can turn this pinion gear side to side about one tooths worth. is there a fix for this?



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Dick L

01-30-2008 19:36:06




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 Re: questionon B magneto in reply to loveshisallis, 01-30-2008 15:20:48  
Most anything can be fixed but probly not something that you would do without having done a few and fixed them so they couldn't be fixed. If you know what I mean. I would take it apart and find the cause even if I could not fix it in the end. With it that bad what do you have to loose. What you will gain is an understanding of how it is put together. The only problem with that is I have no idea what kind of money you can justify putting into the magneto. What I did was to buy around ten magnetos on ebay only to find that to some a (hot mag) was one they had swiped some where. I have made up four out of the ten and still have boxes of parts. I have bought several more but made sure I did not pay much for them.

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loveshisallis

01-31-2008 09:39:20




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 Re: questionon B magneto in reply to Dick L, 01-30-2008 19:36:06  
Thanks for the insight into that Dick. I am getting ready to take it apart as I love to learn about stuff anyhow. I did file the points and got to to "kinda" spark every few revolutions or so. I live on a budget so we shall see!

Do you know why that steel pinion would have play? Just thinking a loud.



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Jeff Z.

01-28-2008 18:32:17




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 Re: questionon B magneto in reply to loveshisallis, 01-28-2008 13:32:18  
Here is a magneto site you might want to save in you files.

http://www.worldpath.net/~thompson/acb/magtiming/magtiming.htm



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morton

01-28-2008 17:46:39




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 Re: questionon B magneto in reply to loveshisallis, 01-28-2008 13:32:18  
You wont get very far from filing the points, if anything, that'll make it worss. Thats a good enough fix to get you from the field to the barn. You need new points. Your just taking away the magnesseum.



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Jeff Z.

01-28-2008 18:34:32




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 Re: questionon B magneto in reply to morton, 01-28-2008 17:46:39  
Here is another magneto site worth saving.

http://dueyschutter.freeservers.com/photo6.html



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old

01-28-2008 14:43:09




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 Re: questionon B magneto in reply to loveshisallis, 01-28-2008 13:32:18  
How to get it timed right should be in that manual I sent you



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