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Allis Chalmers Discussion Forum
:

Mag Ground switch for B?

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Tim in New York

08-03-2018 17:23:50




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Ordered a set of new switches for my B that arrived today. I did not get prices in advance, and the vendor did not have an on-line catalog. They sent an AGCO ground switch that cost $56. Is there anything special about this application that requires such an expensive switch? Can I just go to NAPA and get a simple on/off switch and send this one back?

Thanks,
Tim




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Ralphwd45

08-04-2018 19:36:11




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 Re: Mag Ground switch for B? in reply to Tim in New York, 08-03-2018 17:23:50  
I use a cheap aftermarket horn button, for a kill switch on my B, It can't trap moisture!



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Bob

08-03-2018 21:41:57




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 Re: Mag Ground switch for B? in reply to Tim in New York, 08-03-2018 17:23:50  
If it's a quality switch that's dust and moisture tight it might be worth it. A photo of the high-dollar switch would be helpful.

My favorite mag kill switch over the years has been the OEM IH units, but I've seen lots of crappy switches folks have tried to "get by with".

A magneto only produces so much energy, and if a switch with dirt and moisture in it bleeds some of the current to ground, spark will weaken accordingly.

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tractorguy2

08-03-2018 20:31:02




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 Re: Mag Ground switch for B? in reply to Tim in New York, 08-03-2018 17:23:50  
Any push pull switch will work.



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Dick L

08-03-2018 19:09:56




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 Re: Mag Ground switch for B? in reply to Tim in New York, 08-03-2018 17:23:50  
any off on toggle switch will work if you don't care how original you want to look.



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KenL

08-03-2018 17:39:54




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 Re: Mag Ground switch for B? in reply to Tim in New York, 08-03-2018 17:23:50  
I have purchased mag switches from eBayfor less than $20.00. Napa should be able to get them also. A mag switch is a little different than other switches because, they are single pole and, when you push them in, they ground they mag which kills the engine.



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Tim in New York

08-04-2018 07:34:54




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 Re: Mag Ground switch for B? in reply to KenL, 08-03-2018 17:39:54  
Thank you for the advice. I have a call into NAPA to see what they have.

Tim



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old

08-04-2018 09:46:33




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 Re: Mag Ground switch for B? in reply to Tim in New York, 08-04-2018 07:34:54  
Most any switch will work just fine but one has to know how to wire it os you can let the smoke out of the mag in a heart beat. A simple marine grade switch works the best that way water etc. is less likely to make it go bad. Then you hook one side to the mag shut down clip and the other side to a good ground



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Tim in New York

08-07-2018 18:40:14




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 Re: Mag Ground switch for B? in reply to old, 08-04-2018 09:46:33  
Just decided to use what they sent me. Thanks for everyone's help.

Tim



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