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Discussion Forum
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Which control switch do I want?

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Mike CA

10-06-2007 00:21:20




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I'm (eventually) going to trade my distributer in for a Mag. I believe I need a push/pull switch to shut off the tractor once I install the mag. I have seen those switches in single prong and double prong.

What is the difference? Which will I need?




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Mike CA

10-06-2007 11:14:06




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 Re: Which control switch do I want? in reply to Mike CA, 10-06-2007 00:21:20  
I'm not going to do it any time soon. So I will give a lot of thought to what you have said. The biggest driving force behind the decision was nostalia, and the fact that at the last tractor show I was at, none of the 4 H's I saw had a mag on it. Not even the early '40.
We'll see. I may like the distrubuter enough to keep it after running it a while.



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Janicholson

10-06-2007 10:42:30




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 Re: Which control switch do I want? in reply to Mike CA, 10-06-2007 00:21:20  
Dear Mike,
I'm going to try to convince you to use the distributor it has. The intended use of the tractor (if I paraphrase you correctly) is to show it, drive it in parades, and hay rides upon occasion. A mag has disadvantages,
1} It (because of age and complexity, and that it has more moving parts to get out of specification) provides no more reliability.
2} The mags used have no timing advance mechanism. The timing goes advanced upon the starting of the engine, and resides at a position that is a compromise between idle advance, and full load advance. This results in a poor idle (rough and noisy on the rain cap) with the appearance of poor operation.
3} The compromised timing also pollutes more during idle and low speed operation, and has less total power and fuel efficiency compared to a distributor.
4} Distributors are considered stock in that so very many were offered as options, and as replacement for mags.
I feel the effort to change it to a mag would result in disapointment. If nostalgia makes it happen I will keep my fingers shut on the topic.
Thanks for hearing me out, Jim

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Andy Motteberg

10-06-2007 08:28:17




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 Re: Which control switch do I want? in reply to Mike CA, 10-06-2007 00:21:20  
1 Prong for a Mag,
2 For a distributor.



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Steven f/AZ

10-06-2007 06:52:28




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 Re: Which control switch do I want? in reply to Mike CA, 10-06-2007 00:21:20  
You will need the one with a single prong. The magneto just needs one wire to ground it out to shut the tractor off.

Distributor would need the two prong - one supplies power from the battery/ammeter and the other one powers the coil.

Make sure when you mount the magneto kill switch that it is grounded to the tractor well...



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Bill Geer

10-06-2007 03:24:12




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 Re: Which control switch do I want? in reply to Mike CA, 10-06-2007 00:21:20  
single pole for a mag.
double pole for a dist. Bill



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