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61 140 6v to 12v


 
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PretendFarmer
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PostPosted: Mon Feb 04, 2013 1:06 pm    Post subject: 61 140 6v to 12v Reply to specific post Reply with quote

My 140 is 6v. I want to make it 12v. so, am I correct by saying that I swap out the coil with a 12v coil, napa has one for $35. And put a 12 alternator in, then the 12v battery? Missing anything?
 
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RTR
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PostPosted: Mon Feb 04, 2013 1:11 pm    Post subject: Re: 61 140 6v to 12v Reply to specific post Reply with quote


the 6 volt starter will work but will spin much faster thus shortening the life of it. Probably be good for several years thoough. Don't forget to redo the wiring at the coil to make the wire going to distributor on the negative side of the coil instead of the positave side like it is currently becuase it is positave ground. The old voltage regulator will not be needed anymore either. Steiner has a very nice factory made alternator bracket for the 140 so your alternator will line up good and it will look clean on the tractor. Don't forget to swap out the light bulbs and you should be good.
 
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RTR
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PostPosted: Mon Feb 04, 2013 1:11 pm    Post subject: Re: 61 140 6v to 12v Reply to specific post Reply with quote


the 6 volt starter will work but will spin much faster thus shortening the life of it. Probably be good for several years thoough. Don't forget to redo the wiring at the coil to make the wire going to distributor on the negative side of the coil instead of the positave side like it is currently becuase it is positave ground. The old voltage regulator will not be needed anymore either. Steiner has a very nice factory made alternator bracket for the 140 so your alternator will line up good and it will look clean on the tractor. Don't forget to swap out the light bulbs and you should be good.
 
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David G
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PostPosted: Mon Feb 04, 2013 2:27 pm    Post subject: Re: 61 140 6v to 12v Reply to specific post Reply with quote

Do not forget to change polarity if going with an alternator. I have tractors that were switched 20-30 years ago working fine. I do not like the universal brackets.
 
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John G. Hasler
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PostPosted: Mon Feb 04, 2013 2:38 pm    Post subject: Re: 61 140 6v to 12v Reply to specific post Reply with quote

> the 6 volt starter will work but will spin much
> faster thus shortening the life of it.

Not much, if at all. It"s a series motor so it won"t draw as much more current as you"d think and will start much more quickly, reducing starter wear.
 
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RTR
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PostPosted: Mon Feb 04, 2013 2:46 pm    Post subject: Re: 61 140 6v to 12v Reply to specific post Reply with quote

David G wrote:
(quoted from post at 03:27:19 02/05/13) Do not forget to change polarity if going with an alternator. I have tractors that were switched 20-30 years ago working fine. I do not like the universal brackets.


This is the alternator bracket I am talking about. It isn't necessarily universal since it is made to fit the Farmall 123 engines. I haven't used mine yet, but it looks really nice!


 


Last edited by RTR on Mon Feb 04, 2013 2:48 pm; edited 1 time in total
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David G
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PostPosted: Mon Feb 04, 2013 2:47 pm    Post subject: Re: 61 140 6v to 12v Reply to specific post Reply with quote

That is a nice looking bracket.
 
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old
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PostPosted: Mon Feb 04, 2013 2:58 pm    Post subject: Re: 61 140 6v to 12v Reply to specific post Reply with quote

Shorten starter life??? I have had 6 volt starters on tractors for decades and never yet had any problems with them on 12 volts. The big thing is not letting them sit and spin an engine over for long periods of time
 
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old
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PostPosted: Mon Feb 04, 2013 2:59 pm    Post subject: Re: 61 140 6v to 12v Reply to specific post Reply with quote

Have to change the ground from + to - or you will let the smoke out of the alternator the moment up hook up the battery. Coil also has to be done the same as in - side of the coil to the distributor.
 
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mkirsch
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PostPosted: Tue Feb 05, 2013 6:05 am    Post subject: Re: 61 140 6v to 12v Reply to specific post Reply with quote

There is no need to send people on wild goose chases for expensive 12V starters. 6V starters work just fine.

The key is, don't grind and grind and grind and grind and grind and grind and grind and grind on the starter. If the engine doesn't at least fire within 5 seconds you have an ignition or carburetor problem that needs to be addressed.
 
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RTR
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PostPosted: Tue Feb 05, 2013 11:58 am    Post subject: Re: 61 140 6v to 12v Reply to specific post Reply with quote

RTR wrote:
(quoted from post at 02:11:34 02/05/13)
the 6 volt starter will work but will spin much faster thus shortening the life of it. Probably be good for several years thoough. Don't forget to redo the wiring at the coil to make the wire going to distributor on the negative side of the coil instead of the positave side like it is currently becuase it is positave ground. The old voltage regulator will not be needed anymore either. Steiner has a very nice factory made alternator bracket for the 140 so your alternator will line up good and it will look clean on the tractor. Don't forget to swap out the light bulbs and you should be good.


I believe I said that it will work and should be good for several years. It does make the starter spin faster when using a 6 volt on a 12 volt system, and I'm sure puts more load on it; but it still works and will be fine just like I said. I've got PLENTY of tractors that have been done this way. I was just told (I believe on this forum) that it will shorten the life of the starter and was passing that info on so I "didn't leave anything out".
 
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RTR
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PostPosted: Tue Feb 05, 2013 12:00 pm    Post subject: Re: 61 140 6v to 12v Reply to specific post Reply with quote

RTR wrote:
(quoted from post at 02:11:34 02/05/13)
the 6 volt starter will work but will spin much faster thus shortening the life of it. Probably be good for several years thoough. Don't forget to redo the wiring at the coil to make the wire going to distributor on the negative side of the coil instead of the positave side like it is currently becuase it is positave ground. The old voltage regulator will not be needed anymore either. Steiner has a very nice factory made alternator bracket for the 140 so your alternator will line up good and it will look clean on the tractor. Don't forget to swap out the light bulbs and you should be good.


I believe I said that it will work and should be good for several years. It does make the starter spin faster when using a 6 volt on a 12 volt system, and I'm sure puts more load on it; but it still works and will be fine just like I said. I've got PLENTY of tractors that have been done this way. I was just told (I believe on this forum) that it will shorten the life of the starter and was passing that info on so I "didn't leave anything out".
 
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