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Farmall & IHC Tractors Discussion Forum
Show Parts for Model:

61 140 6v to 12v

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PretendFarmer

02-04-2013 13:06:56
66.87.125.237



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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

02-05-2013 12:00:57
216.226.179.180



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 Re: 61 140 6v to 12v in reply to PAvegfarmer, 02-04-2013 13:06:56  
Quoting Removed, click Modern View to see

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

02-05-2013 11:58:27
216.226.179.180



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 Re: 61 140 6v to 12v in reply to Zachary Hoyt, 02-04-2013 13:06:56  
Quoting Removed, click Modern View to see

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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mkirsch

02-05-2013 06:05:55
64.80.110.74



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 Re: 61 140 6v to 12v in reply to PretendFarmer, 02-04-2013 13:06:56  
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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old

02-04-2013 14:59:40
209.86.226.18



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 Re: 61 140 6v to 12v in reply to PretendFarmer, 02-04-2013 13:06:56  
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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RTR

02-04-2013 14:46:28
216.226.179.180



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 Re: 61 140 6v to 12v in reply to ldb, 02-04-2013 13:06:56  

David G said: (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!

This post was edited by RTR at 14:48:50 02/04/13.

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David G

02-04-2013 14:47:39
205.215.206.18



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 Re: 61 140 6v to 12v in reply to RTR, 02-04-2013 14:46:28  
That is a nice looking bracket.



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John G. Hasler

02-04-2013 14:38:29
174.124.25.60



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 Re: 61 140 6v to 12v in reply to PretendFarmer, 02-04-2013 13:06:56  
> 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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David G

02-04-2013 14:27:19
205.215.206.18



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 Re: 61 140 6v to 12v in reply to PretendFarmer, 02-04-2013 13:06:56  
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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old

02-04-2013 14:58:05
209.86.226.18



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 Re: 61 140 6v to 12v in reply to RTR, 02-04-2013 13:11:34  
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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