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Discussion Forum

6V starter

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10-11-2007 04:29:40

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I have a TEA '50

i have the tractor stripped and have never started it, so by chance i noticed that the dynamo and coil are both 12v but the starter is 6, would i need to change the starter to 12v?

Or would the starter be able to cope with 12 volts running through it?


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10-13-2007 15:26:34

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 Re: 6V starter in reply to McKay, 10-11-2007 04:29:40  
I don't know about turning over twice as fast. But the starter will take half the amps to turn over as it did with a 6v system. E=I*R. 2 times the volts half the amps. I don't know the internal windings of the 6V starter but I do know, if it can handle the amp load from 6V it can handle the load from 12V seeing as there is half the amps going through the windings. For example 120V at 20 amps, with 240V would be 10 amps. This is an average.

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10-11-2007 15:18:32

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 Re: 6V starter in reply to McKay, 10-11-2007 04:29:40  
I have the original 6V starter on my TO-30 with a 12v system and it"s been that way since I bought it in "96. It"s used regularly on the ranch and have never had any problems with it.

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10-11-2007 14:08:42

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 Re: 6V starter in reply to McKay, 10-11-2007 04:29:40  
The only thing that will happen if you run a 6 volt starter on 12 volts is it will turn twice as fast - not a bad thing, but eventually it will chew up the starter drive.

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Lance J.

10-11-2007 10:05:22

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 Re: 6V starter in reply to McKay, 10-11-2007 04:29:40  
I have read many times on this forum that the starter doesn't care one way or another if its 6 volt or 12, as long as it is grounded correctly.

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10-11-2007 07:23:14

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 Re: 6V starter in reply to McKay, 10-11-2007 04:29:40  
Thanks very much

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10-11-2007 06:46:31

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 Re: 6V starter in reply to McKay, 10-11-2007 04:29:40  
It should not matter that much. When these tractors are converted from six to twelve volts, most people don't do anything to the starter, unless it breaks. In other words, there is no need to solve a non-problem (yet).

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Bob (Aust)

10-13-2007 05:47:58

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 6V starter in reply to phil(va), 10-11-2007 06:46:31  
Be aware the 12 volt starter fitted standard to the TEA20 will not fit a 6 volt TEA20. The drive end cap is totally different on the 12 volt Lucas starter.

If you wish to change to a 12 volt starter you will need to buy one of the after market conversion starters.

Can't see the 12 volt TEA20 conversion starters on this site but there is a photo at this Australian link.

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