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Starter ?

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Dale L

04-05-2006 08:36:43

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After over 20 years of sitting in a field hopefully this weekend we will get an 51 DC running. I have two starters to use. The numbers on the starters are mab-4105 11e and mab-4105 12e. I hitch them up to a 6 volt battery and niether one seems to spin fast enough to start the tractor. Does any one know if they where a 12 or a 6 volt starter? Maybe they should be disassembled and cleaned up.Any advice would be appreciated. Thanks Dale.

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04-05-2006 20:15:58

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 Re: Starter ? in reply to Dale L, 04-05-2006 08:36:43  
thanks for all the input I'll take one apart and clean it up and see if that helps.Looks like I've got bigger problems to deal with on this tractor.It is leaking coolant like a sieve, but that is a subject for another thread.

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04-05-2006 13:09:01

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 Re: Starter ? in reply to Dale L, 04-05-2006 08:36:43  
There is two different starter drives to match two different ring gears

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Ken in AZ

04-05-2006 13:45:02

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 Re: Starter ? in reply to DBoll, 04-05-2006 13:09:01  
There are 2 different starter drives and ring gears. Early ones (prior to S/N 4406069) were a MAB-4040 and had a 13 tooth pinion.

Later ones were a MAB-4105 and had a 10 tooth pinion. Both Auto-Lite parts.

"Full Steam Ahead" mentions that the early starter still required a crank...

Ken in AZ

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Walt Davies

04-05-2006 12:03:14

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 Re: Starter ? in reply to Dale L, 04-05-2006 08:36:43  
The starter on my LA would hardley turn, I took it out and cleaned the whole thing up with a cleaner that would dry clean like (Brake Clean) it works great now. The most important thing is to check that the brushes are not worn down you can get new brushes for then use sand paper (not the black stuff) on the armature to clean it up. check all spring on the brushes to make sure that they work correctly and you should be Ok.


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04-05-2006 10:36:12

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 Re: Starter ? in reply to Dale L, 04-05-2006 08:36:43  
DCs used a 6v system.

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