Bench testing a starter

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Jackman
10+ Years
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Bench testing a starter

Postby Jackman » Fri Jul 07, 2017 8:10 am

My cub sat a loooooong time , over 17 years ,just prior to the long sit I had the starter rebuilt at a proffessional start/gen/alt shop they do great work :D , after the long sit she started and then it stopped (the starter) , so I took starter apart for inspection and besides some dust all parts look new and ready to work so I put starter in a vice attach a ground wire from 12 volt boost end start hit , tattach the positive to the hoot lug and all I get is a hmmm and no rotation ,,,,,,,,, am I doing it right? with 12 volt boost negitive ground if all parts are working the starter should turn :?:

AL Farmall Boy
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Re: Bench testing a starter

Postby AL Farmall Boy » Fri Jul 07, 2017 8:54 am

is the motor turning (the hmmm) but the bendix not moving? Could be a stuck bendix.
Regards,
Chase
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ihfarmallrtr@gmail.com
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Eugene
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Re: Bench testing a starter

Postby Eugene » Fri Jul 07, 2017 9:14 am

Depending on the starter part number you will need a maximum of 60 or 80 amps for a no load test.

You will need a battery and jumper cables or a very large capacity battery charger.
I have an excuse. CRS.

Jackman
10+ Years
10+ Years
Posts: 2005
Joined: Mon May 15, 2006 4:26 am
Zip Code: 000000
Circle of Safety: Y

Re: Bench testing a starter

Postby Jackman » Fri Jul 07, 2017 9:18 am

AL Farmall Boy, just a hmmmm , no rotaion. I pulled the bendix was not stuck ,

Eugene thanks , maybe my booster does not have the out put needed :? ,,,,,, I''ll wait for the rain to slow so I can put starter in the Cub and see what happens.....

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John *.?-!.* cub owner
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Re: Bench testing a starter

Postby John *.?-!.* cub owner » Fri Jul 07, 2017 12:52 pm

Good possibility of a stuck brush not fully contacting armature. check ech one of them. Also turn in just a little by hand and try again.
If you are not part of the solution,
you are part of the problem!!!

AL Farmall Boy
5+ Years
5+ Years
Posts: 2161
Joined: Tue Aug 10, 2010 6:38 pm
Zip Code: 35111
Circle of Safety: Y

Re: Bench testing a starter

Postby AL Farmall Boy » Fri Jul 07, 2017 4:38 pm

Yes what john said.
Regards,
Chase
205-368-5339
ihfarmallrtr@gmail.com
:tractor: Like my page "Alabama Tractor Pickers" on Facebook! :tractor:

Jackman
10+ Years
10+ Years
Posts: 2005
Joined: Mon May 15, 2006 4:26 am
Zip Code: 000000
Circle of Safety: Y

Re: Bench testing a starter

Postby Jackman » Sun Jul 09, 2017 6:26 am

Took brushes off again they look clean and new reinstalled , put my 200 amp boost starter on an I get hmmmmmmm then I bolt it to the cub pull the ring and instantly she fires up :D all good now :tractor: Thanks fellas :hattip:


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