Starter-generator question on a Wisconsin Engine

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Super A
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Starter-generator question on a Wisconsin Engine

Postby Super A » Wed Mar 11, 2015 11:55 am

One of my students is working on a small Wisconsin engine that has a starter-generator setup similar to an early model Cub Cadet. It is missing some wiring including the voltage regulator. I am >>NOT<< familiar with these systems. Is there a way to put juice to the starter-generator to see if it will turn over (want to do a compression check and some other diagnostics) with no regulator, etc? He doesn't know what condition it is in, other than "ran when parked."

thanks,
Al
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Re: Starter-generator question on a Wisconsin Engine

Postby Eugene » Wed Mar 11, 2015 2:38 pm

Most S/Gs were 12 volt. So use a 12 volt battery and a set of jumper cables.

Attach one end of the jumper cable to the largest terminal on the S/G, then to battery. Last jumper cable from battery to ground on motor. The S/G is probably negative ground, but for initial test polarity won't make any difference,

Loosen the S/G belt for initial test.

If the compression test works out, use the early Cub Cadet wiring diagrams for the regulator wiring. The S/'G is probably a Delco and repair part are available at the local auto parts store. If S/G has failed it can be tested at most auto parts stores.
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