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JD 620 12 volt conversion

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john king

02-07-2002 08:33:07

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changed ignition system to 12 v using wiring diagram by genesee products on this web page. replaced coil & replaced generator with delco alternator 10 si. Everything works good except the alternator field coils get extremely hot.Does anyone know what might be the problem??

thanks
John King

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Clooney

02-07-2002 12:23:19

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Re: JD 620 12 volt conversion in reply to john king, 02-07-2002 08:33:07

John, the field? in a 10 SI alternator is actually the rotor & how can you tell how hot it is getting?
~If you are talking about the stator, where are you picking up the temperature at & exactly how hot is it getting.
~Alternators that are putting out full power, especially the 60 amp & up models do make quite a bit of heat.
~Put an ammeter on it & see what the output is after running for a while, if the output is staying up around max you have a bad battery, short in the electrical system, internal short in the alternator or it is wired incorrectly.
~Do you still have the fan on the alternator behind the pulley?

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