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8N electrical problem battery/generator?

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Tim

06-21-2002 16:45:47

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This may be obvious to most of you, but I've got a problem with my battery staying charged after it is re-connected to the electrical system. I bought a '52 8N a few weeks ago and almost immediately the battery wore down and wouldn't start again. It tested below 1 volt and it was an old battery, so I just replaced it thinking the battery was bad.

The new battery was connected and it started fine, and I ran it for an hour or two until I realized I had fuel system problems. So I had to replace the fuel system and soon after (a week of sitting idle) the new battery wouldn't start. I charged it back up again and it read 6.8+ volts. After re-connecting the battery it started the tractor right up again. Well then it wouldn't start the tractor again after it had run for 30 minutes or so. I tested the battery and it read 6.18 volts, which in another post about electrical problems said there was probably a bad cell in the battery.

Is it possible for the generator or something else to drain the battery like this or is my brand new battery just a bad one? I sure would appreciate any troubleshooting advice/info anyone might have for me out there. Thanks.

Tim

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Dell (WA)

06-21-2002 16:55:39

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Re: 8N electrical problem battery/generator? in reply to Tim, 06-21-2002 16:45:47

Tim..... ..... Its probably your voltage regulator.

You did remember to "polarize" your generator/regulator when you replaced your positive grounded battery, didn't you?

The sidemount 8N voltage regulator has a "disconnect" relay that is polarity sensitive. You can never polarize your voltage regulator/generator too many times.

I hate to give instructions on how to "polarize" the generator/regulator 'cuz I always have to look it up. So I'll let you look it up in the I&T FO-4 manual, instead..... ..... .respectfully, Dell

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9N'er correct me if I am wrong...

06-21-2002 17:05:44

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Re: Re: 8N electrical problem battery/generator? in reply to Dell (WA), 06-21-2002 16:55:39

One way to tell if your regulator is non-functioning is to take a bare wire to the F terminal and ground the other end. If the ammeter jumps to a strong positive reading...your alternator needs replacement?

I was just told this tonight by a good neighbor friend down the road.

Is that correct?

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06-21-2002 17:42:10

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Re: Re: Re: 8N electrical problem battery/generator? in reply to 9N'er correct me if I am wrong..., 06-21-2002 17:05:44

I think he is talking about a generator.

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regulator

06-22-2002 00:57:00

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Re: Re: Re: Re: 8N electrical problem battery/generator? in reply to wl, 06-21-2002 17:42:10

voltage regulator would need replacement.

meant to say voltage regulator and not generator. sorry.

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Tim

06-22-2002 08:02:43

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Re: Re: Re: Re: Re: 8N electrical problem battery/generator? in reply to regulator, 06-22-2002 00:57:00

Thanks to all for the quick reply. I am not familiar with the positive ground 6 volt system found on the 8N. I had no idea about polarizing the regulator. Thanks again and hopefully I won't have to ask any more questions. I will test out the voltage regulator and let you know what happens.

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