The Ford Barn

Bear72 · 05-23-2016, 05:48 PM

Can anyone explain why the generator wire on a pos ground 28 ford goes to the neg terminal.I can't seem to get any voltage from the gen after it was rebuilt. Thanks

Sparky · 05-23-2016, 06:30 PM

It's because the generator is polarized so that the housing is positive, and the output terminal is negative, so it should go to the negative battery terminal.

How do you know you are getting no voltage? Did you measure the output with a voltmeter or are you going by the ammeter reading?

Bear72 · 05-23-2016, 06:36 PM

Thanks much that straightens my mind Thanks again

Tom Wesenberg · 05-23-2016, 07:02 PM

Measure the voltage at the generator terminal, just in case the cutout is bad. With a bad cutout that is open, you'll cook the generator in minutes. You can also use a jumper wire between the two cutout terminals to bypass the cutout, but remove it as soon as the engine is turned off, or that can also burn out the generator, and kill the battery.

burner31 · 05-24-2016, 08:53 AM

Sponsored Links (Register now to hide all advertisements)

Here

05-23-2016, 05:48 PM	#1
Bear72 Junior Member Join Date: May 2016 Location: hope canada Posts: 4	bear72 Can anyone explain why the generator wire on a pos ground 28 ford goes to the neg terminal.I can't seem to get any voltage from the gen after it was rebuilt. Thanks

05-23-2016, 06:30 PM	#2
Sparky Senior Member Join Date: May 2010 Location: Rhode Island Posts: 650	Re: bear72 It's because the generator is polarized so that the housing is positive, and the output terminal is negative, so it should go to the negative battery terminal. How do you know you are getting no voltage? Did you measure the output with a voltmeter or are you going by the ammeter reading?

05-23-2016, 06:36 PM	#3
Bear72 Junior Member Join Date: May 2016 Location: hope canada Posts: 4	Re: bear72 Thanks much that straightens my mind Thanks again

05-23-2016, 07:02 PM	#4
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: bear72 Measure the voltage at the generator terminal, just in case the cutout is bad. With a bad cutout that is open, you'll cook the generator in minutes. You can also use a jumper wire between the two cutout terminals to bypass the cutout, but remove it as soon as the engine is turned off, or that can also burn out the generator, and kill the battery.