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Author Topic: wires off alternator keep melting/burning up  (Read 1177 times)

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Offline nanowagon

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wires off alternator keep melting/burning up
« on: August 08, 2017, 11:54:04 AM »
hey guys, installed a new alternator/voltage regulator and my white wire off the alternator keeps melting, the orange one looks a little burnt too but cant tell if its just cause the heat from the white one or not, I don't know much about wiring, what does this wire go to?

Offline r4pinto

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Re: wires off alternator keep melting/burning up
« Reply #1 on: August 08, 2017, 01:46:55 PM »
Can you provide more info on the car? Year, model, engine?
Matt Manter
1977 Pinto sedan- Named Harold II after the first Pinto(Harold) owned by my mom. R.I.P mom- 1980 parts provider & money machine for anything that won't fit the 80
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Offline dick1172762

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Re: wires off alternator keep melting/burning up
« Reply #2 on: August 09, 2017, 10:47:10 AM »
If you have a white and a green wires plus a stud/nut, the green wire goes to the coil, the white wire goes to a 12 volt source, or you can attach it to the stud/nut along with the large wire that goes your 12 volt source. This is what I've done to my own cars and is just the way I did it.
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Offline nanowagon

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Re: wires off alternator keep melting/burning up
« Reply #3 on: August 17, 2017, 03:23:08 PM »
its a 77 w/ a 2.8 v6 with a/c if that info helps at all

Offline dick1172762

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Re: wires off alternator keep melting/burning up
« Reply #4 on: August 17, 2017, 04:15:11 PM »
The alternator wiring could care less about car size because the wiring for the alternator is the same in all Pintos. The size engine and AC only count in picking the power out putt of the alternator, NOT the wiring. All alternators made today in the USofA are three (3) wires and one wire (1). Or so I'm told.
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Offline dick1172762

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Re: wires off alternator keep melting/burning up
« Reply #5 on: August 18, 2017, 12:43:42 PM »
You might try running a ground wire off of the alternator case if all else fail's.
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