ok, I just got a 200 amp alternator for my 1990 mustang. I wanna know the best way to approach the install. I know i'm gonna have to cut the mounting bracket and I know theres something about rewiring. I dont really no much else, and I'm not even sure what the wiring entails. Any help would be appreciated, Thanks
Questions on an alternator
- Thread starter Brimak86
- Start date
stangbear427
Active Member
What do the directions say? What brand is it? What style- one wire, three wire, 1G, 2G, 3G- need more info!
http://www.fordmuscle.com/archives/2001/03/paperformance/index.shtml
All you need to know.
BTW, don't put the old 2 black and orange 10 guage wires on the alternator, just leave them off but don't disconnect it from the starter relay as this is where your voltmeter gets its readings from. If you do put them on, you risk a fire hazard from overloaded circuitry.
All you need to know.
BTW, don't put the old 2 black and orange 10 guage wires on the alternator, just leave them off but don't disconnect it from the starter relay as this is where your voltmeter gets its readings from. If you do put them on, you risk a fire hazard from overloaded circuitry.
Here's websites with pictures of the 3G ( 94 Mustang and later 130 amp alt) installation procedure...
See http://www.geocities.com/smithmonte/Auto/3G_130A_Alternator_Upgrade.htm - all the tech data you could ever want to know
OR
http://www.mustangcentral.net/tech/alternator.html - excellent pictures of installation
For the right way to do the wiring. Some people will tell you that you can skip the wiring upgrade, but it will catch up with you sooner or later. A fire in the wiring harness is ugly and expensive.
Under no circumstances connect the two 10 gauge black/white wires to the 3G alternator. If the fuse blows in the 4 gauge wire, the two 10 gauge wires will be overloaded to the point of catching fire and burning up the wiring harness.
See http://www.geocities.com/smithmonte/Auto/3G_130A_Alternator_Upgrade.htm - all the tech data you could ever want to know
OR
http://www.mustangcentral.net/tech/alternator.html - excellent pictures of installation
For the right way to do the wiring. Some people will tell you that you can skip the wiring upgrade, but it will catch up with you sooner or later. A fire in the wiring harness is ugly and expensive.
Under no circumstances connect the two 10 gauge black/white wires to the 3G alternator. If the fuse blows in the 4 gauge wire, the two 10 gauge wires will be overloaded to the point of catching fire and burning up the wiring harness.
The only way around that if you really want to connect those wires that badly would be to add an inline fuse (ditch the fusible link) with a low amperage rating of like around 5 amps or so. That way if it gets overloaded that fuse will blow faster than that fusible link ever would and should prevent the problem altogether and in a hurry.
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