3G alternator conversion
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3G alternator conversion
OK so I am going to replace my alternator, I would like to upgrade to the 3G style with an internal regulator.
When I go to the junk yard, which cars should I be looking at? So far I was told 95 Mustang and 93 Taurus. What are my options?
Is there a way to tell the difference in amp ratings by looking at the alternators?
I plan to pull as much of the wiring to the alternator while I'm at it.
Thanks,
Wade
When I go to the junk yard, which cars should I be looking at? So far I was told 95 Mustang and 93 Taurus. What are my options?
Is there a way to tell the difference in amp ratings by looking at the alternators?
I plan to pull as much of the wiring to the alternator while I'm at it.
Thanks,
Wade
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Joined: Sep 2003
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From: Northeast LA
Yes, check out this thread for all the info you'll need. Two holes are the 130amp ones.
https://www.ford-trucks.com/forums/9...g-upgrade.html
https://www.ford-trucks.com/forums/9...g-upgrade.html
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Thank you that diagram is very helpful.
I called the Ford dealer to see if there was a cross reference for other cars too, but the guy was not very helpful. The same thing happened when I called the junk yard. I need an exact application.
If I go to the junk yard and there is no 1993 3.8L Taurus or 1995 Mustang, what other cars have this alternator? Can't I just grab any alternator from the early to mid 90's?
I called the Ford dealer to see if there was a cross reference for other cars too, but the guy was not very helpful. The same thing happened when I called the junk yard. I need an exact application.
If I go to the junk yard and there is no 1993 3.8L Taurus or 1995 Mustang, what other cars have this alternator? Can't I just grab any alternator from the early to mid 90's?
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From: Northeast LA
Here you go from page 4 of that thread.
130G Alternators:
94-96 Mustang 3.8 V-6
94-95 Mustang 5.0
94-96 Thunderbird 3.8 V-6 (non SC)
95-96 Windstar 3.0 V-6 (most are 3.8's)
93-96 E/F series Trucks/Vans 4.9 L6*
96 Sable 3.0 V-6
94-96 Cougar 3.8 V-6
and plentiful one of all... 90-95 Ford Taurus.
And also it's twin Mercury Sable 91-95
130G Alternators:
94-96 Mustang 3.8 V-6
94-95 Mustang 5.0
94-96 Thunderbird 3.8 V-6 (non SC)
95-96 Windstar 3.0 V-6 (most are 3.8's)
93-96 E/F series Trucks/Vans 4.9 L6*
96 Sable 3.0 V-6
94-96 Cougar 3.8 V-6
and plentiful one of all... 90-95 Ford Taurus.
And also it's twin Mercury Sable 91-95
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Well there sure is a lot of info about this upgrade. From what I've read i will need to just use the green wire with the red stripe. I took a look at my current wiring here:
<img src="http://mymach1mustang.com/1967-ford-truck/alternator/alternator_wiring.jpg">
and a close up of the plug that leads to it, there are 4 wires going to that connection, if I only need the green/red wire, what do I do with the other 3? What are those wires for?
<img src="http://mymach1mustang.com/1967-ford-truck/alternator/alternator_plug.jpg">
By the way if you look close enough there is a rather large mosquito on that plug! Here is a close up:
<img src="http://mymach1mustang.com/1967-ford-truck/alternator/mozzy.jpg">
wouldn't want to get bit by that thing!
<img src="http://mymach1mustang.com/1967-ford-truck/alternator/alternator_wiring.jpg">
and a close up of the plug that leads to it, there are 4 wires going to that connection, if I only need the green/red wire, what do I do with the other 3? What are those wires for?
<img src="http://mymach1mustang.com/1967-ford-truck/alternator/alternator_plug.jpg">
By the way if you look close enough there is a rather large mosquito on that plug! Here is a close up:
<img src="http://mymach1mustang.com/1967-ford-truck/alternator/mozzy.jpg">
wouldn't want to get bit by that thing!
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well I was wrong on that one, that looks like a large mosquito but it is actually a crane fly. They apparently eat mosquitoes ! So if you see one them don't swat it, they are good to have around.
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From: Northeast LA
We call those mosquito hawks around here.
You'll still need the thick black wire also as that's the main power to the cab. I just cut mine right behind that plug and tied into it. Make sure you put a fuse on it too, because right now it's protected by a fusible link. I put an 80 amp fuse on mine and I believe thats the size fuse others used too.
So I have a 135 amp MIDI wafer fuse on my BAT wire to the alternator and an 80 amp MAXI fuse on the main power to the cab.
You'll still need the thick black wire also as that's the main power to the cab. I just cut mine right behind that plug and tied into it. Make sure you put a fuse on it too, because right now it's protected by a fusible link. I put an 80 amp fuse on mine and I believe thats the size fuse others used too.
So I have a 135 amp MIDI wafer fuse on my BAT wire to the alternator and an 80 amp MAXI fuse on the main power to the cab.
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From: Phoenix, Az.
Hey 351, try Auto Recycling Mall in Maricopa. 480-802-4444.
Fleet Owner
Joined: Dec 2009
Posts: 20,678
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From: NorCal
I'll quote.... Me!:
Double check your wiring using the images below for reference. Me and Bullitt390 collaborated on 'em and they should set you straight. Note the 2nd image of the modified wiring harness and which plugs will have zero Ohms. Btw, the large black/yellow wire should be protected with a fusible link.
Chassis Plugs
Modified Harness:
Chassis Plugs
Modified Harness:
Lead Driver
Joined: Jul 2011
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From: On the Edge of the Desert
yea I got it all figured out. I had a few old wires not going anywhere that were tied in with the rest of them so that's what was throwing me. but after I figured it out I was able to completely eliminate all the old wiring. now I only have the 3 a,s,i wires and the charge cable. (this is possible because I don't have a choke and the horns aren't there)
im going to pick up a 175A fuse today and finish wiring it up.
also, I found a few little things that seemed to be different on the alternator I got. (from a 95 Taurus 3.8L)
number one, the bolt hole that holds the adjustment was bigger than 3/8" on mine, I had to use a through bolt with a nut on back.
number two, the shaft on it seemed to be shorter than others ive seen. I had to turn back the front shoulder on my V-pulley to get the full thread engagement.
number three, I had to drill out the main mounting hole to accept my long bolt, it was too small.
and four, I did not have to run a spacer between the pulley and the case, it clears by itself.
im going to pick up a 175A fuse today and finish wiring it up.
also, I found a few little things that seemed to be different on the alternator I got. (from a 95 Taurus 3.8L)
number one, the bolt hole that holds the adjustment was bigger than 3/8" on mine, I had to use a through bolt with a nut on back.
number two, the shaft on it seemed to be shorter than others ive seen. I had to turn back the front shoulder on my V-pulley to get the full thread engagement.
number three, I had to drill out the main mounting hole to accept my long bolt, it was too small.
and four, I did not have to run a spacer between the pulley and the case, it clears by itself.
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 82
From: NorCal
yea I got it all figured out. I had a few old wires not going anywhere that were tied in with the rest of them so that's what was throwing me. but after I figured it out I was able to completely eliminate all the old wiring. now I only have the 3 a,s,i wires and the charge cable. (this is possible because I don't have a choke and the horns aren't there)
im going to pick up a 175A fuse today and finish wiring it up.
also, I found a few little things that seemed to be different on the alternator I got. (from a 95 Taurus 3.8L)
number one, the bolt hole that holds the adjustment was bigger than 3/8" on mine, I had to use a through bolt with a nut on back.
number two, the shaft on it seemed to be shorter than others ive seen. I had to turn back the front shoulder on my V-pulley to get the full thread engagement.
number three, I had to drill out the main mounting hole to accept my long bolt, it was too small.
and four, I did not have to run a spacer between the pulley and the case, it clears by itself.
im going to pick up a 175A fuse today and finish wiring it up.
also, I found a few little things that seemed to be different on the alternator I got. (from a 95 Taurus 3.8L)
number one, the bolt hole that holds the adjustment was bigger than 3/8" on mine, I had to use a through bolt with a nut on back.
number two, the shaft on it seemed to be shorter than others ive seen. I had to turn back the front shoulder on my V-pulley to get the full thread engagement.
number three, I had to drill out the main mounting hole to accept my long bolt, it was too small.
and four, I did not have to run a spacer between the pulley and the case, it clears by itself.
Serendipity. Mine was a hair off . Made a thin washer out of aluminum and used Loctite red 272 on the nut.