HOWTO - 3G Alternator Installation - Ford Truck Enthusiasts Forums



HOWTO - 3G Alternator Installation

Reply
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 01-20-2011, 10:09 PM
ctubutis's Avatar
ctubutis ctubutis is offline
Moderator
Thread Starter
 
Join Date: Nov 2007
Location: Denver Metro Area, CO
Posts: 19,663
ctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputation
HOWTO - 3G Alternator Installation

Multiple sources (some off-site) concerning 3G alternator installations:

<!--

Begin outermost table definition

-->
<table style="background-color: rgb(218, 222, 235); text-align: left; width: 810px;" border="1" cellpadding="5" cellspacing="0"><tbody><tr><td style="vertical-align: top;">
3G Alternator Install With Pictures
Quote:
Originally Posted by bghnkinf250 View Post
Okay, I wanted to upgrade my charging system, not because I need all the power, but mainly because I wanted to get rid of the dangerous spade terminal connections on the 2G alternator. I checked around and also learned that since a larger alternator is not straining as hard to put out the same amount of amperage as a smaller alternator might, it works less and lasts longer. I searched the internet and found plenty of 3G alternator upgrades documented, but I was confused, especially with the wiring (even though it is simple) and did not find one for our trucks.

A couple of people were interested in a write up, so here goes!

There are countless reasons to upgrade, and I am not here to sell you on them. If you are considering this upgrade, then you most likely have already researched the 3G alternator and where they come from. I got mine out of a Taurus (hint if you do not know where they come from).

If you want to do the upgrade, you will need beside the tools:

3G alternator
Mega Amp fuse
As long of a length of the alternator harness and battery wire from the back of the alternator out of the donor car you got the alternator from (it never hurts to have more and have to cut it, than not enough).

I completed this for about $30 in parts including the alternator.

There are a few different ways to go about the upgrade, and I do not know if mine is best, but it is simple and straight forward.

So lets start. *****DISCONNECT THE BATTERY***** The first and hardest part of this was getting out the old alternator. You can see why:

<!--

Begin close of outermost table

-->
</td></tr></tbody></table>
<!--

End close of outermost table

-->
<table style="background-color: rgb(218, 222, 235); text-align: left; width: 810px;" border="1" cellpadding="5" cellspacing="0"><tbody><tr><td style="vertical-align: top;">Info provided by Ford Fuel Injection » 3G Install Tech
Quote:
3G Install Tech

In 1996 Ford publicly recognized the fire hazard caused by the 2G alternator and released TSB 96214. This alternator design caused increased resistance and heat which could damage the wire harness and alternator. A small percentage of vehicles actually caught on fire!
Fords 3G alternator was a giant leap in technology and quality. The 3G was internally regulated, used two internal cooling fans, sealed bearings, and had a superior battery stud. The 3G’s were more efficient, and produced more amperage at idle than any of its predecessors.
<!--

Begin close of outermost table

-->
</td></tr></tbody></table>
<!--

End close of outermost table

-->
Reply With Quote
  #2  
Old 10-16-2016, 08:08 PM
1986F350XL6.9LDRW 1986F350XL6.9LDRW is offline
New User
 
Join Date: Oct 2016
Posts: 6
1986F350XL6.9LDRW is starting off with a positive reputation.
Is it me or can everyone only see the first step to the 3G swap? This pic is my wiring before swap. Any help on wiring would be greatly appreciated. (Later in the day) I found the link
Attached Images
 
Reply With Quote
  #3  
Old 10-17-2016, 11:27 AM
ctubutis's Avatar
ctubutis ctubutis is offline
Moderator
Thread Starter
 
Join Date: Nov 2007
Location: Denver Metro Area, CO
Posts: 19,663
ctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputationctubutis has a superb reputation
Quote:
Originally Posted by 1986F350XL6.9LDRW View Post
Is it me or can everyone only see the first step to the 3G swap? This pic is my wiring before swap. Any help on wiring would be greatly appreciated. (Later in the day) I found the link
The intention is that the user will click on the link at the top of each snippet, that will take them to the full thread. Only short snippets are shown here.
Reply With Quote
  #4  
Old 11-06-2016, 12:09 AM
Rusty_S's Avatar
Rusty_S Rusty_S is offline
Postmaster
 
Join Date: Apr 2007
Location: Houston
Posts: 3,699
Rusty_S has a great reputation on FTE.Rusty_S has a great reputation on FTE.Rusty_S has a great reputation on FTE.Rusty_S has a great reputation on FTE.
I am thinking my next project on the truck is a 3G alternator conversion. I keep forgetting what model to look for that will be a straight drop bolt in for a 1G alternator on my truck but I can find that out.

The only thing that is stumping me is I keep seeing people stating they are having problems with hooking up their chokes. I wanted to ask, this alternator has a stator wire, couldn't you just splice into this wire and run it to the ford choke? Stator only puts out 6 volt or so reguardless right? Atleast that's what I have always though. Want to find out on this cause no one really talks about splicing into the stator wire to maintain function of their factory choke.
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
FAQ - 5-speed transmission swaps ctubutis '80-'86 FAQs (Frequently Asked Questions) 2 01-20-2016 12:26 AM
HOWTO - DSII Conversion (swap from TFI or EECIII / EECIV to DSII) ctubutis '80-'86 HOWTO's 2 05-21-2015 09:18 AM
FAQ - How to determine if engine is a 302 or 351W ctubutis '80-'86 FAQs (Frequently Asked Questions) 0 02-21-2011 01:20 PM
HOWTO - Adjusting Hydraulic Valves ctubutis '80-'86 HOWTO's 0 02-10-2011 09:58 PM
FAQ - Wheel Technical Information (off site) ctubutis '80-'86 FAQs (Frequently Asked Questions) 0 02-08-2011 09:18 PM


Go Back   Ford Truck Enthusiasts Forums > >

Tags
3g alternator

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


All times are GMT -5. The time now is 03:48 AM.


This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.