3G Alternator upgrade question

golf4283

Active Member

May 30, 2003

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Orland Park, Illinois

Mar 6, 2009

#1

• Mar 6, 2009

• #1

So I'm upgrading to a ford 3G alternator and I've got it hooked up via the mega fuse to the positive battery terminal. I'm wondering though what ignition source you guys think I should use for the other alternator wire?

Can I just use the wire that I have running to my ignition box or is there a wire from the original harness to use?

Also what do I do with all the old wires for the voltage regulator? Can I just cut and tape off?

There is also a little black thing the size of a AA battery near the voltage regulator. Can this be removed as well?

Thanks for any help guys.

-Dan

 

Tim65GT

Active Member

Feb 24, 2004

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West Texas

Mar 6, 2009

#2

• Mar 6, 2009

• #2

If the wire is 12V when the ign is on, that should be fine. It doesn't draw a lot of current, it is only used as a "turn-on" signal. Don't forget to use a 500-600ohm resistor in-line with it.

Here is a diagram

 

golf4283

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May 30, 2003

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Orland Park, Illinois

Mar 6, 2009

#3

• Mar 6, 2009

• #3

how do I go about installing that and protecting it from the elements? Solder?

 

Tim65GT

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Feb 24, 2004

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West Texas

Mar 6, 2009

#4

• Mar 6, 2009

• #4

golf4283:
how do I go about installing that and protecting it from the elements? Solder?

Click to expand...

Yes, Solder. I covered mine with heatshrink and it's installed under the dash away from heat and vibration.

It should be fine near the alternator too. Just tape it down the the main output cable to keep it secure.

Your old regulator wires can be taped off. By the way, IIRC you can use the white wire for Ign feed.

There is also a little black thing the size of a AA battery near the voltage regulator. Can this be removed as well?

Click to expand...

I think that might be a noise filter. You can remove it. The 3G has all the regulation and filtering built-in.

 

golf4283

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May 30, 2003

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Orland Park, Illinois

Mar 7, 2009

#5

• Mar 7, 2009

• #5

so do I solder it to separate the wire as in between or can I just solder it in line with the existing wire?

Basically does it need to break the wire.

 

Tim65GT

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Feb 24, 2004

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West Texas

Mar 7, 2009

#6

• Mar 7, 2009

• #6

Yes in-line with the wire. You have to cut it.