The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 10-01-2011, 06:33 PM   #1
MikeJones16
Registered User
 
MikeJones16's Avatar
 
Join Date: Sep 2010
Location: Saskatoon, SK
Posts: 244
Alternator wiring

Which ones of these wires is supposed to hook up to the battery? And it hooks up to the negative side correct?

MikeJones16 is offline   Reply With Quote
Old 10-01-2011, 06:47 PM   #2
68panelman
Registered User
 
68panelman's Avatar
 
Join Date: Jan 2011
Location: Delaware and Long Island, New York
Posts: 3,456
Re: Alternator wiring

They both go on the alternator. plug and threaded terminal.
68panelman is offline   Reply With Quote
Old 10-01-2011, 06:48 PM   #3
MikeJones16
Registered User
 
MikeJones16's Avatar
 
Join Date: Sep 2010
Location: Saskatoon, SK
Posts: 244
Re: Alternator wiring

I know they both go on the alternator but which one goes to the battery? Like the other end. my battery isn't being charged, alternator checked out fine. Realized, I have my one red power cable going to the starter, and only one ground going to the frame.
MikeJones16 is offline   Reply With Quote
Old 10-01-2011, 06:52 PM   #4
68panelman
Registered User
 
68panelman's Avatar
 
Join Date: Jan 2011
Location: Delaware and Long Island, New York
Posts: 3,456
Re: Alternator wiring

The red one going back to the starter puts the charge back to your battery through your positive lead going to the starter.
68panelman is offline   Reply With Quote
Old 10-01-2011, 06:54 PM   #5
MikeJones16
Registered User
 
MikeJones16's Avatar
 
Join Date: Sep 2010
Location: Saskatoon, SK
Posts: 244
Re: Alternator wiring

So I should tie it into the power cable down at the starter? Or put a terminal on the end of it and just have it touching at the starter?
MikeJones16 is offline   Reply With Quote
Old 10-01-2011, 07:00 PM   #6
68panelman
Registered User
 
68panelman's Avatar
 
Join Date: Jan 2011
Location: Delaware and Long Island, New York
Posts: 3,456
Re: Alternator wiring

That depends if your harness is messed with. Alternater wires go to the voltage reg, then feed to your starter and distributor.
68panelman is offline   Reply With Quote
Old 10-01-2011, 07:03 PM   #7
MikeJones16
Registered User
 
MikeJones16's Avatar
 
Join Date: Sep 2010
Location: Saskatoon, SK
Posts: 244
Re: Alternator wiring

Where can I find this regulator? Its not like under the dash or anything is it?
MikeJones16 is offline   Reply With Quote
Old 10-01-2011, 07:07 PM   #8
68panelman
Registered User
 
68panelman's Avatar
 
Join Date: Jan 2011
Location: Delaware and Long Island, New York
Posts: 3,456
Re: Alternator wiring

Should be on your rad support, driver side
68panelman is offline   Reply With Quote
Old 10-01-2011, 07:09 PM   #9
MikeJones16
Registered User
 
MikeJones16's Avatar
 
Join Date: Sep 2010
Location: Saskatoon, SK
Posts: 244
Re: Alternator wiring

ahhhh....

It's most likely not there anymore. frame off restoration.

Is it a bad idea to just wire it without the regulator? or, can i pick up a regulator locally?
MikeJones16 is offline   Reply With Quote
Old 10-01-2011, 07:15 PM   #10
68panelman
Registered User
 
68panelman's Avatar
 
Join Date: Jan 2011
Location: Delaware and Long Island, New York
Posts: 3,456
Re: Alternator wiring

depends on which alternater you have. those wires are for an external voltage regulater. you can get a later one wire alt with internal reg that only joins your poss cable at the batt or starter.
68panelman is offline   Reply With Quote
Old 10-01-2011, 07:17 PM   #11
MikeJones16
Registered User
 
MikeJones16's Avatar
 
Join Date: Sep 2010
Location: Saskatoon, SK
Posts: 244
Re: Alternator wiring

Do you know if theres any modification I need to make? Should all just bolt up and work? I don't care if the gauges work or not.
MikeJones16 is offline   Reply With Quote
Old 10-01-2011, 07:22 PM   #12
68panelman
Registered User
 
68panelman's Avatar
 
Join Date: Jan 2011
Location: Delaware and Long Island, New York
Posts: 3,456
Re: Alternator wiring

The alternaters are have the same mounts. If you go with the internal reg type alt, I would trace back your existing wires and remove to keep down the clutter and single wire the new one to battery or starter.
68panelman is offline   Reply With Quote
Old 10-01-2011, 07:36 PM   #13
MikeJones16
Registered User
 
MikeJones16's Avatar
 
Join Date: Sep 2010
Location: Saskatoon, SK
Posts: 244
Re: Alternator wiring

As long as i can get driving again. I can slowely work on it.

Thank you soo much for the help.
MikeJones16 is offline   Reply With Quote
Old 10-01-2011, 07:41 PM   #14
68panelman
Registered User
 
68panelman's Avatar
 
Join Date: Jan 2011
Location: Delaware and Long Island, New York
Posts: 3,456
Re: Alternator wiring

Glad to help. Good luck with your truck.
68panelman is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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

Forum Jump


All times are GMT -4. The time now is 10:08 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com