One Wire Alternator problem - Team Camaro Tech
Electrical & Wiring Troubleshooting electrical.

LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old Aug 10th, 06, 07:10 PM Thread Starter
Join Date: Nov 2004
Posts: 332
One Wire Alternator problem

Hi All, got all my wiring and starter problems squared away with help from the board...I am in the home stretch. Just got a new one wire summit alternator.
Hooked it up...One wire (4 Guage) from the post on the alternator to the battery side of my kill switch in the trunk.. Anyway it wont charge..Had it tested twice and they say its good. Anyway I had my buddy rev the motor and I put a volt meter on the alternator post and ground and it read 12 volts..not charging. It tested the wire and the connections are good..

If the alternator is no good is that a common thing for a new one to be junk?

Any Ideas??

freebird is offline  
Sponsored Links
post #2 of 4 (permalink) Old Aug 10th, 06, 08:10 PM
Senior Tech
Join Date: May 2004
Location: Southeast PA
Posts: 8,303
Re: One Wire Alternator problem

How high did you rev it? A lot of one-wire alts have to be run up to start charging.

69 'vert project big block/TKO 600 RR
68 'vert driver RS clone -- gone!
Eric Kammerer is offline  
post #3 of 4 (permalink) Old Aug 10th, 06, 08:59 PM
Senior Tech
Harley D
HarleyD67's Avatar
Join Date: Oct 2002
Location: Sugar Creek,WI
Posts: 2,614
Re: One Wire Alternator problem

In most cases 2000-2500 is usually enough to excite it. Mine excites after it's taken over 1000 and continues to charge even at idle @850.

"Be who you are and say what you feel, because those mind don't matter, and those who matter don't mind."-Dr. Seuss
We learn life's important lessons in kindergarten.

Harley D
'67 coupe 427SBC
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
1/[email protected]

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
HarleyD67 is offline  
post #4 of 4 (permalink) Old Aug 11th, 06, 09:06 AM
Senior Tech
Join Date: Mar 2002
Location: Austin, TX, USA
Posts: 5,277
Re: One Wire Alternator problem

Are you sure it's not a 3 wire (a.k.a. 5 wire) alternator such as a CS130? They can be wired as a 1 wire alternator, but the brown lead (that typically is connected to the GEN lamp) needs voltage applied to it to excite the alternator. If you don't use a lamp, you can connect the brown wire to the B+ lead, but you need a resistor in series with it to limit the current. If it is in fact a 1 wire alternator, then disregard.

68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI
dnult is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Thread Thread Starter Forum Replies Last Post
1 Wire - 3 Wire Alternator Question redlines4us Electrical & Wiring 8 Jun 26th, 07 01:16 PM
1969 Camaro Firewall Wire Harmess Phillip_L Electrical & Wiring 3 Jan 23rd, 06 06:10 PM
PO 300 301 302 OBD II 3L 4P Bench Racing 9 May 6th, 05 07:02 PM
welding....need help 69ss350camaro Body Shop 3 Apr 3rd, 03 01:20 PM
Expanded MARTINSR Body Shop 11 Jan 15th, 03 01:57 PM

Posting Rules  
You may post new threads
You may 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

For the best viewing experience please update your browser to Google Chrome