Too Much Alternator Ground ?? (not on a Jeep) - Off-Road Forums & Discussion Groups
Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

 
LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 05-30-2002, 06:25 AM Thread Starter
Journeyman
 
Join Date: Jan 2002
Location: Harford County Maryland
Posts: 125
Thanks: 0
Thanked 0 Times in 0 Posts
 
Too Much Alternator Ground ?? (not on a Jeep)

I just replaced the alternator on my 84 2.2 Turbo Laser daily driver. Now it won't shut off unless I disconnect the factory ground lead to the alternator. This was a straightforward swap with no other problems. I'm reasonably certain that I got the correct replacement alternator and it was replaced due to a noisy bearing not an electrical problem. The new alternator charges fine with the ground wire attached but turning off the key has no effect - everything including accessories continues to work just fine. Without the ground wire connected charging amperage drops off too far to just leave it disconnected. This is the factory ground wire not some homade addition.

Hey?? What happened to my SIG????????
7T8CJ7 is offline  
Sponsored Links
Advertisement
 
post #2 of (permalink) Old 05-30-2002, 06:41 AM
Official Historian
 
WILL's Avatar
 
Join Date: Sep 1999
Location: Hot Springs, AR
Posts: 8,339
Thanks: 1
Thanked 5 Times in 5 Posts
 
Re: Too Much Alternator Ground ?? (not on a Jeep)

Hopefully TeamRush will answer because I don't think anyone else will touch an electrical, ignition or charging question with a 10' pole.
WILL is offline  
post #3 of (permalink) Old 05-31-2002, 01:12 AM
 
Join Date: Sep 1999
Posts: 5,383
Thanks: 0
Thanked 1 Time in 1 Post
 
Re: Too Much Alternator Ground ?? (not on a Jeep)

I'm surprised no one told him to put an HEI ignition in it to fix the problem...
<hr>

If you have the little Nippon-Denso alternator, one of two things is wrong.
1. Your 'Rebuilt' alternator is defective.
2. You have two wires reversed, the excite wire and the rotor wire.

My bet is they used a bridged rectifier and someone reused a cracked insulator and you are leaking power to ground.

Make sure the case is getting a good ground, don't rely on the bracket.
Junk Yard Genius is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

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

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










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



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

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