Donate Now Goal amount for the next month: 150 USD, Received: 20 USD (13%)
Any help with the $200+ per month expenses of maintaining MoparStyle will be greatly appreciated

Results 1 to 3 of 3

Thread: Dual field alternator wiring question

  1. #1
    MoparStyle Member
    Join Date
    Aug 2009
    Posts
    1
    Post Thanks / Like

    Default Dual field alternator wiring question

    Hey all, new to the site but I have been doing Mopars for the better part of 25 years now. I have a question that has me stumped and I thought maybe someone out there could help. Heres the story... I recently changes to the dual field alternator in my 66 Barracuda. I changed the voltage regulator to the new style and added the second field wire and ran it to the ignition/on wire at the regulator (the blue wire) as per the instructions in an older article in a Mopar periodical. In the article it states that it doesn't matter which terminal on the alternator the 2 field wires should be hooked to as both are field terminals and do the same thing. After hooking it all up, the car would not start. I unhooked the added field wire and it fired right up, and when I tried to hook it back up it would kill the engine. I reversed the field wires on the alternator and it fires right up and charges as it should. My question is this... Why will it work being hooked up one way, but kill the engine when reversed? I don't get it. Any help would be most appreciated. Thanks, Geof

  2. #2
    Director / Lifer dodgeboy8's Avatar
    Join Date
    Nov 2008
    Location
    Ontario, Canada
    Age
    63
    Posts
    4,000
    Post Thanks / Like

    Default

    I don't know as it should have worked as they told you. I'll bet the one field is grounded just like on the 60's dual field and hooking to it gives a dead short!!!

  3. #3
    Director / Lifer dodgeboy8's Avatar
    Join Date
    Nov 2008
    Location
    Ontario, Canada
    Age
    63
    Posts
    4,000
    Post Thanks / Like

    Default

    If it is the original alternator one field would be grounded by default and only needs the live from a single wire regulator to work!! The newer ones the brushes are both isolated so work as you wired or as i do I ground one wire to the body with a small wire and put live from single wire regulator to the other!

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Kill Switch & 2 Field Alt.
    By 77dragracer in forum Drag Racing Mopars
    Replies: 17
    Last Post: 02-07-2011, 02:18 PM
  2. Another Alternator question
    By dillray1 in forum Recycle Bin
    Replies: 9
    Last Post: 08-01-2009, 03:12 PM
  3. Best dual plane manifold
    By demonram in forum Recycle Bin
    Replies: 4
    Last Post: 03-07-2009, 10:02 PM
  4. Replies: 18
    Last Post: 02-25-2009, 12:14 PM
  5. NOS 340 dual exhaust pipes
    By R-body_mopar in forum Recycle Bin
    Replies: 0
    Last Post: 11-23-2008, 08:08 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •