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'54 Ford 12volt conversion headaches...

Discussion in 'The Hokey Ass Message Board' started by topdeadcenter, Aug 4, 2008.

  1. topdeadcenter
    Joined: Nov 30, 2002
    Posts: 525

    topdeadcenter
    Member

    OK everyone,

    6V positive ground to 12 volt negative ground is the project.

    I had such a good plan. Thought it through, did my homework, etc... and then I discovered that the previous owner was a hack and splice master with stock in an electrical tape factory. I have NO IDEA what is connected to what. All I know is that the car ran on 6V and he messed with the radio wiring, the horn wiring (horn stays on ALL the time when connected.) But that isn't the questions of the hour...

    I am converting from a generator to a 3 wire GM internally regulated alternator.

    QUESTION: I have 2 wires that went to the voltage regulator from the firewall. One was one the Batt terminal and the other was on the "A" terminal. Now that I don't need the regulator, what do these wires get hooked to????

    Question 2:
    The alternator (and I am just trying to be clear), I know that the terminal on the back goes to the Positive side of the battery. But where do the red and white wires go? (in simple terms please, I am NOT an electrical engineer :) )

    I got the car to start and run, but the "gen" light keeps blinking even with the key out of the ignition. So I know I have something F'd up. I just disconnected the battery and called it a night.

    I don't want to tell you what I did to make it run... but I want to get this right. I want to drive the car to a couple of local shows yet this year and possibly the Hunnert.

    Thanks in advance!
    Mike
     
  2. topdeadcenter
    Joined: Nov 30, 2002
    Posts: 525

    topdeadcenter
    Member

    Anyone???? Could really use some help here!
    Mike
     
  3. Dominick Hide
    Joined: Dec 13, 2007
    Posts: 237

    Dominick Hide
    Member

    Red wire loops back and is also connected to the battery terminal on the rear of the alternator. The white wire connects to the small yellow wire that was on the field connection of the original generator. This wire goes to the gen light via a connection at the old regulator. Disconnect the two thin yellow wires at the regulator and splice them together. Do not use the regulator as a junction spot.
     
  4. topdeadcenter
    Joined: Nov 30, 2002
    Posts: 525

    topdeadcenter
    Member

    ok... gotcha I think... but what do I do with the wire that was connected to the "Batt" terminal on the regulator? It is a heavier wire (10 gauge braided)

    The thin wire was on the "A" terminal. Not the "field" terminal. There was just a wire running from the Field terminal to the field post on the generator. (this was part of what was all f'd up.) But, I connected the small wire on the regulator (from the dash) to the white wire on the alternator, the red wire back to the alternator, and the "Batt" wire I still need to figure out.

    So, any suggestions???

    Thanks again!
    Mike
     
  5. I'm taking your reply as the same as I got;clear as mud!I was going to revamp my 6v in an Anglia to 12 but I was told the bother to result ratio wasn't worth it so I'm playing safe,leave it as is!I did find a contact that may help you,Randy Rundle at fifthaveinternetgarage.com.Let us know if you made any sense of it,I always seem to stumble at the last hurdle?
     
  6. topdeadcenter
    Joined: Nov 30, 2002
    Posts: 525

    topdeadcenter
    Member

    Well, I have everything else figured out (I am pretty sure that I just jinxed myself!)

    EXCEPT the wire that was connected to the "BATT" terminal of the voltage regulator. What do I do with it guys?

    Hopefully that will cure the flashing Generator light on the dash. I have NO IDEA what that is all about.

    Someone has to know,
    Mike
     
  7. Bruce Lancaster
    Joined: Oct 9, 2001
    Posts: 21,681

    Bruce Lancaster
    Member Emeritus

    The Bat teminal from old regulator is the connection between gen and battery circuits, so it's where you want the output wire from alt to connect. The bat wire connects in the amneter and battery.
     
  8. topdeadcenter
    Joined: Nov 30, 2002
    Posts: 525

    topdeadcenter
    Member

    Thanks Bruce! (but, just made more questions...)

    hmmmm... so does that mean that I need to connect the rear terminal of the alternator to that wire? Of all the stuff I read, the wire from the rear terminal goes directly to the battery for charging. Or are you talking about the "red" wire off the top of the alternator?

    Here is what I have:

    Alternator:
    Wire from teminal on back of alternator to Positive battery
    White wire from top to the "field" wire from the old regulator.
    Red wire from top to the terminal on the back of the alternator

    Old regulator wires:
    2 wires coming from the firewall
    - thin wire that was attached to the "a" terminal (but probably should have been on the "field" terminal is now attached to the white wire on the alternator.
    - thick wire that was on the "batt" terminal is connected to the thin wire (temporary solution via experimentation to get the car to start) But I know that this is WRONG, so I know that I need to pull that off, but then I am pretty sure that the car didn't start with it just hanging.

    So if I disconnect everything and start over, what should go to what?

    Mike
     
  9. Bruce Lancaster
    Joined: Oct 9, 2001
    Posts: 21,681

    Bruce Lancaster
    Member Emeritus

    The thick wire from alternator...Bat wire connects to battery eventually at the starter solenoid
     
  10. Mr. Creosote
    Joined: Feb 27, 2006
    Posts: 275

    Mr. Creosote
    Member

    I dont know if this helps.. I converted to a single wire bosch alt. Well actually 2 wires. One wire went to the bat and a small one ran up to the gen light on the dash. I took a wireing diag for my car and compared it to a later diag of an alternator equiped car.. It wasnt hard to figure out how to wire it up and eliminate the regulater. If i remember correct the regulator had 5 wires. The two heavy ones got connected together. Another one was connected to the small wire on the alt. it was for the gen light or ign light, now its the alt light. YMMV... Ive seen some where the regulater was left in and the wires rerouted to make it work byp***ing the regulator. I wanted to eliminate the regulator all together hence splicing the wires.
     
  11. Dominick Hide
    Joined: Dec 13, 2007
    Posts: 237

    Dominick Hide
    Member

    In the picture below [I know its 12 volt but layout is the same] the wiring on the left goes into the car and the wiring on the right goes to the generator. When changing to an alternator take the heavy yellow wire connected to the bat terminal on the regulator and the other heavy yellow wire from the arm terminal and join them together. This wire now goes to the terminal on the back of the alternator and is the power source. Next take the thin yellow wire from the regulator arm terminal and connect it to the black/white tracer wire from the regulator field terminal. This wire connects to the white wire on the alternator pigtail plug and works the dash gen warning light. As mentioned before, the red wire on the pigtail also connects to the back of the alternator. This red wire monitors output and controls the internal regulator. No other wiring is nec***ary.

    [​IMG]
     
  12. topdeadcenter
    Joined: Nov 30, 2002
    Posts: 525

    topdeadcenter
    Member

    Thank you that is exactly what I needed!
     

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