Register now to get rid of these ads!

Hot Rods Need help wiring a Denso alternator

Discussion in 'The Hokey Ass Message Board' started by Flinttim, Apr 3, 2018.

  1. Flinttim
    Joined: Apr 30, 2011
    Posts: 88

    Flinttim
    Member
    from Indiana

    Gentleman. I'm in the process of building a hot rod Crosley. I know, I know but boys just have to play. The motor is done and I have installed a Denso alternator from a 1987 Suzuki, bought new at local auto supply. I Know about the main line running back to battery, the the three terminals on the back have me confused. I have installed an idiot light in dash and know one goes there but the other two ? Don't want to screw up a new alternator.
     

    Attached Files:

    chryslerfan55 likes this.
  2. KoolKat-57
    Joined: Feb 22, 2010
    Posts: 3,036

    KoolKat-57
    Member
    from Dublin, OH

    Try this diagram...... upload_2018-4-3_15-41-40.jpeg KK
     
    chryslerfan55 likes this.
  3. Mr48chev
    Joined: Dec 28, 2007
    Posts: 30,185

    Mr48chev
    Member

    Can't see squat with that photo but have you already done a search for the wiring diagram for the model of car the alternator was intended for? That would be the first step.
    This ebay item should be the plug you need for the back of the alternator
    eBay item number:
    301835044596
    That would mean that you should be able to source it locally too. That is if the plug matches your alternator as I see there are two plug types.
    https://www.google.com/search?q=198...bZ7p7aAhULs1QKHcWdDJ0QsAQIRw&biw=1094&bih=498
     
    Last edited: Apr 3, 2018
    chryslerfan55 likes this.
  4. KoolKat-57
    Joined: Feb 22, 2010
    Posts: 3,036

    KoolKat-57
    Member
    from Dublin, OH


  5. Flinttim
    Joined: Apr 30, 2011
    Posts: 88

    Flinttim
    Member
    from Indiana

    OK, hot wire running thru idiot light to "L" terminal ? And hot wire off + side of ignition switch to "IG" terminal ? "S" terminal (or number 1 in first diagram) not used ?
     
  6. Flinttim
    Joined: Apr 30, 2011
    Posts: 88

    Flinttim
    Member
    from Indiana

    I guess while I'm asking questions.............how does the original amp gauge figure into the wiring ?
     
  7. KoolKat-57
    Joined: Feb 22, 2010
    Posts: 3,036

    KoolKat-57
    Member
    from Dublin, OH

    From what I saw S terminal is not used, for safety sake I would use a volt gauge and eliminated the ammeter.
    KK
     
    olscrounger likes this.
  8. KoolKat-57
    Joined: Feb 22, 2010
    Posts: 3,036

    KoolKat-57
    Member
    from Dublin, OH

    Picture of plug......[​IMG]KK
     
  9. Flinttim
    Joined: Apr 30, 2011
    Posts: 88

    Flinttim
    Member
    from Indiana

    I have no problem with a volt meter. How would it be wired into this ? Between the solenoid and main line on alternator ?
     
  10. KoolKat-57
    Joined: Feb 22, 2010
    Posts: 3,036

    KoolKat-57
    Member
    from Dublin, OH

    [​IMG]This is how to wire a voltage gauge, very simple!
    KK
     
  11. Flinttim
    Joined: Apr 30, 2011
    Posts: 88

    Flinttim
    Member
    from Indiana

    Since the main line from the battery runs right behind where I would put a gauge, would it be OK to put the gauge right in that line ?
     
  12. KoolKat-57
    Joined: Feb 22, 2010
    Posts: 3,036

    KoolKat-57
    Member
    from Dublin, OH

    The positive terminal on the voltage gauge should go to source that is only on when the ignition is on.
    You do not want the gauge to be on all the time.
    The negative terminal should go to a good ground.
    KK
     
  13. Volt meter can run off any switched 12v power... run switched power wire to meter, and then a wire from the meter to ground.
    By switched I mean a wire that is powered after the key is turned on. For a key with ACC and RUN positions choose the RUN position live circuit.
    Chappy
     
  14. Flinttim
    Joined: Apr 30, 2011
    Posts: 88

    Flinttim
    Member
    from Indiana

    Duh! I should have known that. Thanks guys for the help.
     

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.