Alternator wiring

Discussion in 'Mech Tech' started by arryhancock, Aug 4, 2020.

  1. arryhancock

    arryhancock Supporter

    Just running my loom through the engine bay and looking at the alternator I think I don't need the voltage regulator, so which wire goes onto the post and which wire goes onto the spade?
     
  2. The thick wire with a ring terminal goes to the B+ post, the blue wire goes to the alt light spade.

    Why do you think you don’t need the regulator?
     
    Bigherb likes this.
  3. arryhancock

    arryhancock Supporter

    Hi @snotty does the alternator have an internal reg if I only have the spade and post connector?
     
    JamesLey likes this.
  4. JamesLey

    JamesLey Sponsor

    If it's a new alternator then most of them use internal voltage regulators now. Any pics?
     
    snotty likes this.
  5. ^this. Post a pic of the top plate of the alt. Likely internal, but best to check.
     
  6. arryhancock

    arryhancock Supporter

  7. arryhancock

    arryhancock Supporter

    As this was a new loom there was no tags as to where all the wiring goes to so having to go through many wiring diagrams to sort,,I think the thick wire goes from the post spliced from the battery to the fuse box
     
  8. Is there a tag terminal somewhere?

    I’d give that post a bit of a wire-brushing ;) Also, move the alt strap a bit further away from it.
     
  9. arryhancock

    arryhancock Supporter

    The tag terminal is in front of the alt strap, will move the strap
     
  10. Zed

    Zed Gradually getting grumpier

    The main terminal for all the heavy duty wiring is the starter soleoid post.
    The heavy alt wire should connect to the solenoid as should the one from the battery and the one supplying the fusebox.
     
    snotty likes this.
  11. arryhancock

    arryhancock Supporter

    Hi zed yep all feeds in 6mm cable
     
  12. arryhancock

    arryhancock Supporter

    Thanks for all your replies, got most of the wiring into the engine now ,moving to the front of the van, look out for more questions
     
    Gnasha, snotty and JamesLey like this.

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