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Connections for marine alternator?

Discussion in 'Engines' started by factorfate, Jun 28, 2021.

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  1. factorfate, Jun 28, 2021
    #1
    factorfate

    factorfate New Member

    Joined:
    Dec 5, 2020
    Messages:
    2
    Location:
    Scotland, UK
    Hi, can anyone tell me what the connections need to be for a marine alternator?
    Three wires came off it but no idea what order to put them back.
    I thin B+ goes to the starter motor and another to the ignition light, and of course negative. Problem is I don't know which wires for which terminals.
    Thank you
    Justin
  2. Capt Ralph, Jun 28, 2021
    #2
    Capt Ralph

    Capt Ralph Senior Member

    Joined:
    Sep 8, 2004
    Messages:
    12,748
    Location:
    Satsuma, FL
    It would help if we knew what model alternator. Maybe some pictures.
    Have you consulted your manuals?
  3. factorfate, Jun 28, 2021
    #3
    factorfate

    factorfate New Member

    Joined:
    Dec 5, 2020
    Messages:
    2
    Location:
    Scotland, UK
    I have no idea what model. It's a Bukh engine. I'll take pictures when I am at the boat again.
    Also, the yacht is 1976 boat, no manuals.
  4. v10builder1, Aug 1, 2021
    #4
    v10builder1

    v10builder1 Senior Member

    Joined:
    Sep 22, 2012
    Messages:
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    Location:
    Centreville/Kent Narrows, MD
    Refer to "The 12 Volt Doctor's Alternator Handbook" book, currently in print.