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Alternator hook up

Discussion in 'Flat Fender Tech' started by Flat47, Feb 3, 2008.

  1. Feb 3, 2008
    Flat47

    Flat47 Member

    THE County, Maine
    Joined:
    Jul 29, 2006
    Messages:
    172
    While working on another project (installing a Delco 10SI alternator into a tractor) I realized the wiring on the back of my alternator in my 2A is different. Both are Delco 10SI units, three wire. In my flattie the #2 wire goes to the ignition switch. On my tractor, the #2 wire goes to the Batt post on the back of the alt.

    Does it really matter? I've run my flattie like this for 4 years with no charging problems.
     
    Flat47, Feb 3, 2008
    #1
  2. Feb 3, 2008
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
    Joined:
    Nov 6, 2002
    Messages:
    4,275
    Doesn't really matter until the diode trio goes south. Wired to the ignition switch is better IMHO because you aren't exciting the field unless the ignition is "on." With that said, the drain involved with doing it the other way is negligible, so it's OK too. YMMV. ;)
     
    w3srl, Feb 3, 2008
    #2
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