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Max IV external alternator install

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  • #16
    It will fry the wiring of the smaller rectifier when the larger alternator is at full load. could install a circuit breaker but breaker will eventually fail.
    Acta non verba

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    • #17
      Didn't think about that. I was already planning to disabling the internal alternator by disconnecting the regulator as soon as I get back to messing with it. I am also planning to purchase a larger pulley (maybe 6" vs 4.5") to make the external alternator excite at initial startup without revving the engine.
      Borrowing tools is for the weak.
      -------------------------------------------------------------------------------------------------------------------
      2000 Max IV, 25hp Kohler Command, 26" Titan Tru Power AT's
      1996 Max IV, 18hp Briggs, 24" Serwas
      1998 Max IV (project in waiting)
      1995/1999 Max II, 16hp Briggs, 21" Rawhides
      Hustler 950 (Project in waiting)

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      • #18
        I disabled the internal alternator by disconnecting the voltage regulator. I also did more testing and found that the external alternator does indeed charge at initial startup without revving the engine to excite. I don't have an explanation for why it did not before, but it does now. I will leave the 4.5" drive pulley in place. The alternator puts out 14.7v at idle.
        Borrowing tools is for the weak.
        -------------------------------------------------------------------------------------------------------------------
        2000 Max IV, 25hp Kohler Command, 26" Titan Tru Power AT's
        1996 Max IV, 18hp Briggs, 24" Serwas
        1998 Max IV (project in waiting)
        1995/1999 Max II, 16hp Briggs, 21" Rawhides
        Hustler 950 (Project in waiting)

        Comment

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