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Is It Possible to Over Zinc?

Discussion in 'Technical Discussion' started by FIQ, May 24, 2016.

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  1. FIQ, May 24, 2016
    #1
    FIQ

    FIQ Member

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    Normally I have 2 zincs on each of my two 2"x 10' shafts.

    One yard guy suggested that I put 3 zincs on each shaft, and another said that it would probably over zinc it.

    What?

    Can one hang too many zincs on a boat?
  2. Capt J, May 24, 2016
    #2
    Capt J

    Capt J Senior Member

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    YES, do not do it. Think of a zinc as a ground. Over zincing it will cause some metals to degrade as well.
  3. dennismc, May 24, 2016
    #3
    dennismc

    dennismc Senior Member

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  4. C team, May 25, 2016
    #4
    C team

    C team Senior Member

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    I've seen boats in my marina with many shaft zincs and I wonder if that has a detrimental affect on shaft balance?