Reply To: Mercury KF-7 water circulating question.

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September 4, 2021 at 10:28 am #246114
DAVID
Participant

    US Member

    The nut for the lower unit stud in the pic is a hex. it should be a SQUARE, and for a reason. If it is square and synced so the powerhead will drop in the nut will not turn an loosen up . a hex can turn and loosen.