Reply To: 1958 10 hp Johnson Mysteries

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September 20, 2024 at 11:20 am #290951
Don
Participant

    US Member

    OK, well that spacer is absolutely required on this engine, along with the orings.  The 1958 10hp is a bit of a mix between the 10hp powerhead and the smaller 7.5hp midsection and gearcase.  The midsection is definitely unique to the 10hp from 58-63