Reply To: 1946 scott atwater/firestone 3.6hp water pump impeller rotor

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August 1, 2019 at 4:48 pm #180607
John
Participant

    US Member

    16:1 is what Scott recommends and is what I use. They have plain bearings and so need a rich mix.

    JV

    • This reply was modified 7 years, 3 months ago by John.