Reply To: Oliver 6 HP fuel pump help needed

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January 21, 2024 at 10:52 am #284191
frankr
Participant

    Several years ago I studied the Oliver fuel pump till my brain hurt. Still hurts but I think the check valves are the holes and diaphragm in the slots at the ends. Think outside the box. The diaphragm probably has to be just right in thickness and stiffness. That’s all I remember just now.