Re: 1966 And Later Fuel Pumps
i still had my old pump laying on the bench from this summer when it went bad. i decided to take it apart, and see what went wrong. one of the check valves fell out. i was driving at hiway speed, i think the vibration from 3400 rpm probably vibrated the valve from it's seat in the pump. diaphram looked excellent. looks like manufacturer defect, should have been staked in.
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