When my centrifugal pumps start to lose it, it's usually from too much impeller end-play on the shaft. A thin copper or nylon washer that reduces that play has always seemed to get them pumping like new.
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Thread: Loss of AC Pump Prime
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Re: Loss of AC Pump Prime
Semper Siesta
Robert Clarkson
ASLAN, 1983 55C #343
Charleston, SC
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Re: Loss of AC Pump Prime
No, with metal impellers (Scott, Cruisair etc) you get erosion on the impeller leaving a stump. No vanes = no flow
Pascal
Miami, FL
1970 53 MY #325 Cummins 6CTAs
2014 26' gaff rigged sloop
2007 Sandbarhopper 13
12' Westphal Cat boat