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Jet Pumps / Anybody ever seen this happen
« on: August 26, 2018, 12:07:12 PM »
I'm working out bugs on a recent jet boat purchase. It's a 1977 kachina 18' with jg pump, 496 BBC. Was on the lake running pretty hard when pump lost bite and picked up a mean vibration. I took pump apart and found a nylon wear ring that had came loose. What's the deal with this wear ring?