Thread: Water pump impeller blades scraping
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Old 07-02-2011, 01:14 PM   #10
blue2000s
Porscheectomy
 
Join Date: Mar 2006
Location: Seattle Area
Posts: 3,011
Quote:
Originally Posted by JFP in PA
The bits breaking off during cavitation create the scratches as they drag across the vane tips...............
Maybe...

See how it is discolored where the tab would be. Is that something you typically see?
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