David, If the pump is working correctly, it will prime itself. If it is not priming itself, it is not working correctly. (I know, these statements are fairly obvious, but I also know from experience that a well working pump will prime itself through a 10-ft hose, but it won't do that if, e.g., an impeller blade is missing).
Marek 1994 #122 C270 Legato Ottawa, ON From: David Knecht via CnC-List <cnc-list@cnc-list.com> Sent: Thursday, June 5, 2025 10:34 PM To: CnC CnC discussion list <cnc-list@cnc-list.com> Cc: David Knecht <davidakne...@gmail.com> Subject: Stus-List Re: Water pump mystery 2. I asked earlier, but is there possibly a pump priming issue? I have never heard of someone having to do anything to prime there raw water pump. I did read an online engine thread where people had this problem with a particular engine, but simply revving the engine got the pump primed and pulling water. Dave David Knecht S/V Aries 1990 C&C 34+ New London, CT
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