Air might be getting in without water leaking. It happened to me once, and it took me a while to figure it out.
Alan On Thu, Jun 5, 2025 at 9:00 AM David Knecht via CnC-List < cnc-list@cnc-list.com> wrote: > Hi alan. Wont it leak water if seal is not tight? I have new gaskets on > order but figured if it didn’t leak i was ok for now. Dave > Sent from my iPhone > > On Jun 5, 2025, at 11:39 AM, ALAN BERGEN via CnC-List < > cnc-list@cnc-list.com> wrote: > > > If the cap on the raw water strainer doesn't have a tight seal, you won't > get water pumping. > > Alan > > > On Thu, Jun 5, 2025 at 8:31 AM David Knecht via CnC-List < > cnc-list@cnc-list.com> wrote: > >> Eliminated many possibilities yesterday. Pump shaft turning fine. >> Replaced impeller. Still not pumping water. Has anyone had a priming >> problem? My current hypothesis is that either the pump is not self priming >> or the seacock is partially plugged limiting flow. Water comes into raw >> water strainer with lid off but no idea if it is normal rate or not. Dave >> >> Sent from my iPhone >> >> On May 30, 2025, at 9:39 PM, Ronald Scott via CnC-List < >> cnc-list@cnc-list.com> wrote: >> >> Possibly the impeller connection to the sea water pump pulley became >> disconnected…resulting in the impeller not being turned to pump properly >> the sea water. This happened to me when I had installed both a new >> seawater pump and a new impeller. The guy doing the installation made the >> connection better between the impeller and the sea water pump pulley, and >> normal pumping of water resumed out the stern. He did say that the pulley >> was somewhat worn (where it connects with the impeller), and suggested I >> install a new pulley. Hope this helps! >> Ron Scott >> C&C 35 MK II (Rapid Transit) >> Drayden, MD >> Danville, Ky >> Sent from my iPhone >> >> On May 30, 2025, at 3:51 PM, ALAN BERGEN via CnC-List < >> cnc-list@cnc-list.com> wrote: >> >> >> Is the belt tight enough? Run the engine and see whether the pump is >> turning. If not, tighten the belt. If yes, remove the exit hose from the >> pump and see whether water comes out when the engine is running and the >> pump is turning. If no water comes out, change the impeller. >> >> Alan Bergen >> 35 Mk III Thirsty >> Rose City YC >> Portland, OR >> >> >> On Fri, May 30, 2025 at 12:34 PM David Knecht via CnC-List < >> cnc-list@cnc-list.com> wrote: >> >>> I noticed today when i turned the engine on that i could not hear water >>> coming out the transom port. Just air bubbles. Also the temp gauge read >>> zero which i am guessing would happen with no water near sensor. Opened >>> intake strainer cap and water comes in when seacock is opened. Took cover >>> off sherwood water pump and looks normal inside. No missing vanes. Opened >>> seacock and water came out of hose from the intake. I’m stuck. Any ideas? >>> C&c 34+ >>> Universal m4-30 >>> Thanks. >>> >> Your contributions help pay the fees associated with this list and help >> to keep it active. Please help by making a small contribution using PayPal >> at: >> https://urldefense.com/v3/__https://www.paypal.com/paypalme/stumurray__;!!LIr3w8kk_Xxm!pZPXqf0N06PSxGS6nGO9KrBafHmmNbAHvV1qXeoJBQtWUzsqpX0o7OHRecZKK1B_ilJoRZ2G7haKXPI9iCONU2g$ >> All contributions are greatly appreciated. > > Your contributions help pay the fees associated with this list and help to > keep it active. Please help by making a small contribution using PayPal > at: https://www.paypal.com/paypalme/stumurray > <https://urldefense.com/v3/__https://www.paypal.com/paypalme/stumurray__;!!LIr3w8kk_Xxm!qDCB107FV545ldgV0tlZsQBNKnpSYz9z0E9zQPRdIsNRWQRwwuSzb6re2jDKQW-KijaHYMyaCaM47J4ZkqHtOaQ$> > All contributions are greatly appreciated. > > Your contributions help pay the fees associated with this list and help to > keep it active. Please help by making a small contribution using PayPal > at: > https://urldefense.com/v3/__https://www.paypal.com/paypalme/stumurray__;!!LIr3w8kk_Xxm!qDCB107FV545ldgV0tlZsQBNKnpSYz9z0E9zQPRdIsNRWQRwwuSzb6re2jDKQW-KijaHYMyaCaM47J4ZkqHtOaQ$ > All contributions are greatly appreciated.
Your contributions help pay the fees associated with this list and help to keep it active. Please help by making a small contribution using PayPal at: https://www.paypal.com/paypalme/stumurray All contributions are greatly appreciated.
