Check the water hose inlet on the exhaust elbo. Typically clogs up right there or inside the elbo. Done this many times with over 40 years of Yanmar. May have to remove the elbo to make sure that you get it good and clean.
-----Original Message----- From: Bill <cnc-list@cnc-list.com> To: Stus-List <cnc-list@cnc-list.com> Cc: Bill <colt...@gmail.com> Date: Friday, 30 May 2025 12:52 PM PDT Subject: Stus-List Re: Water pump mystery i've never had this problem, but always hear Yanmar people complaining of blockage at the exhaust elbow - Bill Coleman On Fri, May 30, 2025 at 3:35 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. Dave Sent from my iPhone 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.
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.
