https://www.westerbeke.com/parts%20manual/200144_m4-30_parts_man.pdf Pg 31-32?
Jon Tebbens '78 Mega 30 Katherine On Wed, Jul 23, 2025 at 5:13 PM David Knecht via CnC-List < cnc-list@cnc-list.com> wrote: > I am in the process of installing a new water pump to see if it fixes my > engine overheat problem. I still think the main problem is not enough > water coming out of the exhaust so keying on the water pump. But something > occurred to me today while working on it that I had not thought of before. > Is there a thermostat somewhere in the engine (Universal M4-30)? Can those > malfunction? I presume if it did not open, the engine would overheat? I > don't even know where the thermostat is so have never looked at it but I am > concerned whether that is something I need to check. Dave > > David Knecht > S/V Aries > 1990 C&C 34+ > New London, CT > > [image: pastedGraphic.tiff] > > 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.
