Since we are on stories of oddness I have 2. First, when cruising along at modest rpm, will have a sudden shut down. Just off. No change in sound, smell, rpm, etc just as if ignition switch cut out. Suspecting a loose connection I proofed all wires / connections and we'll test it out cruising around next week. Any odd ideas to keep in mind?
Second, episodically when motoring at higher rpm close to hull speed will have a sudden racing of the engine with loss of power. Pull back throttle, and goes back to normal but not unusual to reoccur. Haven't noticed it at lower speed or rpm. I'm suspicious of cavitation but haven't thought it thru as to causes, tests of theory, remedies or other options. Thoughts? C&C 29 Mark 1 with a recently rebuilt Atomic 4 and 2 bade folding prop. Karl Kuzis Firefly C&C Mk1 karl.ku...@gmail.com On Tue, Jun 13, 2023, 3:18 AM Korbey Hunt via CnC-List < cnc-list@cnc-list.com> wrote: > Scary stuff. Frustrating when "professionals" muck things up. > > > Get Outlook for Android <https://aka.ms/AAb9ysg> > ------------------------------ > *From:* Todd Williams via CnC-List <cnc-list@cnc-list.com> > *Sent:* Monday, June 12, 2023 6:40:52 PM > *To:* Stus-List <cnc-list@cnc-list.com> > *Cc:* Todd Williams <trwilli...@gmail.com> > *Subject:* Stus-List Re: Engine strangeness > > Jon and others, > > Until two years ago, my boat also used to stall in idle when approaching > docks. Then, midway across Lake Ontario from Cape Vincent to Sodus on a > calm day the fresh water pump/antifreeze circulator seized up. There was > melting belt rubber with smoke as the bearings stopped turning. Five days > and $56 later I had a new antifreeze circulator in place and we haven’t > stalled out since. The friction in the bearings were enough to strain the > engine into a stall. > > TODD > > On Mon, Jun 12, 2023 at 7:26 PM JP Mail via CnC-List < > cnc-list@cnc-list.com> wrote: > > Previous boat > ‘79 Nicholson 303 > Yanmar 2qm15 > 320 hrs. > > Starts and runs all day. Slowing while approaching a dock-stalls. > Change filters, check for loose fuel lines, change crush washers….. > Approaching a dock….stall. Always while slowing down. > Approaching the fuel dock at Dodson’s was told “I’m going there!” By the > nice man on his Hinckley. My response, “Sorry,(engine stalls) I am. > The fuel pickup was at the forward end of the cylindrical tank. When I > slowed, all the crud would slosh forward and block the pickup causing a > stall. > Unfortunately the yard cleaned the tank and replaced it. they also > inadvertently punctured it and diesel would run out the bottom. Found this > out after a day sailing. Back to the yard and a new tank was installed. > Unfortunately they inadvertently severed the propane line while cutting a > 2” hole in a bulkhead to run a new vent line. It was obscured by the > insulation. Found this out when it blew up. With 2 of us onboard. ‘Nother > story. I’m sure I told it here at some point. > Jon Pratt > Hideaway 35-3 > Stamford CT > Sent from my iPhone > Please show your appreciation for this list and the Photo Album site and > help me pay the associated bills. Make a contribution at: > https://www.paypal.me/stumurray > Thanks for your help. > Stu > > Please show your appreciation for this list and the Photo Album site and > help me pay the associated bills. Make a contribution at: > https://www.paypal.me/stumurray > Thanks for your help. > Stu
Please show your appreciation for this list and the Photo Album site and help me pay the associated bills. Make a contribution at: https://www.paypal.me/stumurray Thanks for your help. Stu
