Definitely low or no water flow. Drilling out the water injection elbow that connects to the exhaust elbow might buy you some time.
Jim Watts Paradigm Shift C&C 35 Mk III Victoria, BC On 3 September 2016 at 18:19, svpegasu...@gmail.com via CnC-List < cnc-list@cnc-list.com> wrote: > Sounds like a partially plugged mixing elbow, or maybe something blocking > thr raw water someplace. Could also be a bad impeller. > > > Doug Mountjoy > > svPegasus > > LF38 #4 > > just west of Ballard, WA. > > > > ------ Original message------ > > *From: *Syerdave--- via CnC-List > > *Date: *Sat, Sep 3, 2016 17:37 > > *To: *C&c Stus List; > > *Cc: *syerd...@gmail.com; > > *Subject:*Stus-List Loud Yanmar 2gm - like open exhaust? > > > This just started happening this weekend. When first started and idling the > exhaust is noisy - like an open exhaust, maybe no water. Run it for a bit at > higher rpm, and suddenly it quiets down and sounds normal. Next cold start, > same thing. Did a quick check of the raw water strainer underway, and there > was some stuff in there, but water was being sucked through. Is the > mixing elbow clogging? Haven't had that off yet... Thanks > all!Dave._______________________________________________This list is > supported by the generous donations of our members. If you like what we do, > please help us pay for our costs by donating. All Contributions are greatly > appreciated! > > > _______________________________________________ > > This list is supported by the generous donations of our members. If you > like what we do, please help us pay for our costs by donating. All > Contributions are greatly appreciated! > >
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