Correction exhaust mixing elbow partially blocked On Sun, Jun 26, 2022, 5:04 PM John Read via CnC-List <cnc-list@cnc-list.com> wrote:
> My first thought is blocked exhaust riser – especially if has been several > years since last checked. Causes high back pressure causing engine not > able to rev to spec > > > > John Read > > Legacy III > > 1982 C&C 34 > > Noank, CT > > > > *From:* Robert Abbott via CnC-List [mailto:cnc-list@cnc-list.com] > *Sent:* Sunday, June 26, 2022 9:38 AM > *To:* cnc-list@cnc-list.com > *Cc:* Robert Abbott > *Subject:* Stus-List Yanmar 2 GMF > > > > > Went to take the boat out Friday for a short sail .....motoring out > heading into a12 knt breeze....started to increase the RPM's and found the > engine wouldn't rev about 2,100 RPM's ....marine diesel's are not supposed > to be that complicated but they are to me. I wouldn't know where to start > to trouble shoot....getting a mechanic to deal with it this week. I spoke > to him and told him the situation and he thinks it is a fuel > problem....engine not getting enough fuel....my fuel tank and fuel should > be clean as I had the bottom of it replaced 2 years ago and the 2 fuel > filters replaced. He thinks one or both of the filters are restricting the > fuel flow.....I hope he is right but I don't think so. > > Possibly many are causes....restricted fuel injectors, fuel pump, etc. > ....the engine has never been serviced in the 16 years I have had the boat > > Any insight or guidance to help greatly appreciated. > > Rob Abbott > AZURA > C&C 32 - #277 > Halifax, N.S. > > >
