[C320-list] Another Yammer 27 question

[Pat Ireland]

Congratulations on the new boat.  And you have a wonderful venue to
sail her.  2500 sounds a bit low.  We run at about 2800 as Warren
suggests.

On 8/28/12, Warren Updike <wupdike at hotmail.com> wrote:
> Ditto, congrats on your new boat.
> Of course you should direct such questions to a Yanmar qualified technician
> and your Yanmar manual.  That said, common wisdom is diesels run best at
> about 80% of max. rpm and that may be different for different engines. For
> mine, that equates to 2800.  There should be a "power curve" associated
> with
> your engine that will show fuel consumption vs. rpm.  From that, you can
> decide what would be your preferred cruising rpm.
> Diesels like to be run hard.  Extended operation at lower rpm's cause
> insufficient fuel combustion, carbon build-up in the engine and mixing
> elbow, and smoky exhaust.
> It might be a good idea to consider calibrating your tachometer.  The C320
> tool loaner has (or did have) an optical tachometer for that purpose.
> Good luck, pay your dues and check this list often.
>
> Warren & Pattie Updike
> 1994 C320 #62 "Warr De Mar"
>
> -----Original Message-----
> From: Gene Helfman [mailto:genehelfman at gmail.com]
> Sent: Monday, August 27, 2012 8:31 PM
> To: C320-List at catalina320.com
> Subject: Re: [C320-list] Another Yammer 27 question
>
>  We're happy as the new owners of *Satori* (#398), having just finished a 5
> day familiarization cruise around the San Juan Islands.  Our summer winds
> are flukey, which means a lot of motoring.  The previous owner said 2500
> RPM
> was a good cruising speed.  Is this what most people use for long passages?
>
> gene and judy
> --
> Gene Helfman, Professor Emeritus
> Odum School of Ecology, University of Georgia PERMANENT address:
>     498 Shoreland Dr., Lopez Is., WA 98261
>     (360) 468-2136
>     genehelfman at gmail.com
>
> "Give a man a fish and he'll eat for a day, Teach a man to fish and he'll
> deplete the
>       oceans."
>
> The Book of Bob, Ironies 24:7
>
>
>