[C320-list] Perkins fuel consumption

[John Meyers]

My Yanmar  3GM30F gets anywhere between 2 and 2.5 hours per gallon and I
usually run between 2800 and 3000

On the noise thing...   This year I replaced the air "filter"  which really
wasn't much left of it. The noise reduction is very noticeable as the cone
shaped foam filter really cuts down on the noise coming from that part of
the engine. I also have sound insulation on both covers which I put on a
few years back and that helped a lot too back then.

John Meyers
Wind Chime #406
Muskegon, MI

On Thu, Sep 3, 2015 at 7:22 AM, bruceheyman <bruceheyman at cox.net> wrote:

>
>
> Have you ever had the injectors serviced or valves adjusted?  I did both
> and the low rpm knocking improved.
>
>
> Bruce Heyman(949) 289-8400
>
> -------- Original message --------
> From: Louis spitz <aronella at gmail.com>
> Date: 09/03/2015  1:56 AM  (GMT-08:00)
> To: c320-list at lists.catalina320.com
> Subject: [C320-list] Perkins  fuel consumption
>
> Hi all,
> My 1995 Perkins 29 hp with 875 hours uses about 2.6 gals. of diesel per
> hour. The manual says fuel consumption at 2700 rpm should be about 1.6 gph.
> The exhaust is clean (not smoking). The engine knocks very badly at low
> rpms, say below 1000, but I don't think that's related. Also, the engine is
> VERY loud. I added insulation to the cover in the main cabin, but not yet
> in the aft cabin.
> Any thoughts on these issues would be much appreciated.
> Lou Spitz
> #195, 1995 Merry Chase