[C320-list] Yanmar 3Gm30 typical fuel consumption?

[Bill Sloane]

Last five years - 3.785438 gallons per hour. Cruise at 3,000 rpm
🐠🐠🐠🐠🐠🐠

Bill
Hull 594
Endless Summer
Olympia WA

Is that too precise???

On Monday, June 6, 2016, Greg Flanagan <greg.flanagan at shaw.ca> wrote:

> Exactly what I get Warren. And I measure my fuel level from the hours run.
> Its more reliable than the fuel gauge.
>
>
> Greg
> Hoop Dancer #1076
>
> -----Original Message-----
> From: C320-list [mailto:c320-list-bounces at lists.catalina320.com
> <javascript:;>] On Behalf Of Rod Boer
> Sent: June 6, 2016 9:17 AM
> To: C320-List at Catalina320.com
> Subject: Re: [C320-list] Yanmar 3Gm30 typical fuel consumption?
>
> Warren,
>
> We also cruise at 2800 RPM and 0.5 gallons per hour is what estimate.
>
> Rod Boer
> Odyssey, #688
>
> -----Original Message-----
> From: C320-list [mailto:c320-list-bounces at lists.catalina320.com
> <javascript:;>] On Behalf Of Warren Updike
> Sent: Sunday, June 05, 2016 3:36 PM
> To: C320-List at Catalina320.com
> Subject: Re: [C320-list] Yanmar 3Gm30 typical fuel consumption?
>
> I averaged fuel consumption over a 2 yr period and came up with 0.5gal/hr
> for the Perkins M30, 27HP. We usually try to run at about 26-2800rpm as
> that is the optimum rpm for this engine. That is the point at which fuel
> efficiency is maximized according to the Perkins information. (max-rpm x
> 0.8 is recommended cruising speed per Nigel Calder) Engine is 22 yrs old
> with >2,000hrs, and you can't tell the engine is running by the color of
> exhaust: there is no color.
>
> Warren and Pattie Updike
> 1994 C320 "Warr de Mar" #62
> Middle River, Chesapeake Bay
>
> -----Original Message-----
> From: John Frost [mailto:john at frostnet.net <javascript:;>]
> Sent: Saturday, June 04, 2016 12:54 PM
> To: C320-List at Catalina320.com
> Subject: Re: [C320-list] Yanmar 3Gm30 typical fuel consumption?
>
> The spec for my 3YM30 (Note the Y) has a chart that says approximately
> .3GPH @2000RPM .4GPH at 2250RPM .6GPH at 2500RPM 1.1GPH at 3000RPM 1.3GPH at 3250RPM
> 1.7GPH at 3500RPM 1.9GPH at 3650RPM
>
>                                          +
> Happy Sailing!          /||\
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> -----Original Message-----
> From: C320-list [mailto:c320-list-bounces at lists.catalina320.com
> <javascript:;>] On Behalf Of Karl Mielenhausen
> Sent: Saturday, June 4, 2016 11:32 AM
> To: C320IA Discussion List
> Subject: Re: [C320-list] Yanmar 3Gm30 typical fuel consumption?
>
> Yanmar literature states 0.3 gpm (actually 1.1 lpm) at 1800 rpm.
>
> Karl
>
> On Sat, Jun 4, 2016 at 10:16 AM, Graeme Clark <cg at skyflyer.co.uk
> <javascript:;>> wrote:
>
> > Hi all. I have a broken fuel gauge and we have logged 30 hours since
> > tank was last filled. The local fuel supplier has had a breakdown and
> > I'm some considerable distance from next nearest, with light to calm
> winds!
> > Trying to assess my likely remaining fuel. Of that 30 hrs a large part
> > has been sub 1500rpm just mooring up etc I'm thinking about 0.4 gal/hr
> > maybe 0.5 to be conservative. I have a spare gallon can also!
> > Anyone have a better guess?
> > Thanks
> > Graeme
> > #366, currently in the Isles of Scilly!
> >
> >
> > Sent from mobile: please excuse typos etc.!
> >
> >
> >
>
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