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

[Rod Boer]

Bill,

At 3.785 gallons per hour you will only get a little over 5 and a quarter hours of motoring out of a 20 gallon tank. At 2800 RPM I easily do over 20 hours of motoring with plenty of fuel left over.

Rod Boer
Odyssey #688

-----Original Message-----
From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Bill Sloane
Sent: Tuesday, June 07, 2016 12:24 AM
To: C320-List at catalina320.com
Subject: Re: [C320-list] Yanmar 3Gm30 typical fuel consumption?

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!          /||\
> John                           / ||  \
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>                   /                    || Hull 1118 \
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>         /            2007         ||                                \
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>      \              Lake Guntersville, AL                    l_
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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.!
> >
> >
> >
>
>
>
>
>