[C320-list] Fuel sender access

[Greg Flanagan]

I have a Yanmar Y3M30. I too use the engine hours ~ = fuel consumption? I cruise mostly at 2800rpm (~5knots). But I  run it at 3000 and 3200 for periods of time. I rev it to 4000 for a minute before shutdown after docking or anchoring. And I use the diesel furnace one in awhile. I can reliably approximate 2 litres per engine hour for refuelling. That’s about .5 US gallons. 

Cheers,

Greg
Hoop Dancer #1076
Sidney, BC

> On Nov 5, 2020, at 11:04 AM, Jack Brennan <jackbrennan at bellsouth.net> wrote:
> 
> Hi Dennis:
> 
> The fuel consumption chart for the Yanmar 3gm30 goes from .4 gallons an hour at 2000 to 1.6 at 3,400. At a cruising speed of 2,800, you get about .89 gallons an hour.
> 
> This gets a little tricky because you don’t want to run the diesel too slowly. That encourages carbon buildup and hastens a rebuild. Diesels want to be run hard to be long-lived. (I.E., 10,000 hours or more.) Better to burn a little more fuel and have a happy motor.
> 
> If you’re running slowly for some reason, get to an open stretch of water and crank it over 3,000 rpms for 10 minutes or so.
> 
> Jack Brennan
> Sonas, 1998 Catalina 320
> Tierra Verde, Fl.
> Dolphin Cruising Club of Tampa Bay
> 
> 
> 
> 
> Sent from Mail for Windows 10
> 
> From: Dennis Cookson
> Sent: Thursday, November 5, 2020 12:53 PM
> To: C320-List at catalina320.com
> Subject: Re: [C320-list] Fuel sender access
> 
> Y
>