Fuel Tank Capacity Engines and Such Forums


Please consider registering

sp_LogInOut Log In sp_Registration Register

Register | Lost password?
Advanced Search

— Forum Scope —

— Match —

— Forum Options —

Minimum search word length is 3 characters - maximum search word length is 84 characters

sp_Feed Topic RSS sp_TopicIcon
Fuel Tank Capacity
North Forida
November 6, 2015 - 6:26 am
Member Since: March 24, 2013
Forum Posts: 37
sp_UserOfflineSmall Offline

I guess by now, most people have noticed that the stated fuel tank capacity in the info about the boats, depends on which item your reading.  I've seen both 90 Gallons US, as well as 75 Gallons US as popular capacities.  I even found some drawings and calculations from a previous owner where he had determined the capacity to be 100 Gallons.

Recently, I had all the fuel in my factory tank pumped out, and the interior of the tank cleaned.  At this point I checked the tank and visually confirmed it was both clean, and empty.  I then poured 10 gallons of new fuel in, ran the new engine for about 50 minutes ( at best I used 1 gallon).  I then pumped 60 Gallons of fuel in, and did a visual check again.  ( removed the gauge flange)   I had intended to top off the tank using 5 Gallon cans after that, but was shocked to find the tank was full to the brim. I had maybe an 1/8 inch left in the top of the tank.  Any movement at all on the boat caused it to slop out. I'm sure 1 Gallon would more than max it out.  So with this new found experience, I've determined that my tank is 70 gallons max.

As with numerous things on the boats, Down East seemed to have trouble settling down to one design ( Or maybe in this case, supplier?).  I've come to look at the "specs" for the boats as guidelines, rather than fact in many cases.  One of the things I'm on the lookout for, is 2 Down Easter's that have the same design for the main hatch...so far, it appears each one is different.

Maybe somebody who has been puzzling over the tank capacity will find this info of value.

Print Friendly

S/V The Last Farewell,

Currently laying Panchos Marina

Marathon, Florida

Scott Carle
November 6, 2015 - 8:37 am
Member Since: October 10, 2009
Forum Posts: 1480
sp_UserOfflineSmall Offline

I think you will find almost any boat built in this age range to be fairly custom in the small details. It's not like a modern beneteau and even they in the same model will have variations year to year as I can personally attest.
Our boats are all roughly the same but availability of parts from different manufactures varied year to year and even boat to boat. Then you had variations based on what special upgrades the original owners paid to be installed or have the design modified as to layout of cabins, running rigging, etc...

Print Friendly
Scott Carle DE38 Cutter s/v Valkyr
Patrick Twohig
San Diego, CA

November 16, 2015 - 2:42 pm
Member Since: March 13, 2014
Forum Posts: 134
sp_UserOfflineSmall Offline

The stamp on the tank should be what indicates the capacity.  Of course, that's buried under 3" of teak and fiberglass.  When they pulled the tank from my boat, it was listed at 84 gallons.  I'm sure 90 gallon number was just a fib that the Downeast Yachts marketing guys came up with back in the day.

Print Friendly
Forum Timezone: America/New_York

Most Users Ever Online: 120

Currently Online:
9 Guest(s)

Currently Browsing this Page:
1 Guest(s)

Members Birthdays
Today None
Upcoming None

Top Posters:

Jonathan Oasis: 174

bobmcd625: 165

CAE: 150

mgav451: 143

Rick: 94

svbodhran: 84

Member Stats:

Guest Posters: 7

Members: 364

Moderators: 1

Admins: 1

Forum Stats:

Groups: 3

Forums: 13

Topics: 744

Posts: 3833

Newest Members:

Spirare, BradHartliep, Duncan, MistyDawn, realitysailing, Kwally@sbmn

Moderators: Patrick Twohig: 134

Administrators: Scott Carle: 1480