Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 03-02-2006, 05:38   #1
Registered User

Join Date: Jun 2005
Location: Nova Scotia
Boat: Morgan 382 "Tropical Wave"
Posts: 33
Larger Fuel Tank

We are (still) interested in a Pearson 34 CB for a cruise down the ICW and then the Bahamas / Northern Caribbean. The Pearson is one boat that seems to be a reasonable compromise (i.e. I can't find a compelling reason NOT to buy one) with the exception of her limited (20US gal) fuel capacity. I would be much happier with 30 gal of diesel. I know I can carry a couple of jerry cans, but then you are challenged with getting that fuel into the tanks in the middle of the night when it is blowing 20kn and the seas are running 10 ft. (yes, i know I shouldn't be out there motoring in those conditions, but humour me please).

So what are the viable options? I read about people adding additional tankage for water, but how difficult is it to add a 2nd tank for fuel? Or does anyone know these boats well enough to know if I could install a larger tank in place of the stock 20-gal one?

Or am I far too worried about it, and I should just but buy the boat and 2 big yellow cans of diesell and go for it?

Thanks for your guidance.


chuckiebits is offline   Reply With Quote
Old 03-02-2006, 08:08   #2
Registered User
Fishspearit's Avatar

Join Date: Jan 2006
Location: FL
Posts: 576
Or am I far too worried about it, and I should just but buy the boat and 2 big yellow cans of diesell and go for it?
IMHO, I think you hit on the answer there. What size engine does the boat have and how much does she drink per hour? I made the trip you contemplate with a 20 gallon fuel tank and two of the big yellow cans. Mine was a 30' boat with a 2 cylinder 25 hp Volvo that sipped just a 1/2 gallon an hour motoring 5 kts in a smooth sea. That gave me (15 x 2 x 5) 150 nautical mile range while leaving 25% in the tank to avoid sucking air in the line in a rough sea. (12 x 2 x 5) 120 additional miles from the 6 gallon cans, which are also important because in the remote areas they give you the freedom to fill the tank by dingying ashore. Only once did I struggle to add fuel to the tank, while crossing the Mona Passage on a bumpy trip between the Dominican Republic and Puerto Rico, and most of it still mananged to get into the tank. Almost everywhere else the passages are short enough between fuel stops that I did my tank filling at anchor.

Fishspearit is offline   Reply With Quote
Old 03-02-2006, 10:05   #3
Senior Cruiser
Alan Wheeler's Avatar

Cruisers Forum Supporter

Join Date: Dec 2003
Location: Marlborough Sounds. New Zealand
Boat: Hartley Tahitian 45ft. Leisure Lady
Posts: 8,038
Images: 102
A second tank is very simple. A larger tank is just as simple. The issue will be, can I find room to fit a second tank, or is there room enough to enlarge what I have. Apart from that, 10gallons is not a large amount of fuel. Sorry I can't convert to ltrs, but I use 10 ltrs/hr in econo mode and 15 ltrs/hr if I push her along. I have 360ltrs onboard. Thats fine for most of my sailing, but if I want to do extended coastal, I need more.
It's a four hr trip under motor to our sailing grounds which is a bummer, arrrr, but the most spectacular scenery on the way, so I suppose I better stop complaining

For God so loved the world..........He didn't send a committee.
Alan Wheeler is offline   Reply With Quote
Old 03-02-2006, 13:44   #4
Registered User

Join Date: Sep 2005
Location: Puget Sound
Boat: 1981 C&C 34
Posts: 49
My C&C 34 also has a 20 gallon tank that feeds a 20hp Yanmar. I roughly figure it has a two day run-time and try to fill the tank in the morning if I anticipate motoring all day.

I picked up a "Petro Pump" (not from Amazon, Boater's World had them for around $20 without the gas can) and use it to transfer fuel. It makes far less of a mess when I can do it with the fuel can sitting on the cockpit floor.
JohnWms is offline   Reply With Quote
Old 03-02-2006, 13:50   #5
Registered User
CaptainK's Avatar

Join Date: Sep 2005
Location: Phoenix, Arizona... USA
Posts: 2,386
Images: 7

I converted the liters for you.

10 ltrs per hour is 2.64173 US gallons.

15 ltrs per hour is 3.96259 US gallons.

Your total fuel tankage is 360 ltrs = 95.10223 US gallons.

"Those who desire to give up Freedom in order to gain security, will not have, nor do they deserve, either one." - Benjamin Franklin
CaptainK is offline   Reply With Quote
Old 03-02-2006, 15:34   #6
Registered User

Join Date: Jun 2005
Location: Nova Scotia
Boat: Morgan 382 "Tropical Wave"
Posts: 33
Alan, 10 gal is a lot of fuel when the tank only holds 20... it's a relative thing.

And I am assuming the consumption is probably .5 to .75 gal/hr (say roughly 2-3 litres/hr) so I am talking about an extra say 15 hours or 90 miles (@ 6kn). That is significant enpugh to make me want to investigate up-sizing the tankage.


chuckiebits is offline   Reply With Quote

fuel, fuel tank

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Nigel Caulder on Hoses GordMay Construction, Maintenance & Refit 19 30-06-2015 12:14
Diesel fuel electronic monitor leehaefele Engines and Propulsion Systems 27 02-11-2006 18:27
"SensaTank" Fiel-Effect Tank Monitor GordMay Construction, Maintenance & Refit 2 24-07-2004 00:55
Fresh water tank leak lannen Construction, Maintenance & Refit 4 09-10-2003 17:55
Need to do a Gas tank modification on MacGregor 26 Pisces Construction, Maintenance & Refit 2 21-04-2003 09:43

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 05:46.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.