outboard fuel tank - SailNet Community
 1Likes
  • 1 Post By tommays
 
LinkBack Thread Tools
post #1 of 9 Old 04-15-2013 Thread Starter
SV Skalliwag #141
 
brokesailor's Avatar
 
Join Date: Jan 2008
Location: Homeport: Solomons, Maryland
Posts: 744
Thanks: 18
Thanked 5 Times in 5 Posts
Rep Power: 9
 
outboard fuel tank

Are the fuel tanks with the vent on the fill cap now ilegal? (EPA Ruling)
brokesailor is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 9 Old 04-15-2013
Mermaid Hunter
 
SVAuspicious's Avatar
 
Join Date: Oct 2006
Location: on the boat - Chesapeake
Posts: 5,203
Thanks: 0
Thanked 245 Times in 220 Posts
Rep Power: 11
 
Re: outboard fuel tank

How can you possibly get the fuel out of a tank without a vent of some sort?

sail fast and eat well, dave S/V Auspicious

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

beware "cut and paste" sailors


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by SVAuspicious; 04-15-2013 at 11:37 AM.
SVAuspicious is offline  
Quote Quick Reply Share with Facebook
post #3 of 9 Old 04-15-2013
Senior Member
 
tommays's Avatar
 
Join Date: Sep 2008
Posts: 4,304
Thanks: 1
Thanked 34 Times in 34 Posts
Rep Power: 9
 
Re: outboard fuel tank

They are trying like hell for diurnal fuel tank emissions vents on installed tanks but the reality that a boat fuel system has different safety issues is slowing it down

On portable tanks so far they have just done self closing spouts that ensure you spill the most possible fuel while using them
T37Chef likes this.

1970 Cal 29 Sea Fever

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

1981 J24 Tangent 2930
Tommays
Northport NY


If a dirty bottom slows you down what do you think it does to your boat
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
tommays is offline  
Quote Quick Reply Share with Facebook
post #4 of 9 Old 04-15-2013 Thread Starter
SV Skalliwag #141
 
brokesailor's Avatar
 
Join Date: Jan 2008
Location: Homeport: Solomons, Maryland
Posts: 744
Thanks: 18
Thanked 5 Times in 5 Posts
Rep Power: 9
 
outboard fuel tank

The new tanks at WM will allow the tank to pressurize up to 5 psig I think without letting it vent. It will keep the tank from drawing a vacuum. This info is off a WM video.
brokesailor is offline  
Quote Quick Reply Share with Facebook
post #5 of 9 Old 04-15-2013
Senior Member
 
pdqaltair's Avatar
 
Join Date: Nov 2008
Location: Deale, MD
Posts: 2,925
Thanks: 1
Thanked 84 Times in 83 Posts
Rep Power: 9
 
Re: outboard fuel tank

Yes, this from the Federal Register:

eCFR — Code of Federal Regulations

(c) Portable marine fuel tanks and associated fuel-system components must meet the following requirements:

(1) They must be self-sealing when detached from the engines. The tanks may not vent to the atmosphere when attached to an engine. An integrated or external manually activated device may be included in the fuel tank design to temporarily relieve pressure before refueling or connecting the fuel tank to the engine. However, the default setting for such a vent must be consistent with the requirement in paragraph (c)(2) of this section.

(2) They must remain sealed up to a positive pressure of 24.5 kPa (3.5 psig); however, they may contain air inlets that open when there is a vacuum pressure inside the tank. Such fuel tanks may not contain air outlets that vent to the atmosphere at pressures below 34.5 kPa (5.0 psig).


I'm not sure any percieved benifit off sets potencial safety issues for these small tanks, but it is true.

Installed tanks can vent though carbon canisters. Based on quite a bit of personal testing, I think this actually benifits the boater, if the design is good. The canisters reduce fuel loss by several gallons per year (both $$ and preserving the most volitile fraction), improve fuel oxidation stability (less oxygen), reduce water absorption (important for e10), and reduce fuel system (carb) corrosion; I've been able to reproduce these benifits in the lab and on the water.

Sail Delmarva: Gasoline and Fuel Tank Vent Filters

(when asked how he reached the starting holds on a difficult rock climbing problem that clearly favored taller climbers - he was perhaps 5'5")

"Well, I just climb up to them."

by Joe Brown, English rock climber




To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
pdqaltair is online now  
Quote Quick Reply Share with Facebook
post #6 of 9 Old 04-15-2013 Thread Starter
SV Skalliwag #141
 
brokesailor's Avatar
 
Join Date: Jan 2008
Location: Homeport: Solomons, Maryland
Posts: 744
Thanks: 18
Thanked 5 Times in 5 Posts
Rep Power: 9
 
outboard fuel tank

PDQ are you a mad scientist? 😎
brokesailor is offline  
Quote Quick Reply Share with Facebook
post #7 of 9 Old 04-15-2013 Thread Starter
SV Skalliwag #141
 
brokesailor's Avatar
 
Join Date: Jan 2008
Location: Homeport: Solomons, Maryland
Posts: 744
Thanks: 18
Thanked 5 Times in 5 Posts
Rep Power: 9
 
outboard fuel tank

So what's the penalty if you get caught out there with the external vented tank?
brokesailor is offline  
Quote Quick Reply Share with Facebook
post #8 of 9 Old 04-15-2013
Senior Member
 
tommays's Avatar
 
Join Date: Sep 2008
Posts: 4,304
Thanks: 1
Thanked 34 Times in 34 Posts
Rep Power: 9
 
Re: outboard fuel tank

Its a going forward standard that does not affect old installs

I have sure not seen a portable 3 or 6 gallon tank that does well with 5 PSI ?

Even my best CARB compliant plastic tank has fits within the confines of my fuel tank friendly garage and it would seem the old school metal tanks would be far more up to the task of containing the pressure fluxuations


I find the fact that they phased out the "outdated" station recovery systems rather absurd as it is when by far when I smell the most fumes but we spent a large fortune on that failed experiment

1970 Cal 29 Sea Fever

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

1981 J24 Tangent 2930
Tommays
Northport NY


If a dirty bottom slows you down what do you think it does to your boat
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by tommays; 04-15-2013 at 04:04 PM.
tommays is offline  
Quote Quick Reply Share with Facebook
post #9 of 9 Old 04-15-2013
Senior Member
 
Join Date: Feb 2011
Location: San Francisco Bay area
Posts: 3,035
Thanks: 9
Thanked 76 Times in 76 Posts
Rep Power: 6
 
Re: outboard fuel tank

I've been using one of the new 3 gal tanks for 9 months now - it seems to work just fine.

Bristol 31.1, San Francisco Bay
MarkSF is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Outboard Fuel Economy/Sizing tschmidty General Discussion (sailing related) 16 01-04-2013 10:25 PM
outboard fuel tank problem MarkEric Gear & Maintenance 3 11-03-2011 03:21 PM
Outboard engine w/integrated fuel tank? AboardIndigo Gear & Maintenance 8 12-25-2007 10:32 AM
Outboard fuel storage leelocke Gear & Maintenance 2 04-12-2005 02:30 PM
outboard fuel pump strength wgwl13736 Gear & Maintenance 5 08-16-2004 09:03 AM

Posting Rules  
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome