So, this fine piece of work didn't vent a few fumes, but instead vented about 5.5 gallons of liquid gas. Excellent.
See full version: New EPA Fuel Caps, Portable Tanks
So, this fine piece of work didn't vent a few fumes, but instead vented about 5.5 gallons of liquid gas. Excellent.
Re: New EPA Fuel Caps, Portable Tanks more
Overpressure flooded the carb via the worn out float needle.
I have to admit that on really hot days, when it starts to swell up like a balloon, I crack the cap a little to relieve the pressure build-up. here
Re: New EPA Fuel Caps, Portable Tanks here
I now have a brass needle valve screwed into the top of the tank. Its opened just enough to left the pressure slowly escape before it gets a chance to build, but not enough to actually let gas slosh out.
Find the access to the fuel tank fill and vent fittings on top of the fuel tank. Once you get to these hoses, remove the vent hose which is most commonly a 5/8″ vent hose. With the hose off, blow on the other end and see if air comes out.
A boat fuel tank overflow can be caused by a clog in the vent. The fuel tank vent is located on the outside of the boat, normally relatively close to the fill port on the gunwale of the boat.
Some vents have screens on them which can get salty, dirty, or clog up. Unscrewing the vent or removing the screen, depending on which vent port you have. Will allow you to check this issue.
Aaron has been working in the Marine Industry for over a decade and holds certifications for Yamaha and Mercury Marine. It is not uncommon for him to own and be working on at least three different boats at any given point in time!
"Any time that you have fuel venting, there's always a safety issue. you just don't want to have gasoline spilling into your boat, or back by the engine," said John Neville, Mercury's director of global service parts division. here
"Without a vent, there's no way to release the pressure that builds up in the tank when it gets heated by the sun. The result — entirely predictable to boaters, but apparently unseen by regulators — is gas pouring out of the outboard and into the water, driveway or backyard. And before you ask, leaving the tank disconnected just results in the same gush of gas once you do hook it up," Vatalaro said on the BoatUS website. [links]
It's a fire hazard, in addition to polluting the environment, said Charles Fort, BoatUS director of consumer affairs.
"If this happened in an enclosed space. it could be catastrophic," Fort said, although he wasn't aware of fires resulting from the problem. more
If you don't want to install one of the valves yourself, go to a marine dealer and get a fuel tank that already has it, Plueddeman said.
Portable fuel tanks that are affected by these regulations include 3.1-gallon (12L) and 6.6-gallon (25L) tanks, which are applicable to all Yamaha F4A through F70LA models. EPA regulations allow manufacturers and dealers to deplete existing inventories of non-compliant portable fuel tanks. Yamaha will change from the original-style engine and fuel hose connectors to the new-style connectors as the inventory of non-compliant fuel tanks is depleted. more
In 2009, the EPA mandated the use of low-permeation fuel hoses, and effective January 1, 2011, new boats will also have to use low-permeation primer bulbs as well. In addition, all new portable fuel tanks must now meet low-permeation and evaporative emission standards. To meet these standards, the fuel system itself (including the tank, lines and components) must be sealed, which may cause the fuel tanks to become pressurized.
Specifically, they employ a twist-on locking design to create a seal before permitting fuel flow when connecting or disconnecting. This feature greatly helps reduce the possibilities of fuel spray or leakage when the fuel line is removed or installed. The Yamaha-specific connectors are found on both the outboard side and the tank side of the new Yamaha fuel lines. They are available at all Yamaha dealerships and are accompanied by instructions that outline correct methods of tank operation. Make sure you are familiar with these instructions so that you can ensure your components are compatible and matched correctly. [links]
It’s important to note that tampering with new compliant products to limit their abilities to reduce emissions as designed is against federal and anti-tampering regulations and subject to penalties. Yamaha strongly discourages retrofitting new components with old-style components. here
Nov 04, 2019 #7 2019-11-04T22:10 more
Nov 04, 2019 #4 2019-11-04T17:35
Nov 06, 2019 #11 2019-11-06T03:01 [links]
Nov 05, 2019 #8 2019-11-05T15:12 here