Foaming in Fuel Tanks: (encasing the tank in plastic foam) more
See full version: GASOLINE FUEL SYSTEMS
Foaming in Fuel Tanks: (encasing the tank in plastic foam) more
Portable Equipment: (portable means it can be removed without using tools)
(b) If a metallic fuel tank is encased in cellular plastic or in fiber reinforced plastic, water must not collect between the plastic and the surface of the tank or be held against the tank by capillary action. more
The same logic applies in other countries that use the Recreational Craft Directive, or the ISO standards. It is much easier for a boat manufacturer to buy tanks from a tank manufacturer who certifies that the tanks meet the regulations that apply in that country, than it is to build your own and go through the lengthy and expensive certification process.
While you're at it, put a fuel whistle in there. No more overfills. [links]
Re: Replacing a fuel tank vent line [links]
Do not vent them inboard, just because you can not see them does not make it a safe thing to do. here
Ayuh. I put a loop in mine, but with the loop, Up, so's it'll drain both ways, 'n not hold any liquids. here
Ayuh. I Love those things.
Re: Replacing a fuel tank vent line more
The result — entirely predictable to boaters, but apparently unforeseen 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, either from the tank end or through the engine. So you can either choose to get sprayed in the face with gas, cause a fine-worthy spill, or vent the tank manually before connecting it, defeating the whole purpose of it's misguided design. I'd recommend the last option.
Step 1: The first step is to disconnect the fuel line from the tank and engine. Drain any gas that might be inside into a glass jar or other suitable container. Anytime you work around gasoline, take sensible precautions, such as working outdoors and away from sources of ignition, such as power tools. In order to get the gas to drain, it's best to disconnect the primer bulb. There's a check valve inside that prevents gas from flowing backward. Once that's out of the way, the gas should drain easily. Check the condition of the gas visually, making sure there are no dark flecks or sludge that would indicate that the fuel line is failing. If the gas is clean, you can dump it right back into the tank. more
Step 4: Connect the fuel line to the tank, then to the engine. Give the primer bulb a few squeezes to get the gas flowing, then test start the engine. Watch your new connections carefully for leaks, and tighten them if necessary.
I have a 1997 1720 Key West and was told I need to replace the fuel line.
Oct 16, 2015 #11 2015-10-16T14:36
I will climb back in and take a look. I thought that may be the vent line because it is not the same line as a fuel line.
I will let you know.