Fuel Shutoff Required Equipment?

[realboats]

I've been under the impression for years that a fuel shutoff was required equipment for any boat with a below deck fuel tank. I've been reading some posts, however, that some folks get their boats directly from the factory with no shutoff.<br /><br />Any opinions on the best place in the system for a fuel shutoff? Mine is located on the input of the fuel/water separator, which forced the hose fitting to be on a 90 degree bend. I've been thinking of moving it to the fuel tank feed tube, as both places are directly under inspection plates and I would have a straighter run to my fuel line. It would make things much cleaner. Any opinions on why I should NOT do this?<br /><br />Thanks,<br />Dennis

 

[rodbolt]

Re: Fuel Shutoff Required Equipment?

hello<br /> the only requirement for hardware is if the fuel line drops below the level of the tank it must have an anti-siphon device.

 

[seahorse5]

Re: Fuel Shutoff Required Equipment?

The following is from the Code of Federal Regulations. It is not required for outboard boats but it does for ABYC/NMMA certification of recreational boats.<br /><br />183.568 <br />Anti-siphon protection.<br /><br />Each fuel line from the fuel tank to the fuel inlet connection on the<br />carburetor must:<br />(a) Be above the level of the tank top; or<br />(b) Have an anti-siphon device or an electrically operated fuel stop valve:<br />(1) At the tank withdrawal fitting; or<br />(2) Installed so the line from the fuel tank is above the top of the tank;<br />or<br />(c) Provided that the fuel tank top is below the level of the carburetor inlet,<br />be metallic fuel lines meeting the construction requirements of Sec.<br />183.538 or “USCG Type A1” hose, with one or two manual shutoff valves<br />installed as follows:<br />(1) Directly at the fuel tank connection arranged to be readily accessible<br />for operation from outside the compartment, and<br />(2) If the length of fuel line from the tank outlet to the engine inlet is<br />greater than 12 feet, a manual shutoff valve shall be installed at the<br />fuel inlet connection to the engine.