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Is this fuel line going to be Coast Guard approved?

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  • Is this fuel line going to be Coast Guard approved?

    Hi, Mercruiser/ Chevy 350 hooked to an alpha one. Finally getting around to converting my Thunderbolt igniton, 4 barrel rochester carb system over to the multi port fuel injection system I bought end of last season. Am in the process of running fuel lines and am wondering if this high pressure fuel hose (rubber end part) is going to be legal? I did check the regs, and I am running steel line all the way except the ends where they hook into the fuel rail.

    Hope this link works...
    http://i88.photobucket.com/albums/k1...z/IMG_2403.jpg


  • #2
    Re: Is this fuel line going to be Coast Guard approved?

    I hope that you are aware that there are Federal Laws concerning fuel system components in gasoline powered boats.

    All fuel items have to be certified that they withstand a 2.5 minute direct flame while filled with gasoline. There are also regulations on types of materials, clamps, hoses, pumps, vents, etc.

    If you are converting an automotive fuel injection system, not only are you breaking the law but putting yourself, your loved ones, and innocent bystanders in danger.

    Some additional info is in this link:

    http://www.uscgboating.org/safety/bo.../fuel/fuel.htm

    Comment



    • #3
      Re: Is this fuel line going to be Coast Guard approved?

      It's a marine unit.

      Comment



      • #4
        Re: Is this fuel line going to be Coast Guard approved?

        I checked the above link, the problem I am having is there isn't much info with regards to fuel injection. As it is a completely closed fuel system, unlike carbs. The feed line is 3/8" Steel, the return is 5/16" steel. The little rubber end hose I'm using with clamps is high pressure fuel injection hose. It does say fuel injection on it, although I can't see "Marine" anywhere... hence my question. I definitely don't want to blow myself or anybody up, that's why I am asking.


        Originally posted by AdamB
        It's a marine unit.

        Comment



        • #5
          Re: Is this fuel line going to be Coast Guard approved?

          I'm not sure I can link to another vendor but:

          http://www.affordable-fuel-injection...on-systems.htm


          Comment



          • #6
            Re: Is this fuel line going to be Coast Guard approved?

            There are two things you need to check. The first is what the rubber hoses attach to. Each "barb" must be exactly that. It can't be just flat, i.e. hose over steel fuel line. The barbs have to have a flare, bulb, or be barbed. If your injection system is a marine unit, chances are its fittings are correct. However, what did you do to the end of the steel fuel line you used? If you use a double flare tool ( cheap to buy at Harbor Freight or free to rent at some auto parts stores like Pep Boys) it's easy to make bulbs on the end of steel fuel lines. Follow the setup for double flaring, but stop after the first part and you'll have a bulb. Smooth any rough edges with emery cloth or sandpaper. If you have never used a double flaring tool practice on some scrap line until you get it to do what you want. Once you're good there, go to a marine store and get some A1 rated Coast Guard approved fuel line. Cut off the sections you need making sure the "A1" writing on the hose is visible on the pieces you use. Regular worm gear hose clamps are legal, but use stainless, and personally I would double them up if I had the room.
            Full Gallop
            1998 Larson 176 Flyer
            VP 4.3GSLK
            VP PJX PowerJet

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            • #7
              Re: Is this fuel line going to be Coast Guard approved?

              You can see the other barb fitting on the fuel rail after the pressure regulator (on the other side). It does have the double barbs. On the steel line, I was just going to leave the fitting end, minus the fitting which I guess is single barb/ flared. I know it was a major %^&*& to get the rubber hose over it. I'll check into the A1 hose...

              Comment



              • #8
                Re: Is this fuel line going to be Coast Guard approved?

                Here is a quote from the article. "This system requires a return line to your fuel tank which many of the newer boats already have."

                Mercruiser nor Volvo Penta do this. Thay use a vapor tank which is intigrated into their fuel system.
                Of those who receive good advice, only the wise will profit from it.

                If you need it....Get it
                If you want it....Wait
                If you have it....Flaunt it


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                • #9
                  Re: Is this fuel line going to be Coast Guard approved?

                  On a related note, I was told by a dealer that they would not work on my boat because my fuel line, which I fabricated myself using A1 hose and good quality double-wide hose clamps, between my carbs (dual 1 bbl) and fuel pump was not USCG approved because it was not a metallic line. In looking at the above USCG link, it seems that A1 hose is approved for this application. Correct? I think this dealer was just trying to sell me a new metallic fuel line that would have set me back over $250 after installation.

                  Comment



                  • #10
                    Re: Is this fuel line going to be Coast Guard approved?

                    Show him the USCG information and maybe they will have a change of heart. Might be a policy the Dealer needs to modify...they should verify your compliance before assuming you are not.

                    Comment



                    • #11
                      Re: Is this fuel line going to be Coast Guard approved?

                      It is amazing how everything marine is 3 times as much for identical stuff (I'm just talking spark plugs, filters etc, not distributors, carbs, alternators, etc)


                      Originally posted by am_dew
                      On a related note, I was told by a dealer that they would not work on my boat because my fuel line, which I fabricated myself using A1 hose and good quality double-wide hose clamps, between my carbs (dual 1 bbl) and fuel pump was not USCG approved because it was not a metallic line. In looking at the above USCG link, it seems that A1 hose is approved for this application. Correct? I think this dealer was just trying to sell me a new metallic fuel line that would have set me back over $250 after installation.

                      Comment



                      • #12
                        Re: Is this fuel line going to be Coast Guard approved?

                        Anyhow, vapor tank aside, I'm going to assume it'll pass any USCG inspection as long as I use A1 rubber ends etc. I've been inspected by the Coast Guard Aux before, and they are just happy when they see my flame arrestor...they certainly never ripped out my floor boards to see what type of fuel line I have running to my "return to tank line" or if I had a vaporizer ('course I had a carb before not MPFI). This system utilizes a throttle body that looks pretty identical to a carb setup since it is covered by the flame arrestor. I am hooking an electronic remote fuel pressure gauge on the dash, so I can watch the fuel pressure. If the gauge starts to go squirrely, I know I have a leak...or something. This system does have all the proper safety features like the pump will turn off it the motor stalls etc. It is a GM Corvette ECU for heavens sake. Oh, and it's water proof too.

                        Comment



                        • #13
                          Re: Is this fuel line going to be Coast Guard approved?

                          There are different rules on the PRESSURE side of the pump as to the type of connection and how its made

                          If you read deeper into the REGS its not as simple as it seems


                          Tommays
                          If a dirty bottom slows you down what do think it does to your BOAT

                          1970 Cal 29 Sea Fever
                          http://cal29seafever.blogspot.com/
                          1981 J24 Tangent 2930
                          http://s565.photobucket.com/albums/s...%20for%20sale/
                          Tommays
                          Northport Ny

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                          • #14
                            Re: Is this fuel line going to be Coast Guard approved?

                            Never is when the Guvment's involved!

                            Comment



                            • #15
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                              Re: Is this fuel line going to be Coast Guard approved?

                              That's why I'm asking u guys. I have the metal lines the stainless clamps, don't know about fire testing...:$

                              Originally posted by tommays
                              There are different rules on the PRESSURE side of the pump as to the type of connection and how its made

                              If you read deeper into the REGS its not as simple as it seems


                              Tommays

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