Fuel line replacement options, thread and fitting sizes and types

[Nivekt]

I would like to replace all three of my fuel lines pictured. They are old and ugly and the black rubber one coming from the tank is leaking slightly. I would like to replace them all with steel braided lines but I dont know where to start. Are the sizes of the fittings standard? If so, what are they? What am I working with here? As best I could work out, I would need two lines at roughly 12-14" in length and a third at about 24-28" in length. I have an Edelbrock 1409 carburetor as well.

Also, How can I plug the line where the black rubber hose line comes out at? I need to pull this fuel line off but dont know what thread size/type to buy a plug for. Also, is there an option for a fuel shut off valve that is integrated into a steel braided line? Ideally, I would like to replace the black rubber hose with a steel braided one that has an integrated shut off valve.

Sorry for all the questions, this is all new stuff for me.

 

[Howard Sterndrive]

Re: Fuel line replacement options, thread and fitting sizes and types

I used this from fuel pump to carb on mine:
SIERRA 18-8114 BRAIDED FUEL LINE USCG
SAE J1527 Type A1

 

[Nivekt]

Re: Fuel line replacement options, thread and fitting sizes and types

Thanks Howard. That helps me with one piece of the puzzle. I have been doing a little more research and it looks like as long as I get A1 USCG approved line I can use whatever I want. I dont think I've seen basic steel braided line that I would cut myself and use AN fittings meet the A1 rating. Can you confirm this?

 

[Howard Sterndrive]

Re: Fuel line replacement options, thread and fitting sizes and types

I'm not too familiar with USCG regs because I'm not in the US, but one of my i/o boats just has 3/8" copper line from the bow tank right to the bilge compartment. That has served well since 1967.
My Bayliner has flex line from the tank.

Maybe a thread in general section about i/o USCG regs (not OMC specific) would get some more answers. - could link it to this thread.

 

[Bondo]

Re: Fuel line replacement options, thread and fitting sizes and types

Thanks Howard. That helps me with one piece of the puzzle. I have been doing a little more research and it looks like as long as I get A1 USCG approved line I can use whatever I want. I dont think I've seen basic steel braided line that I would cut myself and use AN fittings meet the A1 rating. Can you confirm this?

Ayuh,... That's Correct...