Fuel Line(s) Leak

After 44 years of service it was bound to happen. I have developed a fuel leak in one or more of the fuel/return lines in my 1975 Hatteras M/Y. Looked for the leak but couldn't find unless I rip up the floor which I don't want to do. I'm thinking of replacing all supply and return lines with rubber hoses made for diesel. Has any of you had a similar problem and how you solved it?

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Originally Posted by CapetaniosG

After 44 years of service it was bound to happen. I have developed a fuel leak in one or more of the fuel/return lines in my 1975 Hatteras M/Y. Looked for the leak but couldn't find unless I rip up the floor which I don't want to do. I'm thinking of replacing all supply and return lines with rubber hoses made for diesel. Has any of you had a similar problem and how you solved it?

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Not exactly in that I have noted hard and inflexible fuel lines. That’s the precursor to failure. You’ll want to get A1-15 hose for anything around a hot engine. You could use B rated after that, but I stick with the fire rated hose all the way. While some use push-on fittings, I’d suggest taking the old hoses to a hose shop and having new ones made up with OEM ends. If your’s is a charter boat, use the OEM for sure. Don’t forget long loops and chafe protection.

Mine have all been changed out to rubber and I agree with Roberts suggestions.