how to splice or repair a braided fuel line?

Question

just bought a truck, and someone has cut the braided fuel line and put a coupler inline. This has reduced the inside diameter. How can I splice this line on the outside diameter so electric fuel pump doesn't burn up. Im wondering if there is a kit or a way to do this.

Answer 1

Change in diameter is very unlikely to be noticeable. The fuel pump isn't going to burn up from it.



Only one real option, find another rig with the same hose and buy it. Probably not available anymore. Note to all: don't cut factory fuel lines.



Edit: "?", I am almost positive the GM flexible fuel lines (and probably all other OEM ones) are "lined" with something along the lines of Teflon. Aftermarket braided lines IMO are mostly going to be junk, factory lines, *if* lined with PTFE or similar impermeable stuff, will be fine.



FWIW, every GM fuel injected vehicle made from at least 1985-1992 had flexible braided fuel line (4 total, two at tank, two at motor), if ethanol killed it, there would be so many GM car fires you couldn't count them. The old hoses from the fuel pumps are *commonly* bursting now (even in 13PSI applications) due to the ethanol, but the flexible steel lines, on the same vehicles, are not having the same issues. It IS possible the braided line is preventing the hoses from actually rupturing, but you would expect at least some anecdotes of weeping fuel lines on these vehicles, and I've yet to hear of any. I reused 1980's braided lines on my fuel injection retrofit when I did it 10 years ago, and in those 10 years of use, I haven't had any issues. My single experience doesn't amount to a hill of beans, just the experience I can speak to. oops, except another truck that was converted to EFI a couple of years back with stock 1980's braided lines, and those are holding up as well.

Answer 2

Easy. You can't. The change in internal diameter from the present coupler is not going to be a problem, so if it's fuel-tight and not causing any problems leave it alone. If you want to get rid of the coupler for aesthetic reasons then you'll have to replace that entire section of braided fuel hose.



Personally, I avoid using braided fuel hoses; they make it impossible to check for the cracks in a perished line which are now fairly common with modern fuels, even though the hoses claim to be suitable for unleaded fuel with ethanol content. If you replace the hose I strongly advise using unbraided: it may be uglier but it's definitely safer for regular road-going car usage.

Answer 3

maybe you can cut the line and use some fuel injection hose and 2 small screw hose clamps ! if the hose is rubber then cut the hose and use a piece of metal tubing and 2 small screw clamps !

Answer 4

"someone" as in idiot cut the line. you need to replace it period......