old-tank Posted July 21, 2017 Share Posted July 21, 2017 Ethanol is going to kill me and it ain't because I drink too much. Last year I replaced all of the fuel lines on my 55 Century with SAE 30R14 (Barricade-type hose). Yesterday I noticed that the one between the frame and fuel pump was cracked and seeping when the 5 psi electric fuel pump at the tank was running. If the available fuel was less volatile I would be only using the mechanical fuel pump and that line would not be under pressure. When it cools off I need to replace all the lines on all of my cars, but with what? Link to comment Share on other sites More sharing options...
MrEarl Posted July 21, 2017 Share Posted July 21, 2017 Link to comment Share on other sites More sharing options...
old-tank Posted July 21, 2017 Author Share Posted July 21, 2017 26 minutes ago, MrEarl said: So what is it , how do you attach it, what is the barrier material under the outer cladding? Link to comment Share on other sites More sharing options...
MrEarl Posted July 21, 2017 Share Posted July 21, 2017 It's an internet picture, you get to figure out the rest ? Just suggesting a braided fuel line Willie, tha's all. ? 1 Link to comment Share on other sites More sharing options...
Daves1940Buick56S Posted July 21, 2017 Share Posted July 21, 2017 I have Gates 4219BF, which is the 225 psi version of the 30R14 spec. Had it 2 years, so far so good. About $8/foot, not cheap. Cheers, Dave Link to comment Share on other sites More sharing options...
SpecialEducation Posted July 21, 2017 Share Posted July 21, 2017 30R9 is supposed to be fine, too. True story: Gates once made a batch of vacuum hose, but labeled it as 200psi fuel hose. We say replace it every 7 years, but this stuff was cracking out & leaking after 2 or 3 with only gravity pressure 100LL behind it. Link to comment Share on other sites More sharing options...
Bhigdog Posted July 21, 2017 Share Posted July 21, 2017 3 hours ago, old-tank said: Ethanol is going to kill me and it ain't because I drink too much. Last year I replaced all of the fuel lines on my 55 Century with SAE 30R14 (Barricade-type hose). Yesterday I noticed that the one between the frame and fuel pump was cracked and seeping when the 5 psi electric fuel pump at the tank was running. If the available fuel was less volatile I would be only using the mechanical fuel pump and that line would not be under pressure. When it cools off I need to replace all the lines on all of my cars, but with what? Seeing as how gas/ ethanol is the default fuel, and has been for awhile, it seems to me any fresh fuel line from a parts store is compatible with it. My 57 uses a rubber line from the tank to the pump no problems in 15+ years............Bob 1 Link to comment Share on other sites More sharing options...
NTX5467 Posted July 22, 2017 Share Posted July 22, 2017 Since about 1992 when ReFormulatedGasoline was in use in some areas, the fuel line specs were updated THEN to work better with the new fuel. Or at least more resistant to it, than the prior hose rubber. Stainless Steel Braided Hose looks neat for show cars or in places it's needed, BUT it still has rubber hose internally and WILL LEAK just as any normal rubber hose might. Seems like NAPA has the newer-updated-spec fuel line hose? Kind of like the barrier a/c hose for R134a a/c systems? One way around this whole E10 situation might be some of the flexible plastic line, in a "steel" color, that could be joined/spliced as PVC pipe to make a durable fuel line for vintage vehicles, with a minimum of rubber in that complete fuel line? Use light heat to form it around corners and bends, possibly. A new cottage industry expansion for the repro fuel line vendors? It's good that you found that seep rather than chase a decrease in fuel economy, much less "fuel smell", Old-Tank! NTX5467 Link to comment Share on other sites More sharing options...
Beemon Posted July 22, 2017 Share Posted July 22, 2017 (edited) I've been using Gates 4219XL which has a maximum burst of 50psi; I've had zero issues with it. Edited July 22, 2017 by Beemon (see edit history) Link to comment Share on other sites More sharing options...
old-tank Posted July 22, 2017 Author Share Posted July 22, 2017 I checked the lines back at the tank where the fuel filter and electric fuel pump are located and they appear to be fine for now. The one at the mechanical pump is exposed to more heat and that made be contributing and I drive this car at least 7000 miles a year. Not that hard to change the line up front yearly! 1 Link to comment Share on other sites More sharing options...
buick man Posted July 23, 2017 Share Posted July 23, 2017 http://www.gates.com/products/automotive/fleet-and-heavy-duty/fleet-and-heavy-duty-fuel-system/barricade-carburetion-fuel-line-hose Link to comment Share on other sites More sharing options...
old-tank Posted July 23, 2017 Author Share Posted July 23, 2017 6 minutes ago, buick man said: http://www.gates.com/products/automotive/fleet-and-heavy-duty/fleet-and-heavy-duty-fuel-system/barricade-carburetion-fuel-line-hose Don't believe the propaganda...that is what I used. Link to comment Share on other sites More sharing options...
60FlatTop Posted July 27, 2017 Share Posted July 27, 2017 On 7/22/2017 at 5:30 PM, Beemon said: I've been using Gates 4219XL which has a maximum burst of 50ps That's not a realistic burst pressure. Double check it. Link to comment Share on other sites More sharing options...
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