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Help on custom fuel lines

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Old 05-16-2006, 08:10 AM
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Default Help on custom fuel lines

I'm in tubing hell... Trying to put an electric fuel pump on my engine, need a hard line from the pump to the carb. Bought the double flaring tool, bender, bender springs, thought this would be a piece of cake... NOT! I'm been trying to use 3/8" steel brake line from an auto store. Gone through quite a bit of tubing at this point. Got the bending down to a science, but the flaring! Double flare just seems out of the question, spent 3hrs last night, cutting, reaming, filing, polishing, but the bubble just won't form. Questions for anyone that may know: is 3/8 steel brake line a reasonable starting point? Is there something else I could use that would flare easier? The carb connection is a 45deg double flare. On the pump, I could stick with that, or use a 37deg single flare. The stock lines on my engine had 37deg single flares with stainless tubing. Any one know if 37deg single flare is ok with steel line? Any help advise appreciated!
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Dave T.
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Old 05-16-2006, 10:12 AM
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Default Re: Help on custom fuel lines

Im not sure how long your line needs to be, but most auto parts stores carry the line already flared with the nuts on them in different lengths. Then all you would need to do is bend it to fit your application. I know we can get them locally here in just about any diameter you can think of, and lengths up to about 6 feet. Might give that a shot.
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Old 05-16-2006, 10:27 AM
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Default Re: Help on custom fuel lines

why use a metal non stainless line? i used high quality rubber fuel line with the press on ends, works like a charm, no hassles, last for ever, and you can get it at any good hose suppy house.
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Old 05-16-2006, 10:43 AM
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Default Re: Help on custom fuel lines

Quote:
Originally Posted by ratman
why use a metal non stainless line? i used high quality rubber fuel line with the press on ends, works like a charm, no hassles, last for ever, and you can get it at any good hose suppy house.
Ever see this blue stuff Phil? Was thinking of swapping out for the normal black rubber hose look.
http://cgi.ebay.com/ebaymotors/ws/eB...RK%3AMEWA%3AIT

http://cgi.ebay.com/ebaymotors/ws/eB...MEWA%3AIT&rd=1
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Old 05-16-2006, 10:50 AM
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Default Re: Help on custom fuel lines

Might be easier to just go to Aeroquip braided stainless lines.
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Old 05-16-2006, 11:49 AM
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Default Re: Help on custom fuel lines

Quote:
Ever see this blue stuff Phil?
thats what im running, from the tanks to the fuel pumps and the black hose from the pumps to the carbs, go with the black cuz it will never look dirty! its easy to use and some people sell the brass push on fittings that have been chromed to keep it clean looking, the few brass fittings i used have already tarnished.
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Old 05-16-2006, 12:55 PM
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Default Re: Help on custom fuel lines

the flaring can be tricky...the trick to it is getting the spacing of the die correct before you make your initial flare....the second flare is very easy as long as you make sure that your press tool is centered perfectly....hope that helps you a little
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Old 05-16-2006, 05:50 PM
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Default Re: Help on custom fuel lines

Stainless Steel Parker A-lok And Cpi Tube Fittings

Last edited by Comanche3Six; 08-29-2007 at 11:41 AM.
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Old 05-16-2006, 06:54 PM
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Default Re: Help on custom fuel lines

comanche 6 those are hard 90* angles and wont help the flow at all
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Old 05-16-2006, 08:42 PM
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Default Re: Help on custom fuel lines

Quote:
Originally Posted by ratman
comanche 6 those are hard 90* angles and wont help the flow at all
Dammit, you caught me! Now I gotta go downstairs and find one I made and photograph it. You know the inside of that drilled 90 creates air bubbles in fuel. Be back with a pic!
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