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how to straighten steel 3/8 fuel line coil #212684 02/03/09 09:39 AM 02/03/09 09:39 AM
Joined: Feb 2004 Posts: 1,167 ERIE PA home of the RENCH MOB mike_vango OP super stock
mike_vango OP super stock Joined: Feb 2004 Posts: 1,167 ERIE PA home of the RENCH MOB	i have a 25 ft coil of steel fuel line. how is the best way to straighten it (without special tools) before i bend it up to fit the car. i will be running it from the tank to the pump. thanks

Re: how to straighten steel 3/8 fuel line coil [Re: mike_vango] #212685 02/03/09 10:00 AM 02/03/09 10:00 AM
Joined: Nov 2008 Posts: 1,565 tennessee P pushbutton pro stock
pushbutton pro stock P Joined: Nov 2008 Posts: 1,565 tennessee	I have seen rolls of soft copper straighted by stretching. Unroll,clamp to tree or something unmoveable and pull with a come a long or vechicle. Will work on soft copper,don't know about steel.

Re: how to straighten steel 3/8 fuel line coil [Re: mike_vango] #212686 02/03/09 10:03 AM 02/03/09 10:03 AM
Joined: Oct 2006 Posts: 149 Cleveland Ohio Discoquik member
Discoquik member Joined: Oct 2006 Posts: 149 Cleveland Ohio	Roll it out flat against the floor. It can be very straight after doing so. I use a 2x6 board to keep it from having any "bumps" from any cracks in the concrete. Basically roll it out like a carpet with light pressure forcing down on the roll while someone holds the other end. Very easy! Last edited by Discoquik; 02/03/09 10:06 AM.

Re: how to straighten steel 3/8 fuel line coil [Re: Discoquik] #212687 02/03/09 10:07 AM 02/03/09 10:07 AM
Joined: Feb 2004 Posts: 1,167 ERIE PA home of the RENCH MOB mike_vango OP super stock
mike_vango OP super stock Joined: Feb 2004 Posts: 1,167 ERIE PA home of the RENCH MOB	Quote: Roll it out flat against the floor. It can be very straight after doing so. I use a 2x6 board to keep it from having any "bumps" from any cracks in the comcrete. Basically roll it out like a carpet with light pressure forcing down on the roll. Very easy! roll it out like a carpet! thats my specialty. i'm just so afraid of kinking it.

Re: how to straighten steel 3/8 fuel line coil [Re: pushbutton] #212688 02/03/09 10:21 AM 02/03/09 10:21 AM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	Quote: I have seen rolls of soft copper straighted by stretching. Unroll,clamp to tree or something unmoveable and pull with a come a long or vechicle. Will work on soft copper,don't know about steel. That's gonna change the diameter of the tubing, very bad idea and advise. Roll it out on the floor and you will be fine. I have bought and installed 100s of rolls of copper tubing in my time, as I'm in the propane business.

Re: how to straighten steel 3/8 fuel line coil [Re: Challenger 1] #212689 02/03/09 12:26 PM 02/03/09 12:26 PM
A Anonymous Unregistered
Anonymous Unregistered A	roll out on the floor and if possible use a corner to keep it straight. Do NOT move bend or stretch any more than you absolutely must because you will work harden the piece. I used to work in refrigeration, one day I wasplaying with a scrap ofcopper tube. Two or three bends back and forth was all it took--couldn't really bend it after. If you do so, you will then have to use heat to anneal it. if it is "tinned" this can be very tricky

Re: how to straighten steel 3/8 fuel line coil [Re: Challenger 1] #212690 02/03/09 01:04 PM 02/03/09 01:04 PM
Joined: Nov 2008 Posts: 1,565 tennessee P pushbutton pro stock
pushbutton pro stock P Joined: Nov 2008 Posts: 1,565 tennessee	Quote: Quote: I have seen rolls of soft copper straighted by stretching. Unroll,clamp to tree or something unmoveable and pull with a come a long or vechicle. Will work on soft copper,don't know about steel. That's gonna change the diameter of the tubing, very bad idea and advise. Roll it out on the floor and you will be fine. I have bought and installed 100s of rolls of copper tubing in my time, as I'm in the propane business. you don't have to pull copper hard enough to change the size. I said i didn't know about steel. You will have to use tubing benders after. I've unrolled a few rolls of soft copper in my time,never saw any come out straight enough that I would want to use on a car of mine.

Re: how to straighten steel 3/8 fuel line coil [Re: pushbutton] #212691 02/03/09 01:57 PM 02/03/09 01:57 PM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	Quote: you don't have to pull copper hard enough to change the size. I said i didn't know about steel. You will have to use tubing benders after. I've unrolled a few rolls of soft copper in my time,never saw any come out straight enough that I would want to use on a car of mine. The OP was asking about steel tubing, I don't know how we got onto copper. I would never use copper anywhere on any of my cars, same with aluminum tubing. It don't belong on a street car.

Re: how to straighten steel 3/8 fuel line coil [Re: Challenger 1] #212692 02/03/09 06:58 PM 02/03/09 06:58 PM
Joined: Nov 2008 Posts: 1,565 tennessee P pushbutton pro stock
pushbutton pro stock P Joined: Nov 2008 Posts: 1,565 tennessee	Quote: Quote: you don't have to pull copper hard enough to change the size. I said i didn't know about steel. You will have to use tubing benders after. I've unrolled a few rolls of soft copper in my time,never saw any come out straight enough that I would want to use on a car of mine. The OP was asking about steel tubing, I don't know how we got onto copper. I would never use copper anywhere on any of my cars, same with aluminum tubing. It don't belong on a street car. I agree i wouldn' use copper either,Iwas just telling him the stretching process might work on steel tubing,but didn't know that it would.I realized he wasn't going to use copper on his car. Sorry if I confused anybody.

Re: how to straighten steel 3/8 fuel line coil [Re: pushbutton] #212693 02/03/09 08:37 PM 02/03/09 08:37 PM
A Anonymous Unregistered
Anonymous Unregistered A	Quote: Quote: Quote: you don't have to pull copper hard enough to change the size. I said i didn't know about steel. You will have to use tubing benders after. I've unrolled a few rolls of soft copper in my time,never saw any come out straight enough that I would want to use on a car of mine. The OP was asking about steel tubing, I don't know how we got onto copper. I would never use copper anywhere on any of my cars, same with aluminum tubing. It don't belong on a street car. I agree i wouldn' use copper either,Iwas just telling him the stretching process might work on steel tubing,but didn't know that it would.I realized he wasn't going to use copper on his car. Sorry if I confused anybody. It matters not whether you're speaking of copper, steel, or what. You work it the same way. You do NOT stretch it.

Re: how to straighten steel 3/8 fuel line coil [Re: mike_vango] #212694 02/04/09 10:36 AM 02/04/09 10:36 AM
Joined: Jan 2003 Posts: 14,610 Not2farfromNashville, TN R Rug_Trucker I Live Here
Rug_Trucker I Live Here R Joined: Jan 2003 Posts: 14,610 Not2farfromNashville, TN	Quote: Quote: Roll it out flat against the floor. It can be very straight after doing so. I use a 2x6 board to keep it from having any "bumps" from any cracks in the comcrete. Basically roll it out like a carpet with light pressure forcing down on the roll. Very easy! roll it out like a carpet! thats my specialty. i'm just so afraid of kinking it. Mine too....... Set up a "dead man" get out your Crain pole stretcher and use the tubing stretcher attachment. Stretch until you get a slight bow in the poles.......... "The only thing to do for triumph of evil is for good men to do nothing" "NUNQUAM NON PARATUS!"

Re: how to straighten steel 3/8 fuel line coil [Re: Challenger 1] #212695 02/04/09 12:34 PM 02/04/09 12:34 PM
Joined: Feb 2003 Posts: 21,318 Manitoba, Canada DaytonaTurbo Too Many Posts
DaytonaTurbo Too Many Posts Joined: Feb 2003 Posts: 21,318 Manitoba, Canada	Quote: I would never use copper anywhere on any of my cars, same with aluminum tubing. It don't belong on a street car. Why do you say that? What's wrong with aluminum tubing, it's a lot easier to work with...

Re: how to straighten steel 3/8 fuel line coil [Re: DaytonaTurbo] #212696 02/05/09 07:59 AM 02/05/09 07:59 AM
Joined: Jan 2003 Posts: 1,756 London, England Gavin top fuel
Gavin top fuel Joined: Jan 2003 Posts: 1,756 London, England	Im my limited experience (aluminium and copper/nickel) you won't get a straight length by unrolling it flat - there is always a bit of 'memory' that will give you a slight bow to it. I found I had to actually bend it the other way very slightly to get it straight. And once you get into that a) it gets difficult to stop it from turning onto its side, and b) unless you have a former with a gentle curve it's tough to get a perfect result. I got close enough (and I'm very fussy), but not 100% perfect

Re: how to straighten steel 3/8 fuel line coil [Re: Gavin] #212697 02/05/09 10:26 AM 02/05/09 10:26 AM
Joined: Aug 2006 Posts: 213 fresno H hyefatman enthusiast
hyefatman enthusiast H Joined: Aug 2006 Posts: 213 fresno	steel fuel line- could not do it - so i cleaned up my old one--- no matter what i did it just didnt look right --- had bumps and humps and looked line crap used a tube bender no help ---

Re: how to straighten steel 3/8 fuel line coil #212698 02/05/09 11:54 AM 02/05/09 11:54 AM
Joined: Mar 2006 Posts: 9,835 MI, usa dvw master
dvw master Joined: Mar 2006 Posts: 9,835 MI, usa	I've run aluminum line on my street car for over 20 years. Just upgraded to 1/2" aluminum. It should be supported every 20" with proper sleeve fittings on the ends. I just read about a tubing straighten tool recently but can't remember where. I usualy over bend it when coming off the roll, go in small increments and you can get it pretty straight. Doug

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