Register now to get rid of these ads!

copper fuel lines

Discussion in 'The Hokey Ass Message Board' started by 61 chevy, Aug 18, 2013.

  1. 61 chevy
    Joined: Apr 11, 2007
    Posts: 891

    61 chevy
    Member

    is it OK to run copper fuel lines, I have been told NO ?????:eek:
     
  2. Solid Copper, NO.
     
  3. Ralph
    Joined: Jan 8, 2004
    Posts: 295

    Ralph
    Member

    Copper work hardens from vibration, then snaps. So, no. Buy steel brake line in 5/16" and use that. Decent parts houses will stock it.
    Ralph
     
  4. Drive Em
    Joined: Aug 25, 2006
    Posts: 1,748

    Drive Em
    Member

    Yes it can be used as fuel line, has been used as fuel line for decades and will continue to be used as fuel line. Any kind of metal work hardens. Just make sure the line is properly supported.
     

  5. JohnEvans
    Joined: Apr 13, 2008
    Posts: 4,883

    JohnEvans
    Member
    from Phoenix AZ

    It was used for years with no problems BUT it needs to be installed and mounted in such a way it can not viabrate and move. I had a 51 Seagrave fire truck that fuel and Brake lines were copper still just fine after 50+ years. That tubing however was much heavier wall than what you get at Ace H/W. Botton line use steel unless YOU know what you are doing. Under hood fuel leaks can be exciting!!
     
  6. 61 chevy
    Joined: Apr 11, 2007
    Posts: 891

    61 chevy
    Member

    what if I drilled a hole in it HA,HA:rolleyes:
     
  7. mustang6147
    Joined: Feb 26, 2010
    Posts: 1,847

    mustang6147
    Member
    from Kent, Ohio


    ^^^^........ perfectly fine....


    I bought a car used, and some goof ran the line from front to back with copper, and painted it black..... I drove it for a few years and then when I did new brakes, disc front ect, I found this.... I was upset, but it worked.... It is not fine for brakes, but gas, is fine.
     
  8. LOW LID DUDE
    Joined: Aug 16, 2007
    Posts: 1,222

    LOW LID DUDE
    Member
    from Colorado

    I was wondering if copper would absorb heat under the car faster causing vapor lock.Just a thought.I know it heats up faster than steel when you torch it.
     
  9. handmedown40limited
    Joined: Mar 28, 2011
    Posts: 204

    handmedown40limited
    Member
    from tracy ca

    my great grandfather plumbed his 1940 Buick with copper fuel lines. Then polished it. Is well supported and rubber was used from chassis to pump. Looks pretty cool. I will reuse/redo it like he had when I get to that point
     
  10. slddnmatt
    Joined: Mar 30, 2006
    Posts: 3,682

    slddnmatt
    Member

    copper and brass on an engine makes it look like a distillerly! Works just fine.
     
  11. I ran copper fuel line on a strip down with a Flathead back in the late 60's,,we were fling down the road and the fuel line cracked,,,burnt the car to the ground!.

    Go ahead and use it,,,I have already learned my lesson.:rolleyes: HRP
     
  12. stimpy
    Joined: Apr 16, 2006
    Posts: 3,547

    stimpy

    copper is for household plumbing, steel is for fuel and brakes untill I see a house moving down the street and stop on its own, I will use steel in my automotive plumbing .
     
  13. slddnmatt
    Joined: Mar 30, 2006
    Posts: 3,682

    slddnmatt
    Member

    early Rolls Royce for a pic for ya
     

    Attached Files:

  14. CNC-Dude
    Joined: Nov 23, 2007
    Posts: 975

    CNC-Dude
    Member

    The chrome Holley dual lines have been copper since the beginning of time and the standard for hot rods and racers using 4 bbls and have never been a problem.
     
  15. metalman
    Joined: Dec 30, 2006
    Posts: 3,286

    metalman
    Member

    I think they are chrome plated brass.
     
  16. 2racer
    Joined: Sep 1, 2011
    Posts: 960

    2racer
    Member


    house moving down the street

    GroveHouse1.jpg
     
  17. CNC-Dude
    Joined: Nov 23, 2007
    Posts: 975

    CNC-Dude
    Member

    The line portion of them is chrome plated copper.
     
  18. My '40 Coupe had copper lines to rubber and I never had a problem. It ran a full race Flathead Merc. Quick and easy way to prevent vapor lock on the copper lines is to clip a wooden clothes line to it.. Disapates heat... Old Hot Rod trick.
     
  19. stimpy
    Joined: Apr 16, 2006
    Posts: 3,547

    stimpy

    they have a copper coating for the chrome to adhear too . they are steel
     
  20. stimpy
    Joined: Apr 16, 2006
    Posts: 3,547

    stimpy

    read it again . not skim it I said on its own ... not on a truck .. and as old as it is , I dubt it had copper plumbing more than likely lead or galv pipe , thats if it had running water init .
     
  21. pmangelos
    Joined: Dec 7, 2008
    Posts: 12

    pmangelos
    Member
    from Modesto

    Take a look at Cunifer, copper alloy that is made for automotive use.
     
  22. AlbuqF-1
    Joined: Mar 2, 2006
    Posts: 909

    AlbuqF-1
    Member
    from NM

    Any OEM fuel lines that look like copper are almost certainly Cunifer or similar.
     
  23. 2racer
    Joined: Sep 1, 2011
    Posts: 960

    2racer
    Member

    redneck-rv.jpg
     
  24. slddnmatt
    Joined: Mar 30, 2006
    Posts: 3,682

    slddnmatt
    Member

  25. Diavolo
    Joined: Apr 1, 2009
    Posts: 820

    Diavolo
    Member

    two points to consider before you take a beautiful Rolls Royce and decide it's ok to run home improvement grade copper lines.

    1. Short, straight runs.
    2. Soldered to Brass fittings and rigidly mounted all over the place. That Copper has absolutely no chance of wiggling.

    I have Cunifer and it's tinted a copper color-ish. Not copper.Just not silvery colored either.
     
  26. slddnmatt
    Joined: Mar 30, 2006
    Posts: 3,682

    slddnmatt
    Member

    Compression fittings work fine for connections.. I've seen broken steel lines and broken copper. It's durability is on how it's all plumbed. That was just the first car that I knew that would have some non-ferrous bling on it..
     
  27. rosco gordy
    Joined: Jun 8, 2010
    Posts: 648

    rosco gordy
    Member

    They use copper on jet planes so why not
     
  28. push_rod
    Joined: Jul 22, 2013
    Posts: 110

    push_rod
    Member

    Copper plated steel tubing is okay for fuel lines, but not copper tubing.
    Years ago I almost did a stock restoration on my 1940 Ford Coupe.
    I bought a roll of the stock replacement fuel line; it was steel that was copper plated. I wanted to use a larger diameter tubing, so I wound up using plated steel line with double flared fittings. I originally ran about a 36 inch length of copper tubing from the steel tubing at the frame rail to the firewall (Because the copper was easier to bend.), then rubber fuel hose to the carburetor. The first time I had my car NSRA safety inspected, they failed me! I was told that copper tubing is made with a seam that runs along it's length, and that it would eventually crack alongside that seam! I took the time to replace that length with the plated steel line.
     
  29. bct
    Joined: Apr 4, 2005
    Posts: 3,103

    bct
    Member

    whats a cunifer?
     
  30. fortynut
    Joined: Jul 16, 2008
    Posts: 1,038

    fortynut
    Member

    With gasoline now a mixture of petroleum distillates, alcohol, and other chemicals, more than word of mouth research should be done as to what effect it has on copper. Add the already mentioned problems copper lines are subject to from mechanical forces, and I figure copper lines are for plumbing houses. Personally, I'm looking at stainless steel, with the appropriate fittings and clamps. The way I see it, we build our rides like airplanes, with attention to detail, and with apologies to the biker jingle from yesteryear, should use the best and screw the rest. And, boys and girls, before you utter a word, until they bring back traditional gasoline, from the era specific to my build, I'll use what works best in this one. Nuff said.
     

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.