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brake fitting

Discussion in 'The Hokey Ass Message Board' started by 61 chevy, Apr 28, 2012.

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

    61 chevy

    hey guys, is teflon tape ok for break line fitting ?
  2. striper
    Joined: Mar 22, 2005
    Posts: 4,498


  3. R Pope
    Joined: Jan 23, 2006
    Posts: 3,309

    R Pope

    NEVER use any kind of dope on brake fittings. They are designed to seal without any help. If there's a leak, you have a damaged fitting that must be replaced.
  4. Engine man
    Joined: Jan 30, 2011
    Posts: 3,480

    Engine man
    from Wisconsin

    If you mean on a pipe thread, yes it is. The lines themselves seal with a double flair on the tube, not at the threads. Use a little antiseize on the brake line nut threads and slide the nut back and put a thin coating on the tubing so it doesn't seize to the nut.

    One caveat, if you use teflon tape, leave one thread showing on the fitting where it starts to thread in. Many people have tape hanging over the end and that piece is cut off when the fitting is screwed in. The loose piece of tape can get into places where it can cause problems. Many gas valves are labeled to not use teflon tape for that specific reason.

  5. brad chevy
    Joined: Nov 22, 2009
    Posts: 2,627

    brad chevy

    If the compression or flared fitting is leaking,repair or replace it. Never try to patch up brake lines or fittings. The answer you need is NO.
  6. The thread has nothing to do with sealing the joint.
    Teflon will not help , isn't recommend, and can cause you lots of trouble if you get some loose little shnitzles in the system.

    Short answer No
  7. nwbhotrod
    Joined: Oct 13, 2009
    Posts: 1,243

    from wash state

  8. 61 chevy
    Joined: Apr 11, 2007
    Posts: 891

    61 chevy

    thanks ,i had one that wount ouit leaking, :eek:
  9. Carnuba
    Joined: Mar 19, 2012
    Posts: 430


    If it's pipe thread, yes. Inverted flare, no. Sometimes I take a 3 way inverted flare "T" fitting and drill/tap one port for 1/8" pipe for a brake light switch. That switch is pipe thread and teflon tape is a must.
  10. i don't recommend the antiseize on any brake system part, too risky to contaminate the system with a petroleum based product.
  11. Dane
    Joined: May 6, 2010
    Posts: 1,351

    from Soquel, CA

    Try loosening and retightening several times. If that does'nt work take a look at the seating surface, there may be a groove worn in the part. If so replace it.
  12. chubbie
    Joined: Jan 14, 2009
    Posts: 2,318


    if you had the need to lubricte the threads, then yes use some on the treads. BUT if you think you would seal a leak.....:rolleyes:

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