Leaking Brakes - all new components

Discussion in 'Suspension, Steering, Brake & Wheel Topics' started by Lars_2Gen, Nov 11, 2019.

  1. dale68z

    dale68z Veteran Member

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    What do you have the banjo bolts torqued to? They need to be tighter than you think. Torque to 30, if it still leaks, torque to 35' pounds. Not sure what the grade a banjo is but I suspect grade 5.
     
  2. 70-camaro

    70-camaro Veteran Member

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    You may also need to reflare the rear lines.
     
  3. Lars_2Gen

    Lars_2Gen Veteran Member

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    I cranked on the banjos pretty good but didn't use a torque wrench. I'll torque them tomorrow

    For three rears I'm going to try the "Right Stuff" hose to match the hard lines. Maybe that will help.
     
  4. wasp

    wasp Member

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    Loosen the flared fittings and then tighten them again. This helps to create a good seal on new lines.You may need to do this several times. If this does not work try a conical seal. Just google search flare fitting washers. Summit racing sells them.
     
  5. Jeep43

    Jeep43 Veteran Member

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    Stainless hard lines?
     
  6. ol' grouch

    ol' grouch Veteran Member

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    You did remove the old copper washers and use brand new ones didn't you? Old ones will take a set and new lines may not seal on them.
     
  7. Lars_2Gen

    Lars_2Gen Veteran Member

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    Headlines are replacement, not stainless.

    Yes of course I used new copper washers... not my 1st rodeo.
     
  8. badazz81z28

    badazz81z28 Veteran Member

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    You really need to use a torque wrench (At least I do). The banjo bolt doesn’t really need to be any tighter than 15-25ftlbs. If they leak, you could have the improper copper washers that are not soft or there is a defect on the sealing surfaces. I have never had an issue with a banjo sealing. The flares however are particular. They need to be perfect and in many cases the flare is cracked or flared crooked. If you wrench in it really good and it still leaks, chances are even tighter isn’t going to seal. I now use NiCOP. It’s much more forgiving and seals the first time, every time.
     

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