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Air in Brakeline | Can I Bleed Brakes W/O Bleeder Screw?

Discussion in 'XJ Technical Chat' started by ste, May 9, 2018.

  1. ste

    ste New Member

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    Hello.

    There's air in the brake line of my 1982 Yamaha Xj 650 Maxim and the front brake is completely unresponsive. I can't bleed my brakes the traditional way because the bleeder screw is shut. I've tried penetrating oil, heat, vise grips – the screw will not get loosened at all.

    Is there some way to get the air out of my brake line without loosing the bleeder screw?

    Thank you!
     
    ste, May 9, 2018
    #1
  2. Jetfixer

    Jetfixer Well-Known Member

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    Nope you have to get it out you may need to drill it with a #21 drill bit and use a easy out . Or buy a used caliper off of eBay
     
    Jetfixer, May 9, 2018
    #2
  3. nablats

    nablats Member

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    have you got it REALLY hot - I have found sometimes I haven't given enough heat, keep trying persistence sometimes wins......
     
    nablats, May 10, 2018
    #3
  4. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    That the bleeder screw is stuck is an indication that the caliper needs to be rebuilt (along with the master cylinder and new brake lines).
    Do not apply heat to the caliper without tearing it down first.
     
    k-moe, May 10, 2018
    #4
  5. Jetfixer

    Jetfixer Well-Known Member

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    ^^^^^+1 kmoe rules !!! Heating up the caliper will end up melting the internal seal not good .
     
    Jetfixer, May 10, 2018
    #5
  6. XJ550H

    XJ550H Well-Known Member Premium Member

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    i had a socket for bleeder screws once it looked like a chrome lug nut you put a wrench on it to turn it and then hit the top with a hammer to break it free worked great
     
    XJ550H, May 10, 2018
    #6
  7. Simmy

    Simmy Well-Known Member

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    I think he was more concerned about building pressure in a closed system, Kaboom!
     
    Simmy, May 11, 2018
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