Just joined? Please introduce yourself.
Classic Edge Designs, LLC Prime Custom Cars, LLC MadMooks
Results 1 to 6 of 6

Thread: Brake stumper

  1. #1
    Registered Member
    Join Date
    Apr 2018

    Member #:3780
    Posts
    3

    Question Brake stumper

    Ok I am Stumped. I have a disc/drum set up. I have been trying to bleed the system, after putting new calibers on the front. When I pump the pedal I have no air. Then hit the brake after bleeding I have no pedal, but it will pump up. Let off the pedal, wait a few seconds and hit it again and goes to the floor. pump the pedal and it will pump up again. It will not have a pedal unless you pump it up. I am lost I have never had a brake system do this----HELP

  2. #2
    Registered Member chevynut's Avatar
    Join Date
    Nov 2011

    Member #:115
    Location
    Fort Collins, CO
    Posts
    9,397
    Welcome to the site. Did the brakes work correctly before you installed the new calipers? Was it drum brakes before the new calipers? What else did you change in the system?
    56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension

    You can see my 56 Nomad build here http://www.picturetrail.com/chevynut

    For affordable C4 Corvette Suspension conversions for your car, visit http://www.classicedgedesigns.com

    Other vehicles:

    56 Chevy 2-door BelAir sedan
    56 Chevy 210 4-door sedan
    57 Chevy 210 4-door sedan
    1961 Willys CJ3B Jeep
    2001 Porsche Boxster S
    2003 Chevy Silverado 2500 HD Duramax

  3. #3
    Registered Member
    Join Date
    Apr 2012

    Member #:571
    Posts
    3,573
    Check to see if the pushrod between the pedal and master cylinder (or booster) has preload. If it does, adjust until the pin goes in without moving the pushrod fore and aft. If you have a booster, check to see if the pushrod between the booster and master cylinder has preload. It should have 1/64" - 1/32" clearance. Either one prevents the master cylinder from getting new fluid from its reservoir. When that happens, you don't expel any air/fluid when you open the bleeder, and the result is the symptom you have.

  4. #4
    Registered Member
    Join Date
    Apr 2018

    Member #:3780
    Posts
    3
    It had disc on it before, the system is the same except for the calibers and the braided hoses

  5. #5
    Registered Member
    Join Date
    Apr 2018

    Member #:3780
    Posts
    3
    Thanks I will check that

  6. #6
    Moderator NickP's Avatar
    Join Date
    Mar 2012

    Member #:1653
    Location
    De Queen, AR
    Posts
    3,945
    Quote Originally Posted by Randells57 View Post
    Thanks I will check that
    Bleeders are up top, right?

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •