Brake booster replacement

Discussion in 'The whoa and the sway.' started by Sturmgewehr, Jan 28, 2008.

  1. Sturmgewehr

    Sturmgewehr Well-Known Member

    If I replace my old 11" booster with a new 11" booster,can I just unbolt the
    MC without draining and having to rebleed my brakes? Thanks Pete
     
  2. 73riv455

    73riv455 73riv455

    I have done that. Saves having to bleed 'em.
     
  3. GotTattooz

    GotTattooz Well-Known Member

    Yes, you just unbolt the master from the from of the booster and bend it down and out of the way enough to swap the boosters out, then bent back into place and tighten it back down. Don't forget about the rod that sits in the booster. It's very important. If you forget to install it, you won't have any brakes.

    -Josh
     
  4. Sturmgewehr

    Sturmgewehr Well-Known Member

    Guys, thanks for the responses,exactly what I needed to know. Pete
     
  5. BadBrad

    BadBrad Got 4-speed?

    Not sure that Sturmgewehr is on here anymore but, have any of you guys swapped out your brake booster and left the hydraulic system closed like he was trying to accomplish? I'd prefer to keep that all buttoned up.
     
  6. CJay

    CJay Supercar owner Staff Member

    You know, its not a bad idea to flush out the old brake fluid and bleed the system every few years.
     
  7. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    Yes, you can do it without removing the brake lines from the MC...but Jason is right...how long has it really been since the system has been flushed?
     
  8. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member


    Sure, I've done it many times. I even swapped my 8.5 rear in that way. Pulled the axles, hung the backing plates up, and dropped the rest of the rear. Put the new rear up, popped the backing plates on, and installed the axles. No messing with brake lines, or parking brake cables. Nice easy swap. There is plenty of room to swap the booster, it's no problem at all. BadBrad can do it easily:grin:
     
  9. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    You don't need to disconnect the lines for that.
     
  10. CJay

    CJay Supercar owner Staff Member

    True, but if your going to change the brake fluid and flush the system, you can go ahead and get the master out of the way by removing it. Its a bit of a PITA to have it in place.
     
  11. BadBrad

    BadBrad Got 4-speed?

    True true true - did it just last year; I seem to go through a MC every 5 to 7 years. Anyway, did it last year when the MC was puking out the back end and into that rubber seal between the booster and the MC. I'm now thinking that just changing that seal might solve the trouble. It might have been compromised by the brake fluid; started leaking air about five months later. Too much coincidence there to not check it out.

    It all acts pretty weird. Can hear the booster leaking air until I put pressure on the pedal. I pinched off the vacuum line and found no change in engine speed so I think the seal from manifold to booster is still good. Braking performance remains perfect.

    Thanks for the advice guys.
     
  12. gstewart

    gstewart Well-Known Member

    i all can say is do not over bend and kink the brake lines. do not forget to detach the brake pedal first.
    the brake booster is not the easiest unit to remove. u need a short boxend wrench which i happened to have to remove the engine side nuts. reattaching the brake lines clamp to the booster is a real pain in the a$$.
    i replace the m/c & the booster in my gs 10 days ago.
     

Share This Page