Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

Brake ?

Discussion in 'The Garage' started by blazd88, Nov 30, 2006.

  1. blazd88

    blazd88 1/2 ton status

    Joined:
    Mar 16, 2004
    Posts:
    1,055
    Likes Received:
    0
    Location:
    Lubbock, Tx
    Ok so after finishing new suspension (B-52 kit pics soon to come). Drove it around and no back brakes. I did the disc swap awile back and it hasnt gone anywhere since. Bleed the hell out of them and the master cylinder is only pushing to the front brakes. Did some trash get in the MC during the swap and F up the MC. The rear of the MC (front brakes) is visually pumping. When the pedal is pushed fluid basicly squirts but nothing from the front. Cant even bleed the front(rear brakes) of the MC because it wont pressurize. So do I just get another MC?
     
  2. randy88k5

    randy88k5 1/2 ton status

    Joined:
    Nov 8, 2004
    Posts:
    1,248
    Likes Received:
    0
    Location:
    Lynchburg, VA, USA
    I would suggest yes, unless you can see another problem right away. My guess is you probably busted an o-ring on the piston.
     
  3. blazd88

    blazd88 1/2 ton status

    Joined:
    Mar 16, 2004
    Posts:
    1,055
    Likes Received:
    0
    Location:
    Lubbock, Tx
    I also just remembered that I have a 78 1 ton ,that I canabalized for the D60, which has hydro boost. The engine is a I-6 292 so not sure of the bracketry swapping over. Should I try going that direction or just buy a newer and larger MC.
     
  4. dremu

    dremu Officious Thread Derailer Premium Member

    Joined:
    Feb 27, 2000
    Posts:
    15,957
    Likes Received:
    448
    Location:
    East of San Francisco
    Pump should be comaptible; move the hoses and everthing over, sure.

    DON'T use the hydroboost master on your vacuum booster or vice versa, bad things will result. (Don't ask me how I know :doah: )

    -- A
     
  5. Leper

    Leper 1/2 ton status

    Joined:
    Feb 18, 2005
    Posts:
    4,437
    Likes Received:
    0
    Location:
    Dallas Baby!!!!
    Did you make your own hard lines for the rear? A itty bitty angle in a flare will cause air to be introduced into the line under pressure. I went through what you are going through about 8 months ago. three different size MCs, 3 proportioning valves, a couple of sets of calipers, a couple gallons of brake fluid, all new stainless lines. Bled the Mc on the bench, then all of the lines. no visable leaks. But, putting pressure on the brake pedal overnight, found just 1 drop of fluid at a connection. Not big enough to leak fluid out normally, but enough of a space to suck air in.

    Good Luck!
     
  6. makovai

    makovai 1/2 ton status

    Joined:
    Jun 6, 2006
    Posts:
    854
    Likes Received:
    0
    Location:
    oregon city
    if you saw my disc brake post, its basically the same issue, cept i dont have pressure in either resovoir. I did purchase a new m/c and it will all go toegther tommorow, and I'll know alot more. Kinda sounds like we have similar issues.
     

Share This Page