mushy brakes

[dutch]

My stock cobra brakes were a bit mushy to begin with, so I rebuild the calipers with new seals etc, cleaned everything, put some new motorcraft pads in, sanded and cleaned the rotor (still plenty life left), put some new 99+ brakelines on (after reading they're almost as good as stainless ones compared to our stock lines). Bled the system... bedded everything in..

I still have a mushy pedal feel. The brakes bite better now, but the pedal travel untill they really start slowing me down still feels too sloppy.

Is this normal? should I bleed them again, or is there air in the master cylinder? If so, what has to be done?

 

[joekd]

Did you just bleed them or full fluid exchange? My gues is you are still running the old OEM brake fluid and it's causing the problem

 

[Javi]

Check the MC.

Also did you bleed all 4 corners?

 

[dutch]

No just the fronts. About half a quart of new brakefluid went in.. can you bleed our MC's?

 

[2slo95fiveoh]

you bleed M/c by loosening up the lines that go to it with the pedal depressed... However I would start with bleeding the rears, then the fronts again.
In the order: RR, LR, RF, LF. If after several attempts at each wheel and the pedal is still mushy, I would suspect a M/c problem.

 

[joekd]

Take the extra time and do a complete brake fluid exchange. Just suck out as much old fluid from the MC as possible, fill with fresh fluid then starting at farthest corner bleed brakes until the new fluid comes out, repeat with each corner until done.

note - make sure you keep checking the MC so it doesn't run dry and suck in air

 

[Javi]

Dutch, you must bleed all 4 corners after removing the hoses on the front brakes.

I don't bleed all 4 corners when I remove the rears and never had a problem with any of my cars.

 

[dutch]

got a buddy helping me tomorrow, we'll try the MC bleeding first, then go over all 4 corners again..

 

[Goindeafonmtx]

Try bench bleeding the M/C. Also, like others have said, you should bleed the entire brake system.

 

[2slo95fiveoh]

bench bleeding the M/c should only be necessary if it is new, or ran dry. I am thinking his problem resides in air in the rear portion of the brakes.

 

[dutch]

It was air in the MC, did all four corner too but no air came out. Feels great now, thanks!

 

[330CubeGt]

O yea, Brake bleeding 101. Atleast you got it fixed a mushy pedal sucks... Unless you drive a chevy thats how most of them are.

 

[dutch]

LOL