Thought I gott'er done....(front brakes)

[cascarufio]

Hey Fellas,

I just got done changing out the front brake pads on my '86 Bronco. I bled the lines, and refilled the Master Cylinder. There was real good pressure on the brake when the engine was off, but when I started the engine, I could press the brake pedal to the floor pretty easily. I backed up in the driveway, and pressed the brakes, and it stopped, but the pedal was reeeaaal soft, going almost all the way to the floor.

Any ideas?

Thanks in advance guys........!

Dan

 

[murph]

I just replaced the calipers, rotors and pads in my 91. It seems a little mushy too. Did you use the same bearings or did you get new ones? Mine seem to get fairly hot.

 

[White90Bronco]

Your master cylinder could be leaking inside itself and not show any external signs of leaking so you might want to check it out. You might also want to check the wheel cylinders for leaks, too.

 

[bluesman17]

On mine there was a washer I didnt put in and it caused the caliper to leak everytime i pushed the brake down. Just throwing that out there...

 

[stubby]

if you pump the pedal, do the brakes get better? might be air in the lines, also you can crimp the brake lines one at a time(rubber hose ONLY) does the pedal get any better- hard to explain over postings..... by crimping, or cutting the fluid to the brake caliper you can tell which wheel has the problem or if it's the master, you can block off one then 2, than all three rubber hoses, you may try bleeding the master as well. start at the furthest point and bleed forward- make sure you have new fluid coming out each bleeder before moving to the next wheel... also by pushing in the calipers, without opening bleeders, you could have pushed some rust back through the system, i have had to use a whole bottle of brake fluid on one wheel before. also there is a valvethat diverts brake from front to rear- if you loose brake pressure up front that valve closes and would need to be bled out- tap it with a hammer works if its stuck... good luck

 

[Big Red]

it's your Master Cylinder!!! i should no i had the same problem. /emoticons/[email protected] 2x" width="20" height="20" />

 

[cascarufio]

Thanks for the help,

I haven't tried bleeding the master yet. How would I go about doing that?

 

[stubby]

pump your brake pedal, just like bleeding the calipers, start with the front line- pump 5 times- hold- open(i never let the pedal go to the floor), close- repeat- might have to do the lines after

 

[cascarufio]

pump your brake pedal, just like bleeding the calipers, start with the front line- pump 5 times- hold- open(i never let the pedal go to the floor), close- repeat- might have to do the lines after

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Thanks much..... It worked!

 

[stubby]

congrats!!!!! next time you'll be the one telling someone else how to do it

 

[cascarufio]

congrats!!!!! next time you'll be the one telling someone else how to do it

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I'd be glad to pass on the knowledge.........Thanks!