1957 Front Brakes Locking Up

[Makdr1]

I replaced the master cylinder on my 57 Bird due to leak.after ,the breaks are too good,the slightest pressure on the pedal and front breaks lock up.I heard somewhere that the size of the outlet hole in the master may be too big.anyone know what it might be?

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[57tbird57]

sounds like the rod going into the master cylinder is either out of place or out of adjustment

 

[biddle]

Please follow the directions for posting on future posts. "Break" is not a summary of your post and the model year is missing.

P.S. it's Brakes.

 

[Ward 57]

I replaced the master cylinder on my 57 Bird due to leak.after ,the breaks are too good,the slightest pressure on the pedal and front breaks lock up.I heard somewhere that the size of the outlet hole in the master may be too big.anyone know what it might be?

Did you bleed the line from the master to the slave on the booster? I had the same problem and that solved it.

 

[e009061]

i also read that if the mstr cyl is not bench bled , air can make the brakes lock up