brake master cylinder, do they easily go bad?
 

A month ago or so I had some brake problems and ended up replacing the brake booster, master cylinder and one wheel cylinder. Bleeded the system, but I wasn't getting that much of pressure, It wasn't stiff as it used to be. After driving for awhile everything went back to normal, no more brake problem. Few days ago, one of my front brake line broke on my way to work, I had to drive it hardcore using the ebrake >:D to work and back home. Now I replaced the line with a new one, bleeded the system, but I'm not getting anywhere. The pedal will floor all the way down, no brake at all. Is my master cylinder fucked up because of the leak in the line and driving it that way ??? Not really sure what to do, I bleeded the system so many times and still not getting anywhere. Any inputs ?

Re: brake master cylinder, do they easily go bad?
 

bleed all 4 brakes

master doesnt ---- up like that

Re: brake master cylinder, do they easily go bad?
 

you didn't ---- the master up. start at the back, and bleed the system all the way around

Re: brake master cylinder, do they easily go bad?
 

you check for leaks in the system? You pull off both drums and check good? Also check the proporting valve. Bleed it real good, start from the farthest point from the master and work your way around. If its still continuing to ---- up, I'd probably try and get another master cyl.

Re: brake master cylinder, do they easily go bad?
 

yeah my brakes are hella F'ed up too...

after my motor swap, i bled the brakes and everythings still friked up. the brakes feels fine when im driving(i guess because of the brake booster line) but when im in neutral holding down the clutch and pulling into a parking spot, my brakes go completely deaddd. last week while pulling into action auto parts, i nailed the curb, broke my front type R lip, and also curbed my rims. iv been working on this gay problem for the past 5 days everyday after school... i spent all of today bleeding the brakes, checking for leaks and all that ---- too. wtf is wrong??

Re: brake master cylinder, do they easily go bad?
 

if there's no leaks, i'd prolly change out the master cylinder......thread jacker :P

Re: brake master cylinder, do they easily go bad?
 

Not leak that I remember, but I need to double check on the drums. How do you check the proportioning valve anyways, I've never messed it with before ???