Brake Install Issue
03-14-2009, 11:57 PM
#1
2nd Gear Member
Thread Starter
Join Date: Mar 2008
Location: Germantown, MD
Posts: 226
Brake Install Issue - PLEASE HELP ADVICE NEEDED
So I just upgraded to the cragar big brake kit (front only) and after installing them, i took the car out to test. The brakes work and stop fine, the problem is that the brake pedal is very mushy. 
It takes 1-3 inches of press before the brakes really start to engage, but once they do they work fine. I asked my cousin (a mechanic) and he suggested that upgrading to a 3 piston set-up without changing the master cylinder might be the issue. Is that stock one not powerful enough to put pressure through 3 pistons, anyone have this issue with upgrading to brembos, gt500 brakes, etc? 
If that is the issue what kind of job is changing the cylinder?
Any kind of help would be greatly appreciated.
It takes 1-3 inches of press before the brakes really start to engage, but once they do they work fine. I asked my cousin (a mechanic) and he suggested that upgrading to a 3 piston set-up without changing the master cylinder might be the issue. Is that stock one not powerful enough to put pressure through 3 pistons, anyone have this issue with upgrading to brembos, gt500 brakes, etc? If that is the issue what kind of job is changing the cylinder?Any kind of help would be greatly appreciated.
Last edited by dark-army; 03-15-2009 at 12:43 AM.
03-15-2009, 12:52 AM
#2
4th Gear Member
Join Date: Mar 2005
Location:
Posts: 1,538
So I just upgraded to the cragar big brake kit (front only) and after installing them, i took the car out to test. The brakes work and stop fine, the problem is that the brake pedal is very mushy. It takes 1-3 inches of press before the brakes really start to engage, but once they do they work fine. I asked my cousin (a mechanic) and he suggested that upgrading to a 3 piston set-up without changing the master cylinder might be the issue. Is that stock one not powerful enough to put pressure through 3 pistons, anyone have this issue with upgrading to brembos, gt500 brakes, etc? If that is the issue what kind of job is changing the cylinder?
Any kind of help would be greatly appreciated.
It takes 1-3 inches of press before the brakes really start to engage, but once they do they work fine. I asked my cousin (a mechanic) and he suggested that upgrading to a 3 piston set-up without changing the master cylinder might be the issue. Is that stock one not powerful enough to put pressure through 3 pistons, anyone have this issue with upgrading to brembos, gt500 brakes, etc? If that is the issue what kind of job is changing the cylinder?Any kind of help would be greatly appreciated.
03-15-2009, 07:10 AM
#3
2nd Gear Member
Join Date: Dec 2007
Location: Ill
Posts: 269
It sounds like you have air in the system, you may have to re-bleed the brake system.do all four wheels not just the fronts.start at the right rear go to the left rear then the right front then the left front that will take care of the problem.
03-15-2009, 09:45 AM
#4
4th Gear Member
Join Date: Mar 2005
Location:
Posts: 1,538
I am going to bleed some brakes today, how come all 4, why not just the fronts?
03-15-2009, 12:03 PM
#6
3rd Gear Member
Join Date: Sep 2006
Location: So Cal
Posts: 676
When I installed my Baer's and stainless lines, I only bled the fronts and have had no issues. Sequence I followed for bleeding, http://www.baer.com/technical/brakin...e-bleeding.php
03-15-2009, 05:49 PM
#7
2nd Gear Member
Thread Starter
Join Date: Mar 2008
Location: Germantown, MD
Posts: 226
Ok, went back, bled all four corners, and the pedals still have a really mushy feel to them. There is def. no air in the lines anymore. Any other suggestions? And does it really matter which order I went in, b/c i think I went passenger front, driver front, driver rear, passenger rear.
03-15-2009, 06:37 PM
#9
4th Gear Member
Join Date: Mar 2005
Location:
Posts: 1,538
I was told the procedure had to be the following:
passenger rear, driver rear, passenger front, and driver front.
However I think there is something else to it. You can try to do SS lines since you are using stock lines. Also, how long have you been having mushy brakes for exactly?
passenger rear, driver rear, passenger front, and driver front.
However I think there is something else to it. You can try to do SS lines since you are using stock lines. Also, how long have you been having mushy brakes for exactly?
