Spongy Brake pedal after JCW Brake Inst
#1
Spongy Brake pedal after JCW Brake Inst
Just installed the JCW Brake kit from Outmotoring with new rotors on the rear for good measure and switched the brake fluid to Super Blue at the same time.
I have bled the brakes using the two man method 2 times now and I'm getting clean clear blue fluid out of all 4 brakes and I have no leaks but the brake pedal is so spongy that I don't get full braking until 1/2" from pedal bottoming out.
Haynes Manual says it's either trapped air or a bad master cylinder. Has anyone else experienced a problem when switching brake fluid?
I have bled the brakes using the two man method 2 times now and I'm getting clean clear blue fluid out of all 4 brakes and I have no leaks but the brake pedal is so spongy that I don't get full braking until 1/2" from pedal bottoming out.
Haynes Manual says it's either trapped air or a bad master cylinder. Has anyone else experienced a problem when switching brake fluid?
#2
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Sorry to bring up this old thread, but I may have the answer for you. When I had my JCW brakes installed I noticed they felt spongy too. Basically it's because you are moving more pistons with the same size master cylinder. so basically it takes more volume of fluid to move the brake parts. This is what I was told by the tech. The stopping power is there, but it does take a little more travel to get them to engage. I found that they take a thousand miles or so to really seat. After that they felt much better to me. Maybe I just got used to them.
#3
#4
When you say engage ABS, do you mean slam on the brakes in wet conditions? Or is there some way to do it electronically?
#5
#6
I noticed the many OEM shops have a pump they use that cycles the ABS and does a great job with trapped air.
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