Brake Pedal Dive
10-03-2010, 09:18 AM
#1
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Location: Mission Viejo Ca
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Brake Pedal Dive
I am having a little bit of brake pedal dive when I initially apply the brakes. It really feels like air in the lines because it goes away if I lift and re-apply pressure to the pedal. I just did a Tech2 bleed and meticulously bled the entire system with new fluid so I am looking for other possibilities if anyone has suggestions. My set-up is a stock C5Z master cylinder with StopTech ST60/40 calipers. Any insight is greatly appreciated.
10-03-2010, 02:35 PM
#2
Race Director
is it consistent (hot, cold, start of session, end, etc)? The only thing that immediately comes to mind would be a bit of knock-back, which could be caused by something out of center between the rotors and calipers. IE, if there was a bit of debris behind one of the rotors, it could be wobbling a bit, forcing the pads back into the bore just a tiny bit.
10-03-2010, 09:41 PM
#3
Burning Brakes
And the more worn your pads are the more room there is for knock-back. This leads to a "long pedal", but the brakes still work effectively.
In the last third of a pad's useful life this becomes very noticeable. Needless to say if this is the cause, bleeding won't fix, but a new set of pads will.
HTH