Brake performance is declining..., pedal is losing its stiffness |
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Brake performance is declining..., pedal is losing its stiffness |
Aaron Cox |
Apr 4 2005, 11:06 AM
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#1
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
ok... so my pedal was uber firm 3 months ago.....and just the other day i dont feel all that confident in my braking ability...i mean it stops... but the pedal is no where near as firm as it used to be....
resevoir is full.... no leaks....anywhere 6 month old SS lines..... PO's 19mm MC rebuilt M calipers and non leaking and one rebuilt rear caliper.... is my MC dying a slow and scary death? i like my pedals rock firm.... oh...btw i KNOW in the future i will be using 986 brakes..... can i use a 19mm MC with those? or will i have to buy a new one at that time (IMG:http://www.914world.com/bbs2/html/emoticons/sad.gif) |
lapuwali |
Apr 4 2005, 12:24 PM
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#2
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Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743 |
At a stop, mash the brake pedal HARD and hold it down. If it slowly sinks, then you very likely have an MC leak. Have you checked under the carpet at the pedal cluster? MCs frequently leak down the pedal pushrod, and get brake fluid all over the floor under the carpet.
Water or air getting into the system will cause mushiness. Non-silicone brake fluid likes water, so over time, it will absorb atmospheric water however it can, such as through the reservior vent hole. Usually this process takes a couple of years to show up, but it can happen faster if it's been exceptionally humid recently. |
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