RE: Mushy ST Brakes

[Erik Miner <Axeis@xxxxxxxxxxxxxx>]

Everyone read this!  After getting my ST and putting around 2-3000k 
on it noticed the brakes got mushy. So I pulled the calipers. What 
did I find?? That one piston on both sides at least was hanging up. 
It wasn't even pushing on the pad. So out of 4 pistons I had no 
better than three working. On one caliper I remember that only two 
were working!  After cleaning the brakes with brake clean and pumping 
them so the pads touched and spread them a couple of times ( as 
described) all was fine. Now maybe it's a combination of not enough 
fluid getting where it should causing the pistons to temporally 
seize.. Maybe also adding height to the reservoir would help to keep 
it from happening at all.

Erik


>This has been discussed on the list before. Take a look at:
>http://www.t5net.com/common/faq/Brakes/lever_travel.html
>I found this to be the root cause for the Mushy brakes on my 2000 ST. After
>I pulled the calipers, cleaned the pistons, pushed the pistons back, and
>pumped the brakes back up - I no longer had the problem.
>I can see how the master cylinder might get starved, but only if you had a
>low fluid level in the reservoir. But if raising the reservoir worked for
>you.....
>
>James
>'00 Sprint ST
>
>
>
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