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Old 02-22-08, 06:57 PM   #1
rankin116
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Question about Hydros Leaking Fluid - Hayes Nines

I have a set of Hayes Nines and my rear brake has always felt a little stiff I guess. The lever didn't have to travel too far for the brake to engage and the pads were always pretty close to the rotor. I picked up a new set of brakes and today I removed the old ones, the Nines. I bought these used and the rear has always felt stiff. So when I took them off, I crammed the spacer that came with the new brakes in between the pads, and fluid started leaking out of the master cylinder. Could the person I bought these from have over filled the resevoir? Is it possible I did any serious damage?
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Old 02-22-08, 07:24 PM   #2
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Were the new brakes shipped from a different elevation?

Atmospheric pressure will affect fluid volume. I've had brakes come in that required excess fluid to be bled off before they worked properly.
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Old 02-22-08, 07:29 PM   #3
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Oh, no, the old brakes leaked.

The new ones are Strokers, the old ones are Nines. After I took the stiff, or tight, Nine off the back, I had to cram the spacer in between the pads. It was tough to get it in. I could see one of the pistons was not returning all the way. The Hayes instructions say to cram the spacer to push the piston back. That's when it leaked out of the master cylinder.

Sorry for the confusion.
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Old 02-22-08, 07:40 PM   #4
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Well, if the old brakes leaked fluid, that means that air also had a way in. It could just be increased fluid volume due to air bubbles.
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