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Old 06-03-2011, 04:55 PM   #1
haythamboi600
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BREAK PISTONS WONT PUSH BACK !!!!!!!

so i opened up my rear break caliper, to change my rear brake pads, cleaned it out, but cant push back these freaking break pistons to install new brake pads please help !!!!!!
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Old 06-03-2011, 04:56 PM   #2
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crack the bleeder, then push and close the bleeder after pushing to ensure no additional air gets in the line....then pump the brakes to ensure all air is out of the system.

EDIT: I usually leave the old pad in one side and use a small C clamp (with a rag or something in between to keep from scratching the caliper) and tighten to push them back in.

Last edited by dbuck; 06-03-2011 at 04:59 PM.
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Old 06-03-2011, 05:00 PM   #3
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pardon my ignorancy but crack the bleeder?
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Old 06-03-2011, 05:02 PM   #4
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Quote:
Originally Posted by haythamboi600 View Post
pardon my ignorancy but crack the bleeder?
the nipple on the caliper (it usually has a rubber cap)...crack it open with an open end wrench (lefty loosey, righty tighty)...usually an 8 mm or similar size.

Also, don't push too fast or you'll squirt brake fluid all over the place (make sure it doesn't get on your paint!).

Last edited by dbuck; 06-03-2011 at 05:04 PM.
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Old 06-03-2011, 05:03 PM   #5
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VW?
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Old 06-03-2011, 05:04 PM   #6
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i got both of them oepened

p/s: im working on it as i read so keep it coming, thank you so much guys
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Old 06-03-2011, 05:06 PM   #7
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Quote:
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i got both of them oepened
p/s: im working on it as i read so keep it coming, thank you so much guys
I don't know what kind of bike you are working on, but most only have one rear caliper/rotor so there should only be one bleeder. Not sure what you mean by having both of them open.

Can you post a picture?
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Old 06-03-2011, 05:11 PM   #8
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04 gsxr 600. and uploading pics rite now
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Old 06-03-2011, 05:19 PM   #9
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nevermind, you beat me to it.


I am off of Hwy 6, near richmond. I may be able to swing by and take a look. I have my children this weekend, maybe during the evening, when slow, or "nap time" I can get take a look.

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Old 06-03-2011, 06:48 PM   #10
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Just crack the bleeder screw. Its hollow. Dont remove it all the way.
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Old 06-03-2011, 06:56 PM   #11
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clean the pistons BEFORE you drive them back into the calipers to accommodate the new pads
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Old 06-03-2011, 06:56 PM   #12
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clean the pistons BEFORE you drive them back into the calipers to accommodate the new pads
Good point. Scotch bright pad and brake cleaner with get it done
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Old 06-03-2011, 07:00 PM   #13
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Good point. Scotch bright pad and brake cleaner with get it done
luke warm weak soapy water with used washing up pad

softly softly catches the monkey
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Old 06-03-2011, 07:21 PM   #14
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I like red scotch for that
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Old 06-03-2011, 07:23 PM   #15
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Use a smallish c-clamp.
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Old 06-03-2011, 07:24 PM   #16
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I like red scotch for that

I like a mature Scotch
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Old 06-03-2011, 07:55 PM   #17
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Old 06-03-2011, 09:14 PM   #18
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Quote:
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pardon my ignorancy but crack the bleeder?
if you are asking these questions i would probably look over the shoulder of a person that knows where they are doing first
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Old 06-03-2011, 09:18 PM   #19
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if you are asking these questions i would probably look over the shoulder of a person that knows where they are doing first
This right here ^^^ is good advice.
If you continue, you may find you have to pump the pedal a few times to reseat the pistons. Otherwise the pedal will feel like there is nothing there.

BTW they are BRAKE pistons not break.
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Old 06-03-2011, 11:58 PM   #20
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Got his pistons put back in and pads installed, but his bike needs some more TLC. Brake fluid was a chocolate shake. Nonetheless, I suggested a caliper rebuild kit and a trip to a reliable mechanic for a much needed look over.

Good luck Salik.
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