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Old 06-10-10, 06:03 PM   #1
xfimpg
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Disc brake pistons are pushed in and are barely coming back out

Hi

I'm cleaning out the pads on a Deore M486 disc brake and I pushed the pistons back in and flush to the inside of the caliper as one of them was really sticking out, but i didn't hear it pop.

Now the pads are back in but the pistons will barely come out.
Is there a simple fix to this?

Thanks!
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Old 06-11-10, 12:46 AM   #2
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Like I said in my PM, I've never had this issue, so I'm not sure what you could do.

Have you tried working/pumping the lever a few times?
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Old 06-11-10, 03:18 AM   #3
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Airlock. Bleed them.
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Old 06-11-10, 05:58 AM   #4
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Airlock. Bleed them.
ok, thanks.
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Old 06-11-10, 06:38 AM   #5
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and if that don't work, you have a blown cylinder seal, or a leak...
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Old 06-11-10, 12:35 PM   #6
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and if that don't work, you have a blown cylinder seal, or a leak...
New from March so I think it's air.
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