 Press brake piston into caliper bore?, how to do that? |
 Dec 22, 2012 - 2:15 PM
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Enthusiast  Joined Sep 9, '12 Currently Offline Reputation: 0 (0%)  |
Can't press piston into caliper bore. Any advice?
This post has been edited by dangqiwu: Jan 2, 2013 - 11:35 PM |
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Dec 22, 2012 - 3:44 PM
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 Enthusiast Joined Aug 25, '08 From England Currently Offline Reputation: 1 (100%) |
I dont think you will need any tools, remove the brake pads, press the brake pedal once or twice, enough to push the piston out by a half inch or so, remove the rubber boot, you might need a small flat blade screw driver to wangle the metal spring clip off the outside of the boot. once the boot is removed look at the brake piston, if its nice and clean then you should be able to push it back in, However, corrosion will cause the piston to jam against the seal which is perhaps why it wont go back in. You will need to replace the piston with a new or rust free second hand one, in an ideal world you should change the seal too, but you can sometimes get away with reusing the old one if it has not suffered any damage.
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Dec 22, 2012 - 6:33 PM
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Enthusiast Joined Sep 9, '12 Currently Offline Reputation: 0 (0%) |
QUOTE (Nial @ Dec 22, 2012 - 3:44 PM)  I dont think you will need any tools, remove the brake pads, press the brake pedal once or twice, enough to push the piston out by a half inch or so, remove the rubber boot, you might need a small flat blade screw driver to wangle the metal spring clip off the outside of the boot. once the boot is removed look at the brake piston, if its nice and clean then you should be able to push it back in, However, corrosion will cause the piston to jam against the seal which is perhaps why it wont go back in. You will need to replace the piston with a new or rust free second hand one, in an ideal world you should change the seal too, but you can sometimes get away with reusing the old one if it has not suffered any damage. The piston looks OK, just several point of rust. Would it help if I loose the bleeder screw? QUOTE (xrav22 @ Dec 22, 2012 - 3:46 PM) Oh I would not do all that. Take out the brake pads(remembering how they go) and just get a c clamp and press the caliper back slowly moving side to side. Make sure to remove brake resiviour cap because your fluid will rise back up, and put the cap BACK on before pressing the brakes after you are done. Or you will have to bleed brakes. I tried with a C-Clamp but it's not working... |
Posts in this topic
dangqiwu Press brake piston into caliper bore? Dec 22, 2012 - 2:15 PM
Nial Remove the rubber boot and check for corrosion. Dec 22, 2012 - 2:32 PM
dangqiwu QUOTE (Nial @ Dec 22, 2012 - 3:32 PM... Dec 22, 2012 - 3:18 PM xrav22 QUOTE (dangqiwu @ Dec 22, 2012 - 4:1... Dec 22, 2012 - 3:46 PM xrav22 QUOTE (dangqiwu @ Dec 22, 2012 - 6:3... Dec 22, 2012 - 8:25 PM dangqiwu QUOTE (xrav22 @ Dec 22, 2012 - 9:25 ... Dec 23, 2012 - 2:58 AM Nial QUOTE (dangqiwu @ Dec 23, 2012 - 2:5... Dec 23, 2012 - 3:27 AM Nial QUOTE (dangqiwu @ Dec 22, 2012 - 6:3... Dec 23, 2012 - 12:23 AM dangqiwu Here is a photo of piston. There is no rust on pis... Dec 23, 2012 - 12:58 PM dangqiwu I found the instruction to remove caliper. It says... Dec 23, 2012 - 1:33 PM Smaay dont worry about doing that. if you need to push t... Dec 23, 2012 - 2:29 PM Nial The piston does look clean so I guess not corrosio... Dec 23, 2012 - 3:00 PM dangqiwu Thanks guys. Finally it moves!!!
The p... Dec 23, 2012 - 4:50 PM xrav22 QUOTE (dangqiwu @ Dec 23, 2012 - 5:5... Dec 24, 2012 - 8:43 AM |
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