DannyBaz Posted April 12, 2009 Report Share Posted April 12, 2009 Hey Guys,As you've guessed from the title, I have a lazy piston. For those who don't know, a lazy piston is when you pull your brake, and the pad comes out, but doesn't go back in, and it rubs on the rim. I've had a look on the wiki, and I can't take my brake apart like it says and pump it out because I don't have a tube/ bleed kit.Is there a way I could do it without a tube, that wouldn't take a long time?Also, my brake is water bled, and I re-bled it to see if that would sort the piston out... It didn't So, any help would be appreciated...Thanks, DannyBaz x Quote Link to comment Share on other sites More sharing options...
nickdonboy Posted April 12, 2009 Report Share Posted April 12, 2009 I might sound abit stupid but, isn't that your TPA is to far out as in its screwed out? nick Quote Link to comment Share on other sites More sharing options...
DannyBaz Posted April 12, 2009 Author Report Share Posted April 12, 2009 I might sound abit stupid but, isn't that your TPA is to far out as in its screwed out? nickNo, I tried turning my TPA down, and then back up again, and it made no difference. Thanks for suggesting though ! Quote Link to comment Share on other sites More sharing options...
JackC123 Posted April 12, 2009 Report Share Posted April 12, 2009 Sorry but it is meerly common sence, just use plyers or something on the lines of that.I am using an emulsion fluid, it was forteh and his amazing dad who gave me the idea, so I mixed up 5 parts water, 3 spray oil and 1 fairy liquid. I have been using it for about a month now and it is working amazingly. Quote Link to comment Share on other sites More sharing options...
ChrisShaw Posted April 12, 2009 Report Share Posted April 12, 2009 No, I tried turning my TPA down, and then back up again, and it made no difference. Thanks for suggesting though ! Usually a lazy piston happens because you have the tpa screwed in too far. Turn your tpa right down and see if you have the same problem, if you don't anymore, unscrew your brakes and set them closer to the rim. Quote Link to comment Share on other sites More sharing options...
JackC123 Posted April 12, 2009 Report Share Posted April 12, 2009 Usually a lazy piston happens because you have the tpa screwed in too far. Turn your tpa right down and see if you have the same problem, if you don't anymore, unscrew your brakes and set them closer to the rim.Doesnt nessacerily mean all of the time. Quote Link to comment Share on other sites More sharing options...
ChrisShaw Posted April 12, 2009 Report Share Posted April 12, 2009 Doesnt nessacerily mean all of the time. That's right, but most of the time it's because the tpa is screwed in too far. Quote Link to comment Share on other sites More sharing options...
DannyBaz Posted April 12, 2009 Author Report Share Posted April 12, 2009 Thanks Chris, thanks Jack. I will Go and turn the TPA down as far as it will go and see how the piston is. Just one minute... Quote Link to comment Share on other sites More sharing options...
JackC123 Posted April 12, 2009 Report Share Posted April 12, 2009 (edited) That's right, but most of the time it's because the tpa is screwed in too far.IDK, im not listning to someone who only joined afew minutes ago.@ Dannybaz, alright mate Edited April 12, 2009 by JackC123 Quote Link to comment Share on other sites More sharing options...
ChrisShaw Posted April 12, 2009 Report Share Posted April 12, 2009 IDK, im not listning to someone who only joined afew minutes ago.Just joined but been riding for years. Quote Link to comment Share on other sites More sharing options...
DannyBaz Posted April 12, 2009 Author Report Share Posted April 12, 2009 Ok, I have twisted the TPA down and the lazy piston is going back in properly. The only problem is that the lever comes in too close to the grips. I will move the pistons in in the morning. But for now, its tea time thanks everyone Quote Link to comment Share on other sites More sharing options...
ginger allen echo Posted April 12, 2009 Report Share Posted April 12, 2009 (edited) Hey Guys,As you've guessed from the title, I have a lazy piston. For those who don't know, a lazy piston is when you pull your brake, and the pad comes out, but doesn't go back in, and it rubs on the rim. I've had a look on the wiki, and I can't take my brake apart like it says and pump it out because I don't have a tube/ bleed kit.Is there a way I could do it without a tube, that wouldn't take a long time?Also, my brake is water bled, and I re-bled it to see if that would sort the piston out... It didn't So, any help would be appreciated...Thanks, DannyBaz xAlso, get your hands on some 3 in 1 oil. It's in a black and white can with a red nosle. Take your pads off the pistons and queeze your brake so your lever touches the bar and put a little tab on each piston and press your brake a few times to spread the lube around the piston, clean the residue off after and it's done. Works a treat. Word of warning. don't use silicone lube spray. It rots the seals on your pistons.Ginger Allen Edited April 12, 2009 by ginger allen echo Quote Link to comment Share on other sites More sharing options...
Dan6061 Posted April 12, 2009 Report Share Posted April 12, 2009 You could take the pads off, grip the little nipple bit with some mole grips, pull the piston out and then grease/lube up the piston. Pull the brake a few times, and it should sort it out.Try giving it a flesh bleed too, they could just be slow because of air in the system. With the TPA wound right out, slowly pull the lever. The pistons should move out straight away, if they don't you have air in the system and you need a fresh bleed! Quote Link to comment Share on other sites More sharing options...
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