maxxis26 Posted March 5, 2009 Report Share Posted March 5, 2009 having some issues with an avid juicy 7 - the lever keeps coming to the barive bleed it with fresh oil and it makes no difference it keeps coming backit seems like the lever seal has gonetheres a video on photobucket showing the issues im having:http://s593.photobucket.com/albums/tt16/ma...nt=PICT0114.flvthe brake works but now quite as it shouldany ideas on a solution as im stuck thinking a lever seal kit of chainreactionmaxxis Quote Link to comment Share on other sites More sharing options...
psycholist Posted March 6, 2009 Report Share Posted March 6, 2009 I've seen the lever seals get draggy in weeks on 3 sets of brand new Juicy 3 brakes, so Avid lever seals may not be quite right (They still don't leak though). From the video it looks like the front seal on the lever piston is leaking. The piston has 2 seals, the first to apply pressure to the fluid so the brake works, the second to stop the fluid leaking out of the reservoir when the first seal has passed the reservoir outlet as the lever is pulled. If there's no leak to the outside the back seal is still fine. My advice is to replace with Shimano or Magura and never have to worry about crappy seals again... Quote Link to comment Share on other sites More sharing options...
maxxis26 Posted March 6, 2009 Author Report Share Posted March 6, 2009 where would i get a new seal from can you guve me a link to some where please as im not sure what im buying Quote Link to comment Share on other sites More sharing options...
psycholist Posted March 6, 2009 Report Share Posted March 6, 2009 (edited) Have a look at step 31 in this manual: http://www.cycleslambert.com/download.php/...yTechManual.pdfThe cup shaped seal shown in the picture is likely to be the one that's leaking on you (Assuming there's no evidence of fluid leaking out of the brake). Check to make sure the reservoir is completely filled with fluid too though that creates a slightly different behaviour where the bite point of the brake changes each time you pull the lever rather than a consistent initial bite point which moves in as the lever remains pulled...This probably contains the correct seal, but will have a bunch of other stuff you probably don't need: http://www.ukbikestore.co.uk/Product/0/a11...servicekit.htmlIf the brake is within warranty send it to the shop you bought it from and get them to sort it. Edited March 6, 2009 by psycholist Quote Link to comment Share on other sites More sharing options...
Lewis-Trials Posted March 6, 2009 Report Share Posted March 6, 2009 This what happened to my Avid Juicy 5 on mountain bike, What it was is i freshly bled it and the same thing happened, So i did bled it again put the wheel in and in side the lever there that allen key screw that you need to screw in as mush as you want it, And it worked for me. Quote Link to comment Share on other sites More sharing options...
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