Milo Posted December 11, 2013 Report Share Posted December 11, 2013 Guys, would appreciate it if any one could help me out with this. I have a minor leak on my Echo front hydraulic disk brake. The leak is on both the front and rear of the brake lever in the area shown. It does not drip although the oil is there. Im not too clever with hydraulics and new to Echo, does anyone know what would need replacing / fixing? Thanks Quote Link to comment Share on other sites More sharing options...
dngr2self Posted December 11, 2013 Report Share Posted December 11, 2013 I used some stuff called t seal on the bleed bolt, it's a bit like liquid ptfe tape, that stopped it leaking from there. I just got a new o ring to stop the piston leaking. 1 Quote Link to comment Share on other sites More sharing options...
Blake Posted December 11, 2013 Report Share Posted December 11, 2013 The part you're pointing to is just the lever pivot bolt, so it can't be leaking from there exactly. But the oil could be reaching there from the bore. Echo are fairly notorious for leaking from the bore, try getting a different piston or o rings for it if it's leaking from there. X 1 Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted December 11, 2013 Report Share Posted December 11, 2013 Are the rim and disk brake levers the same? ^^^what he said Quote Link to comment Share on other sites More sharing options...
crilin202 Posted December 11, 2013 Report Share Posted December 11, 2013 I think they are the same, gently Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted December 11, 2013 Report Share Posted December 11, 2013 Are the rim and disk brake levers the same? ^^^what he said Nearly - the pivot location is slightly different (thus the body and lever blade differ a little), but the fittings, piston, seals, etc are the same. Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted December 11, 2013 Report Share Posted December 11, 2013 Nearly - the pivot location is slightly different (thus the body and lever blade differ a little), but the fittings, piston, seals, etc are the same.ahh , ok. Can the one operate the other as well? Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted December 11, 2013 Report Share Posted December 11, 2013 Yes, but the leverage ratios will be allllll over the place - disc brake lever has 'more power'. Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted December 11, 2013 Report Share Posted December 11, 2013 Is that a bad thing? I asumed the throw of the lever to change, less on the disk one? But more power doesn't sound bad, is it a case of putting more force on the lever to operate? Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted December 11, 2013 Report Share Posted December 11, 2013 if the leverage is higher you need less force to get the same pressure at the slave pistons. adam,did they kind of adapt the old julie low pressure system then? i mean ,normally a disc master unit wouldnt work with a rim slave due to the surface ratio of the pistons Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted December 12, 2013 Report Share Posted December 12, 2013 So.. disk levers = insane rim brakes? Well up for that Quote Link to comment Share on other sites More sharing options...
dngr2self Posted December 12, 2013 Report Share Posted December 12, 2013 So.. disk levers = insane rim brakes? Well up for that It doesn't work like that unfortunately or loads of people would do it. Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted December 12, 2013 Report Share Posted December 12, 2013 It doesn't work like that unfortunately or loads of people would do it.to be fair, I suspected it wouldn't .interested to see the difference though. Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted December 12, 2013 Report Share Posted December 12, 2013 adam,did they kind of adapt the old julie low pressure system then? Erm, sort of, I guess. The pressure is nearly as high as a normal disc brake due to the leverage ratio of the lever, though... It doesn't work like that unfortunately or loads of people would do it. It would do to be fair, just people don't seem to have tried it! Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted December 12, 2013 Report Share Posted December 12, 2013 Anybody have one? I'll give it a go . I have a rim brake lever, if there's a disk lever floating about I'll take it. Quote Link to comment Share on other sites More sharing options...
dngr2self Posted December 12, 2013 Report Share Posted December 12, 2013 It would do to be fair, just people don't seem to have tried it! Do you mean just with the Echo disk levers or disk levers in general? I tried it with an Avid hydraulic disk lever and couldn't get it to work properly. It could have just been down to me not doing it properly though. Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted December 12, 2013 Report Share Posted December 12, 2013 (edited) the fact aside that a lever designed for brake fluid will never work on a brake system for mineral oil,no.only old julies and the echo (aparently) have a low pressure,high volume system Do you mean just with the Echo disk levers or disk levers in general? I tried it with an Avid hydraulic disk lever and couldn't get it to work properly. It could have just been down to me not doing it properly though. edit:oh, and an old sachs disc brake that looked like a truck brake,but had plenty of power. http://www.velomobilforum.de/forum/attachment.php?attachmentid=39977&stc=1&thumb=1&d=1359838342 Edited December 12, 2013 by FamilyBiker Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted December 12, 2013 Report Share Posted December 12, 2013 Yeah, just the echo, as I already have a rim lever to compare it to Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted December 12, 2013 Report Share Posted December 12, 2013 Yeah, just the echo, as I already have a rim lever to compare it to you have both?visible differences are? Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted December 12, 2013 Report Share Posted December 12, 2013 Anybody have one? I'll give it a go . I have a rim brake lever, if there's a disk lever floating about I'll take it. you have both?visible differences are?? .keep up man Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted December 12, 2013 Report Share Posted December 12, 2013 oh,typical multiforum read error Quote Link to comment Share on other sites More sharing options...
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