Thebigjam101 Posted June 17, 2014 Report Share Posted June 17, 2014 Hi guys! I have a magura raceline 2000/2002 (unsure) water bled, and I have to re bleed it every ten minutes because water comes out of the bleed screw on the lever body. I've tried rubber o-rings, washers, plastic o-rings and water still manages to escape. I'm thinkng the only solution is some form of glue? Help would be appreciated. Quote Link to comment Share on other sites More sharing options...
harmertrials Posted June 17, 2014 Report Share Posted June 17, 2014 Try a bit of ptfe tape Quote Link to comment Share on other sites More sharing options...
Thebigjam101 Posted June 17, 2014 Author Report Share Posted June 17, 2014 Oh and only when I squeeze the lever Pfte?Try a bit of ptfe tape Quote Link to comment Share on other sites More sharing options...
harmertrials Posted June 17, 2014 Report Share Posted June 17, 2014 http://www.wickes.co.uk/Wickes-PTFE-Tape/p/420188 wrap it around the threads, will work. Quote Link to comment Share on other sites More sharing options...
Thebigjam101 Posted June 17, 2014 Author Report Share Posted June 17, 2014 http://www.wickes.co.uk/Wickes-PTFE-Tape/p/420188 wrap it around the threads, will work. I think I jVe some of that, but Surely wrapping it around the threads means you won't be able to screw the bleed bolt in?I've got* Quote Link to comment Share on other sites More sharing options...
monkeyseemonkeydo Posted June 17, 2014 Report Share Posted June 17, 2014 PTFE is super thin and kind of moulds to the threads to seal imperfections. Quote Link to comment Share on other sites More sharing options...
Thebigjam101 Posted June 17, 2014 Author Report Share Posted June 17, 2014 PTFE is super thin and kind of moulds to the threads to seal imperfections. ahh thanks I'll give it a go Quote Link to comment Share on other sites More sharing options...
HippY Posted June 17, 2014 Report Share Posted June 17, 2014 This tape is used by plumbers, so when they want to join 2 tubes with threads, they put this tape on it so it will be 100% sealed Just let you know what is is really Quote Link to comment Share on other sites More sharing options...
Thebigjam101 Posted June 17, 2014 Author Report Share Posted June 17, 2014 This tape is used by plumbers, so when they want to join 2 tubes with threads, they put this tape on it so it will be 100% sealed Just let you know what is is really thanks I got the general gist, will give it a go when I can be bothered to leave my bed and re bleed the brake for the umpteenth time. D: Quote Link to comment Share on other sites More sharing options...
dann2707 Posted June 17, 2014 Report Share Posted June 17, 2014 This is the first time I've heard of the bleed screw failing to hold a seal. Weird as owt Quote Link to comment Share on other sites More sharing options...
Thebigjam101 Posted June 17, 2014 Author Report Share Posted June 17, 2014 It is 12-14 year old and not in the best condition, the bleed bolt on the slave cylinders is fine and it doesn't have nowtThis is the first time I've heard of the bleed screw failing to hold a seal. Weird as owtSo I'm a bit annoyed Quote Link to comment Share on other sites More sharing options...
dngr2self Posted June 17, 2014 Report Share Posted June 17, 2014 You can get liquid ptfe. The stuff I've used before is called t seal. Its a bit better for something small like a bleed screw. Quote Link to comment Share on other sites More sharing options...
Thebigjam101 Posted June 18, 2014 Author Report Share Posted June 18, 2014 You can get liquid ptfe. The stuff I've used before is called t seal. Its a bit better for something small like a bleed screw. sort of like thread lock? Quote Link to comment Share on other sites More sharing options...
Alex Dark Posted June 18, 2014 Report Share Posted June 18, 2014 Similar to thread lock. Ptfe should work fine, if not you can buy hydraulic sealant but if it got to that stage is probably scrap the body. Is the seat that the bleed screw locks against intact?Edit: that's a race line d, so seals on the blackface of the Allen bolt. A dowty washer would be best , or a small copper washer . Check the sealing faces for scratches. 2 Quote Link to comment Share on other sites More sharing options...
Thebigjam101 Posted June 18, 2014 Author Report Share Posted June 18, 2014 *update* put the ptfe tape on. It worked a treat! Did it on The space cylinder bleed screw too just in case. However, with a decent water bleed, It worked great for the first 3 hours of riding, left it for about 2, and suddenly my pistons are really lazy? They still move out the correct distance but take an age to return, so my levers useless for a good 3 seconds before I get pressure back. Should I have bled it with antifreeze mixed in? Or is there something else I'm missing?Slave* Quote Link to comment Share on other sites More sharing options...
trialsquirt Posted June 18, 2014 Report Share Posted June 18, 2014 Get some gt85 sprayed over the slaves and that fixes it Quote Link to comment Share on other sites More sharing options...
Thebigjam101 Posted June 18, 2014 Author Report Share Posted June 18, 2014 Get some gt85 sprayed over the slaves and that fixes it tried that, doesn't work the pistons are really slow to return or just don't at all Quote Link to comment Share on other sites More sharing options...
dann2707 Posted June 18, 2014 Report Share Posted June 18, 2014 Needs bleeding again. Quote Link to comment Share on other sites More sharing options...
harmertrials Posted June 18, 2014 Report Share Posted June 18, 2014 Is the lever returning perfectly? Snappy style Quote Link to comment Share on other sites More sharing options...
Thebigjam101 Posted June 18, 2014 Author Report Share Posted June 18, 2014 Is the lever returning perfectly? Snappy style no, doesn't return for about 3 seconds, then it becomes solid.Needs bleeding again. I don't understand, I gave to a perfect bleed at lunchtime, no air can get In, how is it managing this? It was fine for 3 hours then I left it for about 2.... Quote Link to comment Share on other sites More sharing options...
harmertrials Posted June 18, 2014 Report Share Posted June 18, 2014 It probably is the slaves, but it sounds more like a piston issue. Do you have any spare pistons or at least an o-ring? Quote Link to comment Share on other sites More sharing options...
Thebigjam101 Posted June 18, 2014 Author Report Share Posted June 18, 2014 No... I don't know anything about maguras I'm usually dual disc... Should I take it apart and go from there?It probably is the slaves, but it sounds more like a piston issue. Do you have any spare pistons or at least an o-ring? Quote Link to comment Share on other sites More sharing options...
harmertrials Posted June 18, 2014 Report Share Posted June 18, 2014 Remove the body from the hose and squeeze the lever, if the piston doesn't return or returns very slowly then that's your problem. Quote Link to comment Share on other sites More sharing options...
Thebigjam101 Posted June 21, 2014 Author Report Share Posted June 21, 2014 Remove the body from the hose and squeeze the lever, if the piston doesn't return or returns very slowly then that's your problem. right, haven't taken it apart yet as I was busy, but if it doesn't return does it need replacing? Quote Link to comment Share on other sites More sharing options...
tdubz Posted June 21, 2014 Report Share Posted June 21, 2014 Racing line metal piston should solve the issue of a lazy lever piston? On tarty/trials addict under rim brake spares Quote Link to comment Share on other sites More sharing options...
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