neotropolis Posted October 31, 2008 Report Share Posted October 31, 2008 I have recently had to replace the crossover on my rear Magura HS33, but after bleeding multiple times I cannot get any pressure into the system. This is the guide that i followed exactly as it says: http://www.trials-forum.co.uk/wiki/Bleeding_Magura_brakes. Quote Link to comment Share on other sites More sharing options...
adam 94 Posted October 31, 2008 Report Share Posted October 31, 2008 Well get your local bike shop to do it, or get a new brake. Quote Link to comment Share on other sites More sharing options...
G-baby158 Posted October 31, 2008 Report Share Posted October 31, 2008 Well get your local bike shop to do it, or get a new brake.No dont get a new brake theres no need, your proberly bleeding it wrong, try bleeding it in the bath/bucket. Quote Link to comment Share on other sites More sharing options...
neotropolis Posted October 31, 2008 Author Report Share Posted October 31, 2008 No dont get a new brake theres no need, your proberly bleeding it wrong, try bleeding it in the bath/bucket.I dont see how I could be doing it wrong, could there be a leak do u think? Quote Link to comment Share on other sites More sharing options...
G-baby158 Posted October 31, 2008 Report Share Posted October 31, 2008 I dont see how I could be doing it wrong, could there be a leak do u think?If there was a leak you would be able to see water/oli coming out, have alook at all the ends to make sure there isn't, you could be bleeding it wrong, if you havn't got all the air out of the system that can cause the brake to have no power. Quote Link to comment Share on other sites More sharing options...
neotropolis Posted October 31, 2008 Author Report Share Posted October 31, 2008 If there was a leak you would be able to see water/oli coming out, have alook at all the ends to make sure there isn't, you could be bleeding it wrong, if you havn't got all the air out of the system that can cause the brake to have no power.How can i ensure that i get all the air out? Quote Link to comment Share on other sites More sharing options...
G-baby158 Posted October 31, 2008 Report Share Posted October 31, 2008 How can i ensure that i get all the air out?When your bleeding it you wont see any more bubbles. Quote Link to comment Share on other sites More sharing options...
neotropolis Posted October 31, 2008 Author Report Share Posted October 31, 2008 When your bleeding it you wont see any more bubbles.I didn't see ant bubbles anyway. Quote Link to comment Share on other sites More sharing options...
G-baby158 Posted October 31, 2008 Report Share Posted October 31, 2008 I didn't see ant bubbles anyway.Any bubbles ? dont you mean any bubbles, if there isn't any in the system theres a leak them, check the area's where the slaves join the hose's and at the lever. Quote Link to comment Share on other sites More sharing options...
neotropolis Posted October 31, 2008 Author Report Share Posted October 31, 2008 Any bubbles ? dont you mean any bubbles, if there isn't any in the system theres a leak them, check the area's where the slaves join the hose's and at the lever.OK, I will check tomorrow when it's light. Quote Link to comment Share on other sites More sharing options...
G-baby158 Posted October 31, 2008 Report Share Posted October 31, 2008 OK, I will check tomorrow when it's light.If that fails try bleeding it in the bath. Quote Link to comment Share on other sites More sharing options...
A.Baxter Posted October 31, 2008 Report Share Posted October 31, 2008 There may still b air in the hosing, or it may need to be cleaned, and when you are bleeding the brake make sure you hav the hole blocked when you are pumping the liquid through the whose, this could be one reason why it has no pressure in the break.Adam(Y) Quote Link to comment Share on other sites More sharing options...
Ben John-Hynes Posted October 31, 2008 Report Share Posted October 31, 2008 How can i ensure that i get all the air out?Mate, you're obviously doing it wrong somewhere along the line. Otherwise it would be working. Sometimes it takes more than 1 syringe load.There may still b air in the hosing, or it may need to be cleaned, and when you are bleeding the brake make sure you hav the hole blocked when you are pumping the liquid through the whose, this could be one reason why it has no pressure in the break.Adam(Y)Cover which hole? Quote Link to comment Share on other sites More sharing options...
G-baby158 Posted October 31, 2008 Report Share Posted October 31, 2008 Cover which hole?Yeah i would like to know that aswell. Quote Link to comment Share on other sites More sharing options...
Ben John-Hynes Posted October 31, 2008 Report Share Posted October 31, 2008 Surely he can't mean the bleed bolt?! Quote Link to comment Share on other sites More sharing options...
neotropolis Posted October 31, 2008 Author Report Share Posted October 31, 2008 Mate, you're obviously doing it wrong somewhere along the line. Otherwise it would be working. Sometimes it takes more than 1 syringe load.I have already put 2 syringe loads through. Do you think it might need more than that?Yeah i would like to know that aswell.As would I. Quote Link to comment Share on other sites More sharing options...
G-baby158 Posted October 31, 2008 Report Share Posted October 31, 2008 I have already put 2 syringe loads through. Do you think it might need more than that?As would I.If you've already put 2 through it then your bleeding it wrong, are you putting the bleed bolt back into the lever first before taking of the syringe ? Quote Link to comment Share on other sites More sharing options...
neotropolis Posted October 31, 2008 Author Report Share Posted October 31, 2008 If you've already put 2 through it then your bleeding it wrong, are you putting the bleed bolt back into the lever first before taking of the syringe ?Yes, ive been putting the bleed bolt back in the lever first. Quote Link to comment Share on other sites More sharing options...
G-baby158 Posted October 31, 2008 Report Share Posted October 31, 2008 Yes, ive been putting the bleed bolt back in the lever first.Well then you have got a leak or you are bleeding it wrong, like i said check for water around the ends when you pull the lever in, if there isn't any bath bleed it and see how that turns out. Quote Link to comment Share on other sites More sharing options...
neotropolis Posted October 31, 2008 Author Report Share Posted October 31, 2008 Well then you have got a leak or you are bleeding it wrong, like i said check for water around the ends when you pull the lever in, if there isn't any bath bleed it and see how that turns out.OK, will try this tomorrow and let you know how I get on. Quote Link to comment Share on other sites More sharing options...
Tim/Trialsin USA Posted November 1, 2008 Report Share Posted November 1, 2008 Even after bleeding god knows how many b'jillions of Maguras in the past 13 years, it still does not come out perfect every time.Here is a hint (not sure it is on the Magura manual or not). If you bled it correctly, more than likely most (if not all) the air causing the problem, is in the lever (master cylinder). To fix this without rebleeding for the 10th time:1. Stand bike up. Flick lever a bunch of times (moves air further toward bleed screw).2. Lay bike down so that brake in questions lever is closest to the ground (lever blade pointing toward ground, bleed bolt pointing toward sky).3. Undo bleed bolt and take it out. If you look down, more than likely the oil it not right up to the top. Pull the lever blade (SLOWLY! lest you want an eyeful of Magura oil) until the oil is forced to the top of the hole.4. Slowly release lever and drip oil in hole (keeping oil level with top). When lever is all the way released (and oil filling hole all the way to top).5. Replace bleed bolt6. Go ride.On really bad days it can take a couple times of this (remember to flick lever in between). I can tell you it is a hell of allot faster than complete re-bleed. Quote Link to comment Share on other sites More sharing options...
neotropolis Posted November 1, 2008 Author Report Share Posted November 1, 2008 Even after bleeding god knows how many b'jillions of Maguras in the past 13 years, it still does not come out perfect every time.Here is a hint (not sure it is on the Magura manual or not). If you bled it correctly, more than likely most (if not all) the air causing the problem, is in the lever (master cylinder). To fix this without rebleeding for the 10th time:1. Stand bike up. Flick lever a bunch of times (moves air further toward bleed screw).2. Lay bike down so that brake in questions lever is closest to the ground (lever blade pointing toward ground, bleed bolt pointing toward sky).3. Undo bleed bolt and take it out. If you look down, more than likely the oil it not right up to the top. Pull the lever blade (SLOWLY! lest you want an eyeful of Magura oil) until the oil is forced to the top of the hole.4. Slowly release lever and drip oil in hole (keeping oil level with top). When lever is all the way released (and oil filling hole all the way to top).5. Replace bleed bolt6. Go ride.On really bad days it can take a couple times of this (remember to flick lever in between). I can tell you it is a hell of allot faster than complete re-bleed.Ill definitely try this if it means not having to re-bleed the brakes. Quote Link to comment Share on other sites More sharing options...
neotropolis Posted November 1, 2008 Author Report Share Posted November 1, 2008 Just been out and had a look at it and i think it is leaking out of the lever. Quote Link to comment Share on other sites More sharing options...
G-baby158 Posted November 1, 2008 Report Share Posted November 1, 2008 Just been out and had a look at it and i think it is leaking out of the lever.Is the nut done up fully ? Quote Link to comment Share on other sites More sharing options...
neotropolis Posted November 1, 2008 Author Report Share Posted November 1, 2008 Is the nut done up fully ?Yes. i think its leaking from the cylinder. Quote Link to comment Share on other sites More sharing options...
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