trialsiain Posted March 16, 2013 Report Share Posted March 16, 2013 How come i suddenly cant get a good bleed with my 05 magura since i have put new slave on.. everything is tight and i could get really good responsive bleeds before i put it on. Thanks Quote Link to comment Share on other sites More sharing options...
BradJohnson Posted March 16, 2013 Report Share Posted March 16, 2013 lazy slave? Quote Link to comment Share on other sites More sharing options...
trialsiain Posted March 16, 2013 Author Report Share Posted March 16, 2013 nope they move really quickly when i adjust tpa up a bit Quote Link to comment Share on other sites More sharing options...
Blake Posted March 16, 2013 Report Share Posted March 16, 2013 How are you bleeding it? Quote Link to comment Share on other sites More sharing options...
Revolver Posted March 16, 2013 Report Share Posted March 16, 2013 Bleed fast and bleed slow. Bleed with a syringe. Quote Link to comment Share on other sites More sharing options...
trialsiain Posted March 16, 2013 Author Report Share Posted March 16, 2013 First I tried bath bleeding but then syrienge both have same outcome Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted March 17, 2013 Report Share Posted March 17, 2013 use 2 syringes and push the oil back and forth in the sytem,knock the hose with a screwdriver gently,then continue until no more bubbles appear Quote Link to comment Share on other sites More sharing options...
trialsiain Posted March 17, 2013 Author Report Share Posted March 17, 2013 I bled it 4 times this morning and the pads still didnt come out straight away and took like half a lever pull for them to do so. Quote Link to comment Share on other sites More sharing options...
Revolver Posted March 17, 2013 Report Share Posted March 17, 2013 Submerge the whole brake, fully done up, and squeeze it and see if there's air coming from anywhere. Squeeze the slave cylinders together with your other hand to get some decent pressure. Fast-and-slow always worked for me, even for completely empty brakes. Fill the syringe up almost all the way, and gently bleed the brake with the entire thing. Lock it all and fill the syringe back up, then repeat a few times squeezing the syringe pretty hard. There are lots of little opportunities for air to get in. If you're bath bleeding, if the brake comes out of the water while no bolts are in it, air will get in. Same applies for syringe bleeds but the syringe on its own can hold the pressure. Failing that, a double-syringe bleed might be good, because you can properly monitor the air coming out. Quote Link to comment Share on other sites More sharing options...
trialsiain Posted March 17, 2013 Author Report Share Posted March 17, 2013 Submerge the whole brake, fully done up, and squeeze it and see if there's air coming from anywhere. Squeeze the slave cylinders together with your other hand to get some decent pressure. Fast-and-slow always worked for me, even for completely empty brakes. Fill the syringe up almost all the way, and gently bleed the brake with the entire thing. Lock it all and fill the syringe back up, then repeat a few times squeezing the syringe pretty hard. There are lots of little opportunities for air to get in. If you're bath bleeding, if the brake comes out of the water while no bolts are in it, air will get in. Same applies for syringe bleeds but the syringe on its own can hold the pressure. Failing that, a double-syringe bleed might be good, because you can properly monitor the air coming out. ok but i dont get what you mean by fast and slow .. i just noticed there is a leak in my syringe would that cause anything at the top part that pushes down ? Quote Link to comment Share on other sites More sharing options...
SamKidney Posted March 17, 2013 Report Share Posted March 17, 2013 Sounds like you're being too fussy to be honest. Make sure your TPA is would all the way out, and your reach adjuster set where you want it to be. Bleed it until there are no air bubbles, even if you spend longer than you thinks needed. Just keep pumping water through it when submerged, knocking the hoses, lever body, slaves... making sure they're both at an angle where any air can easily escape etc... Screw in both bleed bolts while underwater, and then check to see if your pistons move immediately after you put the slightest pressure on the lever. If they do, there's no air. Fit it and ride. That's the method I've used for about 3-4 years now and my brakes have generally all felt spot on, ignoring the ones with any real issues. Quote Link to comment Share on other sites More sharing options...
trialsiain Posted March 17, 2013 Author Report Share Posted March 17, 2013 Sounds like you're being too fussy to be honest. Make sure your TPA is would all the way out, and your reach adjuster set where you want it to be. Bleed it until there are no air bubbles, even if you spend longer than you thinks needed. Just keep pumping water through it when submerged, knocking the hoses, lever body, slaves... making sure they're both at an angle where any air can easily escape etc... Screw in both bleed bolts while underwater, and then check to see if your pistons move immediately after you put the slightest pressure on the lever. If they do, there's no air. Fit it and ride. That's the method I've used for about 3-4 years now and my brakes have generally all felt spot on, ignoring the ones with any real issues. I dont think i am to be honest.. having the pads set close and the lever coming into bar nearly crushing fingers isnt the best setup ... but thanks for the tips anyway ill try again later. Quote Link to comment Share on other sites More sharing options...
Revolver Posted March 17, 2013 Report Share Posted March 17, 2013 A leaky syringe is bad! It might let air in. Fast and slow - how fast you push the water in. If you squeeze the syringe in quickly it should get stuff moving inside the brake more. Quote Link to comment Share on other sites More sharing options...
trialsiain Posted March 17, 2013 Author Report Share Posted March 17, 2013 A leaky syringe is bad! It might let air in. Fast and slow - how fast you push the water in. If you squeeze the syringe in quickly it should get stuff moving inside the brake more. It probably was the syringe, I have bled it underwater with the syringe but kept everything under and its good now .. Thanks everyone who gave advice. Quote Link to comment Share on other sites More sharing options...
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