ryanthesailorman, on 16 May 2013 - 09:45 AM, said:
so i have a new question, i have been playing around with how im bleeding the brake and im getting diffrent results each time. ill squeeze the lever and open the bleed valve up. if i squeeze the lever all the way to the bar the close off the valve the brake feels mushy and feels like it has too much lever pull to fully lock the brake howver the wheel spins much more freely. but when i only bleed the brake halfway to the bar and quickly close the valve while squezing the lever the brake is solid but draggs much more. is there a sweet spot that i need to find? i know the manual
says the pull the lever all the way to the bar the close the valve but it feels weak when i do it this way. also how much do pretty new (4 or 5 rides) brake pads affect the drag and will it get better? thanks for the help guys.
I may have missed it, so I am going to ask anyway... have you cleaned and lubed the caliper mounting pins?
As far as the bleeding procedure goes... If you are getting different results using different bleeding procedures, that means you are letting air back in. There are several ways to solve this. You can attach a one way valve to the bleed port on the caliper, use a syringe to push fluid from the bottom to the top (obviously pushing all air with it) or learn how to use the lever and bleed port to not allow air back in during bleeding process. Your bleeding procedure should not effect how much drag you are getting.
your question about the pads and dragging issue... As long as the mount is square to the rotor (not bent or worn) the pads will not have any effect on the amount of drag you get, new or used.
An excessive friction issue in your type of brake system is only caused by a small number of things. Bent rotor, bent or worn mounting assembly for caliper or pad pins, sticking caliper mounting hardware or pad hardware, sticking caliper pistons, failing brake hose (collapsing), sticking master cylinder plunger (not returning to uncover the bleed port), miss adjusted operating lever (holding plunger in too far). There could be many reasons for any one of these problems, but this is the basics.