Bleeding the beast.
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Bleeding the beast.
I had to bleed the rear brake it has been getting too hot on our descents the rotor would get black gunk on it then it started getting mushy. so I bought a cheap bike lift kit but the hooks were more like a L then a hook so I did not trust them so I just wrapped the rope it around the frame. I wanted to lift the rear too so I didn't to have to bend down so far. spilled the bottle of fluid twice and made more then the usual mess. but got it lots of dark fluid. we really need to make sure the back does not overheat, the pics dont not show the black well but it was sure in the cup and line.
Last edited by fooferdoggie; 10-28-21 at 08:57 PM.
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No, bleeding brakes is not rocket science. But ... needing to bleed a brake (rear!) because it is overheating? Your work area does NOT inspire me with confidence. Just keep in mind that there are TWO people on that thing when you take it out in traffic. That is one job I would have left to a trained professional. Or at least if I did it myself I would be doing it by the book. Which you may have. But IDK ... didn't you have issues with brakes already and went to four piston calipers? What size are the rotors? Those are what I would have changed back when you had the caliper issue. Are they IceTech rotors or some other kind of heat shedding design? The front brake sees much harder use. It should be boiling hydraulic fluid as well. Does it? Maybe you are overusing the rear brake on descents? You don't have a drag brake so you have no choice but to make the front brake more of a player and take some of the burden on the rear. Just be careful and safe. It's dangerous enough out there with the crap that no one has any control over. Don't make matters worse and take on projects that have a direct impact on safety unless fully up to speed on the technology. I know, I know, I'm over a line, but some of your stories Foof ... just be careful.
#3
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No, bleeding brakes is not rocket science. But ... needing to bleed a brake (rear!) because it is overheating? Your work area does NOT inspire me with confidence. Just keep in mind that there are TWO people on that thing when you take it out in traffic. That is one job I would have left to a trained professional. Or at least if I did it myself I would be doing it by the book. Which you may have. But IDK ... didn't you have issues with brakes already and went to four piston calipers? What size are the rotors? Those are what I would have changed back when you had the caliper issue. Are they IceTech rotors or some other kind of heat shedding design? The front brake sees much harder use. It should be boiling hydraulic fluid as well. Does it? Maybe you are overusing the rear brake on descents? You don't have a drag brake so you have no choice but to make the front brake more of a player and take some of the burden on the rear. Just be careful and safe. It's dangerous enough out there with the crap that no one has any control over. Don't make matters worse and take on projects that have a direct impact on safety unless fully up to speed on the technology. I know, I know, I'm over a line, but some of your stories Foof ... just be careful.
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No, bleeding brakes is not rocket science. But ... needing to bleed a brake (rear!) because it is overheating? Your work area does NOT inspire me with confidence. Just keep in mind that there are TWO people on that thing when you take it out in traffic. That is one job I would have left to a trained professional. Or at least if I did it myself I would be doing it by the book. Which you may have. But IDK ... didn't you have issues with brakes already and went to four piston calipers? What size are the rotors? Those are what I would have changed back when you had the caliper issue. Are they IceTech rotors or some other kind of heat shedding design? The front brake sees much harder use. It should be boiling hydraulic fluid as well. Does it? Maybe you are overusing the rear brake on descents? You don't have a drag brake so you have no choice but to make the front brake more of a player and take some of the burden on the rear. Just be careful and safe. It's dangerous enough out there with the crap that no one has any control over. Don't make matters worse and take on projects that have a direct impact on safety unless fully up to speed on the technology. I know, I know, I'm over a line, but some of your stories Foof ... just be careful.
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I dont think I have overheated them as I have never lost any brake power. but I do use the back the most. wee go through pads pretty fast maybe 1200 miles on a set of metallic pads. last month we climbed 31250feet and came down at least that much too.
Last edited by fooferdoggie; 10-29-21 at 06:02 PM.
#6
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as for the cheap lift, yes, the hooks are worthless. You need to bend them into a hook shape but the steel is very hard. It took a bench vice and many whacks with a big hammer to forge them into shape. Works great now.
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there is a lot of slope on the hose so maybe just taking off the caliper will do the job. a coupe hooks and some piles will work much better. hopefully it will be awhile before it needs it again.. the front is a tiny bit mushy so maybe I will do it today. I wish the park tools kit had clips to hold the hose on. I found a cheap bleed kit with the clip so I bought it just to get that clip.