Hope tech brake bleed advice
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Cloverleaf
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Bits of deteriorated seals, usually from the lever rather than the caliper in my experience. That you're asking the question suggests you didn't!
Twozaskars
Retro Guru
If you were near me I'd have a look, anyone else in your area?
I didn't feel too well this afternoon so decided not to tackle this again. Will try later in the week when I get some time.
No black bits in the fluid noticed during the bleed. The lever feels fine, certainly moved fine while the system was drained of fluid prior to refilling. I've got a seal kit, I'm fact I've got a few new pistons so may resort to they. Pretty sure I did at least one if not nothing of the every when I originally got them but I've got a lot of these brakes and some a few so memory is a bit hazy on the topic. Certainly a few sets in boxes which I've fully serviced the levers.
It's just bugging me. I had a magura mt6 front that I couldn't get a good bleed on but eventually sorted it. Rear was one and done. Weird.
No black bits in the fluid noticed during the bleed. The lever feels fine, certainly moved fine while the system was drained of fluid prior to refilling. I've got a seal kit, I'm fact I've got a few new pistons so may resort to they. Pretty sure I did at least one if not nothing of the every when I originally got them but I've got a lot of these brakes and some a few so memory is a bit hazy on the topic. Certainly a few sets in boxes which I've fully serviced the levers.
It's just bugging me. I had a magura mt6 front that I couldn't get a good bleed on but eventually sorted it. Rear was one and done. Weird.
I've now got the front brake in a good place. Changed the diaphragms before another bleed, not that I needed to as the bleeds I'd got before seemed fine. Lever feel solid, pistons move fine.
Many minutes spent fettling the calliper alignment, swapped out the rotor for another, probably for psychological purposes more than anything. Still needed a few tweaks to true it but it's now spinning freely between the pads and braking solid.
Finally I can say the bike is now finished.
Many minutes spent fettling the calliper alignment, swapped out the rotor for another, probably for psychological purposes more than anything. Still needed a few tweaks to true it but it's now spinning freely between the pads and braking solid.
Finally I can say the bike is now finished.
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Thought I'd circle back with an update after thinking all was well.
After the latest bleed, post changing the calliper seals and pistons, all seemed to be well aside from.sds being closer to the disc than normal.
Over a week or so the pistons retracted less and less, dragging the pads on the rotor. Bummer.
After some kids vandalised the bike (nothing major, just pulled off all the bits like end plugs and other covers, I had to do some work so added sorting the brake to the list.
One piston seemed lazier than the other so took it out, cleaned and re-lubed with more hunters, put it back in, much nicer.
With the system devoid of fluid, the lever felt notchy when pulled so set about taking it apart to see what was what.
Bingo. The outer seal under the c-clup.thing had been put on backwards and wasn't fitting properly. There was a build up of white gunk where I'm guessing fluid and air etc were meeting and making the gunk.
Replaced the seal with a new one (inner seals were fine), refitted it all, re-bled and boom, brake works a treat.
Oh how I wish I'd done that check before. More frustrating as I'm pretty sure I rebuilt the other lever as it was sticky and did all the seals as the line had been removed so didn't have to worry about fluid etc.
Note to self. Check everything, don't assume all is well just because it looks good.
At least now my 12 year old has some nice brakes that work.
After the latest bleed, post changing the calliper seals and pistons, all seemed to be well aside from.sds being closer to the disc than normal.
Over a week or so the pistons retracted less and less, dragging the pads on the rotor. Bummer.
After some kids vandalised the bike (nothing major, just pulled off all the bits like end plugs and other covers, I had to do some work so added sorting the brake to the list.
One piston seemed lazier than the other so took it out, cleaned and re-lubed with more hunters, put it back in, much nicer.
With the system devoid of fluid, the lever felt notchy when pulled so set about taking it apart to see what was what.
Bingo. The outer seal under the c-clup.thing had been put on backwards and wasn't fitting properly. There was a build up of white gunk where I'm guessing fluid and air etc were meeting and making the gunk.
Replaced the seal with a new one (inner seals were fine), refitted it all, re-bled and boom, brake works a treat.
Oh how I wish I'd done that check before. More frustrating as I'm pretty sure I rebuilt the other lever as it was sticky and did all the seals as the line had been removed so didn't have to worry about fluid etc.
Note to self. Check everything, don't assume all is well just because it looks good.
At least now my 12 year old has some nice brakes that work.
