just changed to new pads. took wheel out, pushed pistons back flush with casing, fitted new pads. wheel span fine.
but after braking a couple of times, the pads arent really going back flush, theyre staying put a bit and rubbing on the wheel. stopping it after a couple of revs.
i was under the impression, the k24s adjusted themselves, so is there nowt i can do?
if i opened the bleed screw a little and squeezed some fluid out, then tightened it before letting go of the lever would that help?
cheers
Might be worth cleaning around the pistons a bit in case they're sticking (I just use some isopropyl alcohol on a cotton wool bud then use another bud to put some dot fluid around the piston to lubricate it a bit). Failing that you could try realigning the caliper by loosening the mount bolts then squeezing the brakes on whilst tightening up the bolts
Edit - oh and I wouldn't let fluid out or you'll end up with spongy brakes that will need bleeding. Unless you also recently bled the brakes with the pistons not retracted then I can't see why an excess of fluid would suddenly be an issue.
Did you clean the pistons or just shove all the accumulated much from your rides into the seals?
😉
just investigated further, and looks like yes, its a sticky piston. one works fine the other doesnt, but once its out a bit, it doesnt go back.
ive had it out a few mm, cleaned it with disc brake cleaner, then a few drops of dot fluid, but still the same. mebbes needs servicing.
and yes, it probably has got all the accumulated sh*te back in the seals 🙁 wasnt really aware that i needed to clean em before stuffing them back, but i do now. dur 🙁
as it stands, ive put an old set of pads in again, and its rideable. and ill take another pair of worn pads in case i need another set. not really the way to go about things, but itll hopefully get me through tomorrow, then ill have to sort it properly.
thanks 🙂
Might need a new piston seal, might be able to rescue it by just cleaning it a few times, cycling the piston back and forth with plenty of DOT and then going and getting them proper hot.