About to throw it in the bin :(

[zrlisa]

Hi everyone! Super new to the forum/biking community..

Bought a bike with tektro auriga hydraulic disk brakes, they were rubbing against the disk, so after a bit of advice from someone I know.. i decided to go at it myself and take it apart to adjust...
I couldnt take off the top and bottom bolts from the caliper, (they wouldn't budge) so i went straight for the screw holding the pads in!

Low n behold - I think ive totally messed it up... managed to get the pads and clip back in but the silver ring thats pushing the pads out has completely closed and I can't get the wheel back on..
Im screwed - send help!

 

[Heisenberg71]

I think you mean you have removed the pads then pumped the brake?
This pushes the piston (silver ring) out. Just gently press the piston back in. If it won't budge gently let the bleed nipple off slightly at the same time to release pressure. Remember to do it back up again!

If the piston has cockled over or come completely out you will need to disassemble and reassemble the caliper.

Hopefully this helps. However check out a YouTube video somewhere. There will be loads on servicing hydraulic brakes.

 

[Garry A]

I think you can push the piston back in with a flat headed screwdriver before putting the pad back in. Please don't throw it in the bin :-)

 

[vickster]

Take it to your friendly neighbourhood bike shop?

 

[bonsaibilly]

I think you mean you have removed the pads then pumped the brake?
This pushes the piston (silver ring) out. Just gently press the piston back in. If it won't budge gently let the bleed nipple off slightly at the same time to release pressure. Remember to do it back up again!

If the piston has cockled over or come completely out you will need to disassemble and reassemble the caliper.

Hopefully this helps. However check out a YouTube video somewhere. There will be loads on servicing hydraulic brakes.

That sounds very jargonistic without explaining the terminology! I know what you mean, I did the same as the OP. I used a flat headed screwdriver to gradually lever the pad back in. Bike shop will sort it for a few quid.

BB

 

[bonsaibilly]

Hi everyone! Super new to the forum/biking community..

Bought a bike with tektro auriga hydraulic disk brakes, they were rubbing against the disk, so after a bit of advice from someone I know.. i decided to go at it myself and take it apart to adjust...
I couldnt take off the top and bottom bolts from the caliper, (they wouldn't budge) so i went straight for the screw holding the pads in!

Low n behold - I think ive totally messed it up... managed to get the pads and clip back in but the silver ring thats pushing the pads out has completely closed and I can't get the wheel back on..
Im screwed - send help!

See other replies, and next time, if not work, STOP! WAIT! Get help

WD40 on the bolts would have loosened them enough to do it. BB

 

[Heisenberg71]

That sounds very jargonistic without explaining the terminology! I know what you mean, I did the same as the OP. I used a flat headed screwdriver to gradually lever the pad back in. Bike shop will sort it for a few quid.

BB

I was trying to help by explaining it in as simple terms as possible. Not sure what you mean by "jargonsitic". Which terminology do you think I need to explain? Nipple, cockle?

 

[Tojo]

As said earlier in the post push the pistons back so you can get the wheel back in then undo the caliper mounting bolts then apply the brake and whilst holding the brake on tighten the mounting bolts this will align the caliper properly and should hopefully cure the problem if not I would say the disk is not true.....

 

[Custom24]

I have cracked a ceramic piston using a screwdriver to push it back in. I would advise using a hard plastic tool instead, some tyre levers are strong enough

 

[Tojo]

I have cracked a ceramic piston using a screwdriver to push it back in. I would advise using a hard plastic tool instead, some tyre levers are strong enough

Good call Sorry I forgot to mention that earlier.....something non metallic is better......

 

[Guyincognito76]

When I got a hybrid with disc brakes mine were rubbing too. So I Googled the problem and read that it's normal at the beginning and that it soon stops after a few rides, which it has. Not much use to you now I realise

 

[Nibor]

I have cracked a ceramic piston using a screwdriver to push it back in. I would advise using a hard plastic tool instead, some tyre levers are strong enough

I use my park blue tyre levers they are bomb proof. If he has managed to get the pads in the pistons aren't too far out.

 

[Globalti]

It always helps to understand that brake pistons do not move in the seals when you apply the brake. The seals are too tight for that. When you apply hydraulic pressure the seals deform, allowing the pads to contact the disc then spring back clear. The pistons only creep through the seals very gradually as the pads wear.