How To Reset Hydraulic Brake Caliper Pistons With Park Tool PP-1.2
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- Опубліковано 8 вер 2024
- Check your brake pads. If they are contaminated most likely you will have less braking power. Cleaning rotors is okay but not brake pads. Center rotor between brake pads.
Remember when in school and you had that teacher who wouldnt verbally explain anything.
Also had that brick of a student who Couldn't understand the simplest demonstrations.
Also had that brick of a student who couldn't understand the simplest demonstrations
A picture is worth a thousand words!
@tommyd6142 It's a youtube short and he decided to do the work behind the title. Remember when you had a teacher's pet who refused to see any fault in the teacher?
👍great tips, i always reset the caliper pistons with the old knackered pads already inserted👍
Keep the important part of the video above the bottom where the overlayed text blocks it. Try again.
You should never use a screwdriver, it can damage the surface of the piston. A plastic tyre lever will do it best. 😉
He did not use a screw driver other than to point out the issue.
@@LemonySnicket-EUCsomeone clearly didn't finish watching the vid
That was a specific Park Tool(presumably) , used to exercise the pistons. I've used this tool with great success, on brand new brakes. No pads were damaged in this process.
A rubber coated handle on a pair of needle nose pliers worked great for me
I can't open them far enough even with a big screwdriver should I bleed my brakes or unscrew the valve at the top on handlebars and then try to open the pistons any help would be really appreciated please
Yes you can unscrew the bleed port at the top. Make sure you clean your pistons with some alcohol or water. Sometimes you gotta work the pistons at an angle to get them to go back. Make sure you push the pistons in evenly.
@@Henryisvegan thank you very much Henry
@@shemgresves6712 Let me know how it goes 👍
My disk brakes dont have enough space between the pads and causes the rotor to rub against the pads. I noticed this when I had recently cleaned them because they were making a howling noise. What do I do? Should I replace the whole thing?
It wont work on me, After i reset my pistons i press it again and then it close it wont back to normal
I have this same one how do I take the the break pads out do you have a video on that cause I’m new to mini bikes and trynna get into doing my own maintenance
More vids like this bro! Maybe with a couple titles
What do I do cuz it keeps slipping out even tho it’s in
Hydraulic brakes are a nightmare! Cable operated disc brakes are so much less of a pain in the ass
You are definitely right. I used to think hydraulic was better.
I don’t think so. Fine of maintained and not closed without a disc. I’m finding single piston mechanical piston tektros awkward...
Lol no
I agree, really annoying not being able to put bike upside down as well 🤬
So my brakes are 4 piston and i push them in one by one but then other pistons come out and i can never get them all in at once. Because of this i cant fit new brake pads in and even the old worn ones rub the rotor. Any help would be really appreciated.
Hey. Idk if you already fixed your issue but I think that’s because you might have too much oil in the system (if you have bled them with used pads installed perhaps), and the new, wider, pads need more space. Either use a syringe or flip the bike with the bleed port open and pump the brake a couple of times so a bit of oil comes out. Don’t forget to bleed them again once you have installed the new pads.
Disclaimer: this tip is intended for bikers who don’t have every tool necessary for the most by-the-book bleed and want a diy fix.
u have to bleed the caliper first. Brake fluid is what's pushing the other pistons out when u push one in. Bleed the brake first ... problem solved.
/bklyn 👑
put the srewdriver inside and put two hands to put them inside.
When I push one piston in, the other piston comes out. Do I do anything wrongly?
That’s kind of normal. When you push one in then the fluid travels to the other piston so one will jut out. Do you have Shimano brakes?
@@Henryisvegan it's Clarks Clout. I was pushing the pistons until the thumbs got sore with no effect - the pistons keep popping out
@@eugenystarostin5989 What you can try is to open the bleed port in the lever, reset your pistons, and excess fluid will come out of the bleed port. Just remember to close the bleed port before you press the brakes.
@eugenystarostin5989 Did this solve it for you?? I've got the same problem never changed pads before
@@Stompa1989 I ended up taking the bike to the workshop :)
My piston is grinded all the way down
Hey i could really use some help; what do i do once I've pushed it back into place but it won't stay?
On another comment here they suggested to the other guy to "Open the bleed port at the lever so that some of the excess oil comes out when you reset the pistons."
But I'm no expert, I've never done this job so I don't know what I'm talking about. Just copying an answer from them to another guy
@@LLF1234 turns out my setup was just broken and cheap chinese junk. Swapped to magura and no more problems :)
What I don't understand is this. After doing these operations, when I press the brake again, the part inside the caliper is still protruding out and not going in.
What is the solution to this?
@@mrcorona2093i got the problem. Have you found a solution???????
@@albert_1908 i have new nutt brake set
Everytime I push the pistons back they come back a few mm and it rubs the disk. How can I get it fixed?
Open the bleed port at the lever so that some of the excess oil comes out when you reset the pistons.
@@Henryisvegan thanks
I’m gonna try this now!
Mine are stuck in that position please help they don’t move when I tap my brake lever
When you press the brake lever all the way down does the lever touch the handlebar? Your brake may need a brake bleed and that’s why the pistons don’t move.
@@Henryisvegan yes my brake touches the handle bar and I just got new brake pads for my mtb thinking that would fix it but no so then I just bought a bleed kit and put a little bit of oil in my brakes and still nothing my pistons seem to be stuck so I’m confused because when I take my tire and brake pads off the pistons are stuck and don’t move when I hit the brake lever
@@Kasperr_-k How did you bleed the brake system? Give me more details. It sounds like the brake system was not bled correctly.
@@Henryisvegan I bought the bleed kit on Amazon and followed the tutorial that was with the product and it worked on my right brake it works way better now but my left brake not so much at all
@@Henryisvegan so I opened the thing on my brake where you put the funnel and screwed the funnel on and then I poured some fluid in and was squeezing my brake making bubbles with the hydraulic and it was going down but slowly and not a lot so at that point I tried the process on my right brake which went way better and worked great
That tool is for use to space the pads to push the the pistons back in. You’re not supposed to actually press the pistons back in directly with the tool, unless you want to break or chip your pistons..
Thanks, I just used this tool on my bike with the pads in place and caliber still on the bike. Worked perfectly. Super easy!!
Bad Camera angle. Cant hardly See whats going on
I can't get my brake pistons to retract. any suggestions?
Wipe the pistons down, spray alcohol on them and clean them. They could be dirty. It may also just need to be pushed in just right with a tool. Try using a tire lever (which may snap) or a 13mm wrench. Flat head screwdriver may work but be careful that you don’t damage your pistons too much.
mine is stucked up.. doesn't move at all
Copying and pasting another coment here that might help you:
Wipe the pistons down, spray alcohol on them and clean them. They could be dirty. It may also just need to be pushed in just right with a tool. Try using a tire lever (which may snap) or a 13mm wrench. Flat head screwdriver may work but be careful that you don’t damage your pistons too much.
Tnx tnx tnx ❤❤
A
I can't understand the language of screwdriver
Why is it so fkn hard to talk
Hahahaha appreciate the angry feedback. I’ll make some videos with my sultry voice.