How to Replace Brake Caliper Seals | Brake Caliper Rebuild | Caliper Piston Seal Replacement

When you’re with your brake caliper rebuild, you’ll need to bleed the brakes after you get the caliper installed. This process also varies little from unit to unit. Check out a brake bleed here:

VIDEO HIGHLIGHTS
Cleaning the caliper - 0:45
Removing the caliper pistons - 1:10
Removing the old caliper seals - 3:24
Replacing the caliper seals - 4:14
Replacing the caliper pistons - 4:45

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[Stripedbottom]

This works if you have a caliper that has been in use fairly recently. If you have one that has been dismantled after a malfunction or sitting around for a long time with the seals dried out or swollen etc., it might be not that easy. I had one where 5 bar and 8 bar of air pressure did absolutely nothing to the pistons, even after soaking overnight in WD-40; 12 bar moved the pistons a couple of millimeters, but that was all. In the end, I had to resort to refilling the caliper with brake fluid, then fitting it to an old motorcycle brake and pumping the pistons out with actual brake pressure. Had to pump them all the way out, too.

[rogermelling]

Made it look so easy. The next job for my old bike 👌

[maheshwarbhagan]

Love the work me want a work like that badly

[joeshow]

one of the best videos I have seen on you tube, NO MATTER the subject. .

[gordoncarnegie]

Good day, I need seals for my aftermarket caliper..Subaru legacy 🙏

[TrailVapor]

Did not show installation of external piston seal

[GamingwithKandA]

Ha. I had to use vice grips and a hammer to force my pistons out. Locked up so tight it was like they were once piece with the

[johnthake]

Hi john why do some people use brake fluid on the piston seals and some use red rubber seal grease

[michellehernandezhernandez]

Can you change one of the piston ring without taking a whole caliper out?

[derrenlambert]

I bought a disc brake conversion for my lambretta about 4 yrs ago, brand new, but it has sat about until now, I finished my rebuild and filled the the system with brake fluid, and its started leaking I immediately from the pistons, do you think the seals have dried out and gone hard in 4 yrs?.. I'm thinking new seals, but this whole disc brake is new with what was new seals... please help.

[formomanddad]

How do you measure a caliper puck, to find the correct o-rings needed? I cant find the same caliper on my trials bike anywhere.

[chuckiec]

Which dieection does dustv seal go. My o reilly nissan dust seal has notches on one side but no instructions

[AngelMoneraMartinez]

Hi, is there any trick when the seals seems to be bigger than old ones? I ordered two sets and I have terrible problems making them fit. I have done it in other bikes, and normally is a matter of a minute max per seal, but in my last project I spent 30 minutes to fit one and I still I did dont manage.

[windtube]

Do u sale piston rod seal and dust boot ?

[davidquick]

Hi i just changed the seals on my goldwing as I was replacing the pads, the only reason i did this was one of the dust seals had not been replaced properlyand was protruding out so as a precausion i thougth it was the rigth thing to do.upon replacing them with new seals on both pistons one piston leaked I then bought new pistons and seals and replaced them again and still one piston leaked. any thought on why this has happened as it didnt leak beforehand and the only reason i replaced in the first place was because the seal was not inplace correctly

[RikkertdePikkert]

Question, do you need to take the caliper complety off the bike? Which means to replace/refill the brake fluid? Or is it possible to leave the caliper connected to the brake hose? I probably already know the answer but just to be sure... :)

[leothelion]

Very different from my veloster turbo rear brake caliper seal

[madphill]

I used brake grease to lubricate the pistons and inner caliper cylinders (I know … didn’t follow instructions).

I’m having a horrible time getting pressure to return to the brake pedal now.

I’ve used a bleeder hand pump over and over and even tried gravity bleeding them through a submerged hose in a 20 oz bottle of clean fluid.

Still no brake pressure. Do you think my use of brake lubricant instead of brake fluid is the culprit?

[StormaLorda]

my new OEM seals don't bloody fit, pulling my hair out here

[roythearcher]

What kind of mechanic re-uses brake seals? Always use new seals whenever they're disturbed or removed. You can only get away with using the old seals if you haven't actually removed them from the caliper in the first place and if you're taking them out, you might as well replace them, right?
Re- using old seals is asking for trouble to put it mildly...