Anyone know anything about disc brakes?

You are reading a single comment by @Howard and its replies. Click here to read the full conversation.

•

cgg in reply to @mtsdw
Maybe you have sticky pistons. See if one of the pistons moves less than the other and/or sticks out more. You can clean your pistons by
- removing the pads
- getting the pistons as far out as is comfortable (take care that they’re both extending by an equal amount; that will not happen by itself if one is sticky; in which case you can block the one that’s getting out more until the other one catches up)
- cleaning the sides of the pistons with cotton earbuds and generous amounts of acetone (that’s what I use, maybe someone will suggest something better)
Then push the pistons back in and put back the pads and wheel.

•

Howard in reply to @cgg

cleaning the sides of the pistons with cotton earbuds and generous amounts of acetone (that’s what I use, maybe someone will suggest something better)

After cleaning I'd dab the sides of the piston in a small amount of whatever brake fluid the brake uses.

Push the pistons in as far as they will go before and after this procedure. Wipe up any fluid the piston displaces.

If you pop one out...you'll ruin your day :) If in doubt, use a bleed block.

About

Avatar for Howard @Howard started