Bleeding disc brakes

Unknown
edited December 1969 in Workshop
Can anyone advise on the correct method to bleed the front disc brake on a MTB ?

The brakes used to work great , the smallest lever movement and they were on, stopped the bike on its nose. Then the piston seized after not having used the bike for a while, I freed the piston off and tried bleeding the brakes but they are now way below what they used to be like.

There is a bleed nipple at the caliper and a tiny grub screw at the reservoir on the lever. I tried bleeding them in the way I'd do a car, pump the pedal, hold it down, release the brake bleed nipple and retighten. I've been advised tha tI should be injecting the brake fluid through the bleed nipple of the brake caliper.

Does anyone have a method they can advise , and also what the small grub / bleed screw is for in the reservoir at the lever ?

Thanks.

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Comments

  • I think it'll depend on the type of brakes you've got Commuter, as well as the brand. Can you tell us what you're using?