01-05-15, 10:42 PM
As you've removed calliper already make sure bleed nipple is done up get one of these (red plastic one)http://www.ebay.co.uk/itm/Ball-Football-...3f4bd0505d
Now this is the tricky bit & painful if you trap your fingers between the pistons, try to remove only one or two pistons at a time on one side of the calliper, the pistons must be held in except the one/ones you want to remove (not with your fingers you've been warned) now using the above type adaptor on a foot pump place the adaptor into the hole where the brake hose was attached & operate the pump this should push the piston or pistons out with a bang, don't be tempted to pull it out.
With them out clean bores remove & fit new seals apply smear of brake fluid to lips of seals & refit pistons squarely into bore push them right in then repeat sequence on the other pistons until all replaced.
Now this is the tricky bit & painful if you trap your fingers between the pistons, try to remove only one or two pistons at a time on one side of the calliper, the pistons must be held in except the one/ones you want to remove (not with your fingers you've been warned) now using the above type adaptor on a foot pump place the adaptor into the hole where the brake hose was attached & operate the pump this should push the piston or pistons out with a bang, don't be tempted to pull it out.
With them out clean bores remove & fit new seals apply smear of brake fluid to lips of seals & refit pistons squarely into bore push them right in then repeat sequence on the other pistons until all replaced.