Brucey wrote:the fluid must either have been leaking out altogether (obvious; makes a mess) or via an 'internal leak' past the seal in the MC, back into the reservoir. If the latter it means that there is a nick in the MC bore/seal or perhaps that there is some crud in the system. If the latter, the brake is faulty, but not in a terminally dangerous way (yet.....). Provided the leak doesn't get any worse the brake can be pumped to give some braking action, but there is no guarantee that it will stay that way.
cheers
Thanks - I was thinking leakage past MC seal. Is it fairly easy to strip and check seals/bore?