Quote Originally Posted by Robo View Post
what is the replacement bolt in unit, your talking about
Haven't seen it yet, but I was told that you use a 10mm spanner to undo the brake line, and then 2 more 10mm nuts, and the whole piston unit comes out. Was told this by the mechanic who told me to get it fixed (safety check).

I also agree about using rubber grease. ever seen what happens to inner tube rubber if you use it as a seal for a petrol can etc. ?

I also agree with Robo that the black cake should clean off, and as long as the chrome is not scratched or pitted, the piston is re-useable.