Hope C2 leaking pistons

[Stinus]

i'm trying to fix an C2 disk brake.

All the seals have been replaced, in both caliber and lever but is still leaking from the pistons, there is a little bit of corrosion on one of the pistons, about 2x2mm but it not bad

Any idear what the problem can be?

 

[unkleGsif]

Any idear what the problem can be?

there is a little bit of corrosion on one of the pistons, about 2x2mm but it not bad

G

 

[Stinus]

Any idear what the problem can be?

there is a little bit of corrosion on one of the pistons, about 2x2mm but it not bad

G

was thinking the same thing..