In the haynes manual where it says to wind the piston back into the caliper, it gives a caution note in bold letters as follows:
Caution: Pushing back the piston causes a reverse-flow of fluid, which has been known to 'flip' the master cylinder rubber seals, resulting in a total loss of braking. To avoid this, clamp the caliper flexible hoses and open the bleed screw- as the piston is pushed back, the fluid can be directed into a suitable container using a hose attached to the bleed screw. Close the screw just before the piston is pushed fully back, to ensure no air enters the system.
I did this with a pair of mole grips and some cardboard to protect the hose, however my question is how do you do this if you have stainless steel braided hoses fitted? :scratch: