Master Cylinder: Disassembly

Remove the straight pin and nipple.

Courtesy of SUBARU OF AMERICA, INC.
Remove the oil seal.

Courtesy of SUBARU OF AMERICA, INC.
Move the seat towards the rear.

Courtesy of SUBARU OF AMERICA, INC.
Remove the piston stop ring.
CAUTION: When removing the piston stop ring, be careful to prevent the rod, washer, piston and return spring from popping out.