Subaru Legacy 2004 Service Manual page 3241

9) Ensure that the inner wall of master cylinder, and
piston assembly are free of dirt when assembling.
Install the primary piston assembly and secondary
piston assembly, while taking care not to damage
the master cylinder inner wall.
10) With pushing-in the primary piston, install the
cylinder pin.
11) With pushing-in the primary piston, install the
C-ring to groove using pliers.
CAUTION:
Ensure the secure installation.
12) Install the seal to reservoir tank.
(1) Seal
13) Install the reservoir tank to master cylinder, and
secure with pin.
14) Replace the O-ring for the master cylinder with
a new one.
(1) Primary piston
(2) O-ring
(3) Do not install the O-ring on this groove.
Master Cylinder
BR-00169
(1) BR-00072
(3)
(2)
(1)
BR-00363
D: INSPECTION
Inspect for oil leakage from the master cylinder.
NOTE:
After replacing piston kit; when the oil leakage is
found without damaging or scratching the inside of
cylinder, wear of master cylinder inner wall may be
the cause. In this case, replace the master cylinder
as assembly.
BR-31
BRAKE