Subaru IMPREZA 2002 Service Manual page 407

MASTER CYLINDER
I
BRAKE
D: ASSEMBLY
1. PRECAUTIONS FOR ASSEMBLING
1) When assembling, be sure to use recommended
brake fluid.
2) Ensure that the inside wall of cylinder, pistons,
and piston cups are free from dirt when assem-
bling.
3) Be extremely careful not to damage, scratch, or
dent cylinder inside wall, pistons, and piston cups.
4) Do not drop the parts. Never attempt to use any
part that has been dropped accidentally.
2.
ASSEMBLING PROCEDURE
1) Assembling piston assembly:
Apply recommended brake fluid to inside wall of
cylinder, and to outer surface of piston assembly,
and install the piston assemblies carefully into cyl-
inder.
2) Assembling cylinder pin:
3) Press the pawl and install the piston retainer into
the master cylinder.
E: INSPECTION
If any damage, deformation, wear, swelling, rust,
and other faults are found on the primary piston as-
sembly, secondary piston assembly, supply valve
stopper, or gasket, replace the faulty part.
CAUTION:
The primary and secondary pistons must be
replaced as complete assemblies.
The service limit of the clearance between
each piston and the master cylinder inner dia.
is 0.11 mm (0.0043 in).
When handling parts, be extremely careful
not to damage or scratch the parts, or let any
foreign matter get on them.
4) Install the seal to reservoir tank.
(1)
Seal
5) Install the pin with drift pins which secures the
reservoir tank to master cylinder.
BR-37