Subaru 2001 IMPREZA Service Manual page 55

MASTER CYLINDER
BRAKE
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.
BR-54