BRAKES 273
Calipers
REMOVAL AND OVERHAUL
1. With the vehicle securely raised and
its wheels removed, disconnect the front cal-
iper's brake hose at its support bracket and
die rear unit's line from the inside caliper.
2. Tape the open end of each line to pre
vent dirt from entering.
3. Pull the cotter pins, retaining pins, and
brake pads, and unbolt the caliper from its
mounting bracket.
4. Remove the two large bolts and split
the caliper case.
5. Remove the fluid transfer hole's O-
rings.
6. The pistons are retained by ring-like
boots. To remove them, fully depress the pis
tons and, with a screwdriver, lever the boots
from their seats. Remove the pistons, springs,
and seals, using air pressure if necessary.
7. Clean all parts with non-mineral based
solvent and compressed air, and replace the
rubber parts with those in the brake service
kit.
8. Inspect the piston bores for damage or
corrosion. Polish corroded bores with crocus
cloth and, if this is not enough, replace the
caliper. Replace all self-locking bolts.
9. Maintain the proper tolerances by re-
ferring to the following chart.
Caliper Piston-to-Bore
Clearance
1—
3
/
8
in. bore 1 —% in.
bore
10. Reverse the disassembly procedure to
reassemble. Lubricate parts with brake fluid.
NOTE:
Remember, when positioning the
piston seal on the piston, that it goes in the
groove nearest the pistons flat end with the
lap facing the largest end. If placement is
correct, the seal lips will be in the groove
and not extend over the groove's step. Bleed
the brake system after installation.
Disc
REMOVAL AND MAINTENANCE
Braking performance is greatly affected by the
disc run-out. Lateral run-out must not ex-
CABLE ASSY.
BRACKET CLEVIS
LEVER
1963-64 parking brake assembly
0.0035-0.009
0.0045-0.010
IEVER ASSY.
BOLT (
5
/u-
l8x%)
EXT. TOOTH I/WASHER
RETAINER
RETAINER
BOLT (Vn -
lBxl'/i)
SPACER
