Master Cylinder; Pushrod Clearance Adjustment; Inspection/Disassembly - Honda CR-V 1997 Service Manual

Master Cylinder
Inspection/Disassembly
CAUTION: Do not spill brake fluid on the vehicle; it may
damage the paint; if brake fluid does contact the paint,
wash it off immediately with water.
NOTE:
• Before reassembling, check that all parts are free of
dust and other foreign particles.
• Do not try to disassemble the master cylinder assem-
bly.
Replace the master
cylinder assembly with a new
part
if
necessary.
• Make sure no dirt or other foreign matter is allowed
to contaminate the brake fluid.
RESERVOIR SEAL
Check for damage and
deterioration.
~
RESERVOIR CAP
Check for blockage
of vent holes.
W-
STRAINER
Remove accumulated
o
sediment.
LJ
RESERVOIR
Check for damage.
ROD SEAL
Replace.
SILICONE GREASE
Check bore for wear, rust and damage.
19-14
Pushrod Clearance Adjustment
NOTE: Master cylinder pushrod-to-piston clearance must
be checked and adjustments made, if necessary, before
installing the master cylinder.
1. Set the special tool on the master cylinder body;
push in the center shaft until the top of it contacts
the end of the secondary piston by turning the ad-
justing nut.
MASTER CYLINDER
PUSH ROD ADJUSTMENT GAUGE
07JAG - SD40100
CENTER
SHAFT
ADJUSTING NUT
2. Without disturbing the center shaft's position, in-
stall the special tool upside down on the booster.
3. Install the master cylinder nuts, and tighten them to
the specified torque.
4. Connect the booster in-line with a vacuum gauge 0-
101 kPa (0 - 760 mmHg, 30 in Hg) to the booster's
engine vacuum supply, and maintain an engine
speed that will deliver 66 kPa (500 mmHg, 20 in Hg)
vacuum.
5. With a feeler gauge, measure the clearance between
the gauge body and the adjusting nut as shown.
Clearance: 0 - 0.4 mm (0 - 0.02 inl
FEELER GAUGE
ADJUSTING NUT
VACUUM GAUGE
(Commercially available)
0-101 kPa
(0 - 760 mm Hg, 30 in Hg)
MASTER CYLINDER NUT
15 N'm 11.5 kgf·m, lllbf.ft,