Wheel Cylinder Rear Drum Brake; Cleaning And Inspection; Front Disc Brake Component Inspection; Rear Drum Brakes - Chrysler Stratus RHD 1997 Interactive Electronic Service Manual

5 - 68 BRAKES
DISASSEMBLY AND ASSEMBLY (Continued)
(9) Install brake pads. See Installing Brake Pads
in the Brake Pad Service Procedures section of this
manual.
(10) Before installing caliper assembly on vehicle,
inspect brake rotor. If any conditions as described in
Checking Brake Rotor for Runout and Thickness are
present the rotor, must be replaced or refaced. If the
rotor does not require any servicing, install caliper
assembly.
(11) Install brake hose onto caliper using banjo
bolt. Torque the brake hose to caliper assembly banjo
bolt to 33 N·m (24 ft. lbs.). New seal washers
MUST always be used when installing brake
hose to caliper.
(12) Bleed the brake system (see Bleeding Brake
System).

WHEEL CYLINDER REAR DRUM BRAKE

DISASSEMBLE
To disassemble the wheel cylinders, proceed as fol-
lows:
(1) Pry boots away from cylinders and remove (Fig.
177).
(2) Press IN on one piston to force out opposite
piston, cup and spring (Fig. 177). Then using a soft
tool such as a dowel rod, press out the cup and piston
that remain in the wheel cylinder.
(3) Wash wheel cylinder, pistons, and spring (Fig.
177) in clean brake fluid or alcohol; (DO NOT USE
ANY PETROLEUM BASE SOLVENTS) clean thor-
oughly and blow dry with compressed air. Inspect cyl-
inder bore and piston for scoring and pitting. (Do not
use a rag as lint from the rag will stick to bore sur-
faces.)
(4) Wheel cylinder bores and pistons that are
badly scored or pitted should be replaced. Cylinder
walls that have light scratches, or show signs of cor-
rosion, can usually be cleaned with crocus cloth,
using a circular motion. Black stains on the cylinder
walls are caused by piston cups and will not impair
operation of cylinder.
ASSEMBLE
Before assembling the pistons and new cups in the
wheel cylinders, dip them in clean brake fluid. If the
boots are deteriorated, cracked or do not fit tightly on
the pistons or the cylinder casting, install new boots.
(1) Coat cylinder bore with clean brake fluid.
(2) Lightly coat the sealing lip and outer surfaces
of the wheel cylinder cups with Mopar Protect-A-Cup
Lubricant.
(3) Install expansion spring with cup expanders in
cylinder. Install cups in each end of cylinder with
open end of cups facing each other (Fig. 177).
(4) Install piston in each end of cylinder having
the flat face of each piston contacting the flat face of
each cup, already installed (Fig. 177).
(5) Install a boot over each end of cylinder (Fig.
177). Be careful not to damage boot during
installation.

CLEANING AND INSPECTION

FRONT DISC BRAKE COMPONENT INSPECTION

BRAKE PAD LINING WEAR
If a visual inspection does not adequately deter-
mine the condition of the front disc brake shoe lining,
a physical check will be necessary. To check the
amount of brake shoe lining wear, remove the wheel
and tire assemblies, and the calipers.
Remove the front brake shoes. (See Brake Shoe
Removal paragraph).
Combined front brake shoe thickness should be
measured at the thinnest part of the assembly.
When a set of brake shoes are worn to a total
thickness of approximately 9.0 mm (3/8 inch) they
should be replaced.
Replace both brake shoes (inboard and out-
board) on both front sides of the vehicle.
If the front disc brake shoes do not require replace-
ment, reinstall, the brake shoes making sure each
brake shoe is returned to the original position on the
vehicle it was removed from. (See Brake Pad Instal-
lation).
CALIPER INSPECTION
Check caliper for piston seal leaks (brake fluid in
and around boot area and inboard lining) and for any
ruptures of the piston dust boot. If boot is damaged,
or fluid leak is visible, disassemble caliper and
install a new seal and boot, (and piston if scored).
Refer to Caliper Disassembly And Re-Assembly Pro-
cedures in Disc Brake Caliper Service in this section
of the service manual.
Check the caliper dust boot and caliper pin bush-
ings to determine if they are in good condition.
Replace if they are damaged, dry, or found to be brit-
tle. Refer to Guide Pin Bushing Service in Disc
Brake Caliper Service in this section of the service
manual.

REAR DRUM BRAKES

Clean metal portion of brake shoes. Check to see if
shoes are bent.
Lining should show contact across entire width and
from heel to toe, otherwise replace.
Measure the combined thickness of the leading and
trailing brake shoe and lining (Fig. 178). The lining
used on the leading and trailing brake shoes of this
JA