Master Cylinder - Chrysler 1997 Stratus Convertible RHD Service Manual

BAR LEFT PORTIONING VALVE RIGHT TO REAR BRAKE LINE FRAME RAIL CODE REAR FRONT LABEL PRO- STAMP AND
RIGHT DRAFT
SHAFT
JX
DESCRIPTION AND OPERATION (Continued)
Fig. 8 Proportioning Valve Location For Antilock
Brake Equipped Vehicles
brake system hydraulic pressure above a preset level
(split point). Under light pedal application, the pro-
portioning valve allows full hydraulic pressure to be
applied to the rear brakes.
There are two different styles of proportioning
valve assemblies used in each vehicle. Due to differ-
ences in thread sizes, each proportioning valve has a
different part number. During any service procedures
identify valve assemblies by supplier part number
and or the bar code label and stamp identification
band (Fig. 9) or (Fig. 10). All vehicle brake systems
use a common calibration for the proportioning valve.
TO REAR BRAKES
Fig. 9 Proportioning Valve With Antilock Brakes
Fig. 10 Proportioning Valve Without Antilock Brakes
RIGHT REAR PROPORTION- HYDRAULIC TROL UNIT (HCU) ING VALVE O-RING SEAL TO MASTER CYLINDER OR HYDRAULIC CONTROL UNIT CON-
O–RING SEAL FROM MASTER CYLINDER
CHASSIS TUBES AND HOSES
The purpose of the chassis brake tubes and flex
hoses is to transfer the pressurized brake fluid devel-
oped by the master cylinder to the wheel brakes of
the vehicle. The chassis tubes are steel with a corro-
sion resistant coating applied to the external surfaces
and the flex hoses are made of reinforced rubber. The
rubber flex hoses allow for the movement of the vehi-
cles suspension.

MASTER CYLINDER

This vehicle uses 2 differently designed master cyl-
inder assemblies depending on whether the vehicle is
or is not equipped with antilock brakes.
Vehicles not equipped with ABS use a standard
compensating port master cylinder design, while
vehicles equipped with ABS use a center valve design
master cylinder.
On vehicles equipped with ABS brakes, the master
cylinder is a two outlet design. On vehicles not
equipped with ABS brakes, the master cylinder is a 4
outlet design. All vehicles are equipped with a mas-
ter cylinder having a bore diameter of 22.2 mm.
The master cylinder assembly (Fig. 11) consists of
the following components. The body of the master
cylinder is an anodized aluminum casting. It has a
machined bore to accept the master cylinder piston
MASTER POWER VACUUM BOOSTER MASTER FLUID RESERVOIR CYLINDER BRAKE BODY CYLINDER
and threaded ports with seats for hydraulic brake
line connections. The brake fluid reservoir of the
master cylinder assembly is made of a see through
polypropelene type plastic.
Fig. 11 Master Cylinder Assembly
On Non-ABS master cylinders, the primary outlet
ports (Fig. 12) supply hydraulic pressure to the right
front and left rear brakes. The secondary outlet ports
(Fig. 12) supply hydraulic pressure to the left front
and right rear brakes.
On ABS master cylinders, the primary outlet port
(Fig. 13) supplies hydraulic pressure to the right
BRAKES 5 - 5