Mazda 1990 323 Workshop Manual Supplement page 537

OUTLINE
OUTLINE
L--
OUTLINE OF CONSTRUCTION
The braking system is mostly unchanged however, the dual proportioning valve is changed on 4-wheel drive
models. Other parts are basically the same as the previous models.
03UOPX-803
SPEClFlCATlUNS
Item
SMTX
4ATX
1
.-
Brake
pedal
Type
Pedal lever ratio
Suspended
4.2
1 Maximum stroke mm (In) 1 131 (5.16)
I
Master
cylinder
Type
Cylinder bore mm (in)
Tandem (with level sensor)
22.22 (0.875)
Power
brake unit
Type
Diameter mm (in)
Single diaphragm
214 (8.43) 239 (9.41)
Type
Ventilated disc
Cylinder bore
mm (in) I 53.97 (2.12)
I
Front disc
brake
Pad dimensions
(Area x Thickness)
mm2 x mm
(in2 x in)
4,300 (6.66) x 10 (0.39)
Disc plate dimensions
(Outer
diameter x Thickness)
Type
mm (in)
257 x 22 (10.12 x 0.87)
Solid disc
Cylinder bore mm (in)
30.2 (I. 19)
I
Rear disc
brake
Pad dimensions
(Area x Thickness)
I
mm2 x mm
(in2 x in)
2,600 (4.03) x 7.5 (0.30)
Disc plate dimensions
(Outer diameter x Thickness)
mm x in
251 x 9 (9.88 x 0.35)
Waking force control device
Parking brake
Dual proportioning valve
Center lever (Mechanical, two rear brakes)
Brake fluid
I
FMVSS 116: DOT-3 SAE: J 1703
I
P-3