1992 MAZDA 323 brake

OUTLINE M
OUTttNE
OUTLiNE OF CONSTRUCTION
l TKe construction and operation of the front and rear axles are basically the same as previous models.
l Because of the use of a high power engine, the following parts are modified to improve rigidity.
(I) Larger front and rear bearings are used.
(2) Larger front and rear knuckles are used.
(3) A five-stud wheel hub is used.
l An ice scraper is newly installed on the rear knuckle to prevent ice from building up on the brake caliper.
(Refer to page M-14.)
13EOMX-303
SPECIWCATIONS
Hem Speclficatlons
Front driveshaft
Joint type inside
Double offset joint
Outsrde Bell joint
Length of joint (between center of joint) Right
392 I15.4)
mm lrn)
Left 306 IO.831
Shaft drameter mm fin)
21.0 (0.83)
Rear driveshaft
Inside
Joint type Double offset joint
Outside 5ell joint
Length of joint (between center of joint) Right
519.5 [ 20.5 1
mm [in]
Left.
489.5 ( 19.3 )
Shaft diameter mm (in) 21.0 [O&3]
Joint shaft
I
Length of joint
Shaft diameter
Front axle
mm jin] 357.2 114.11
mm {in] 21.0 {0.83]
4
Bearing play axial direction mm tin)
0.05 IO.002 ]
I
Rear axle
Bearing play axial direction mm (inj
Rear dtfferentlal (viscous limited slip differential) 0.05 (0.002 1
Reduction aear Hypoid gear
Differentral gear
Drfferential ratio Straight bevel gear
3.909
Number of teeth Ring gear .
Drive binion aear
43
If
Fluid I Grade API Service GL-5
Above -t8*C (O*F) SAE 90
Viscosity .
Below -18*C i O*Fl SAE 8OW
1 I Capacity L I US qt, imp stl 1 0.65 !O.SS, 0.571
1
13EOMX-304
M-3

M FRONT AXLE
WHEEL HUB, STEERING KNUCKLE
RemovaI / Inspection I Installation
1. Remove in the order shown in the figure, referring to Removal Note.
2. Inspect all parts and repair or replace as necessary.
3. InstaH in the reverse order of removal, referring to Installation Note.
Caution
l Loosely tighten the shock absorber bolts. Lower the vehicle and tighten the bolts to the specified
torque with the vehicle unladen.
4. Adjust the front wheel alianment.
16-22 ]1.6-2.3, 12-161 I
19.0-l 2.0, 65-86.7 I
1. Wheel hub nut
2. Wheel and tire
3. Locknut
Removal Note . . . . . . .._.. . . . . . . . . . . . . . . . . . . . page M-7
installation Note .I.........,..,............ page M-7
4. Brake caliper assembly
Service . _. . . . . . . . . ,__. . . , , . ._. _. , , . . . , . ._ ._. . . . . . Section P
5. Disc plate
lnspectioti .~~*.......*~...,......,,,.....*~...~. Section P
6. ABS wheel speed sensor (if equipped)
7. Tie rod end
Removal Note . . . . . . .._.......... I . .._.....= page M-7
lnstallatiofi Note . . .._... _.__......,....... page M-7
M-6
8. Lower ball joint
9. Steering knuckle, wheel hub, and dust cover
Inspect-wheel hub for cracks and damage
Inspect knuckle spindle for cracks and
damage
Inspect dust cuver for damage and dis-
tortion
Disassembly I Inspection I
Assembly . ..C1..............~...,.....,.....
page M-8

FRONT AXLE M
13EOMX308
13EOMX-310
1
13EOMX-311
Removal note
Locknut
Caution
l Do not damage the drive shaft.
l Do not reuse the locknut.
1.
Raise the staked portion of the locknut using a chisel.
2. Lock the
hub by applying the brakes.
3. Remove the locknut.
Tie rod end
Caution i
l Do not damage the dust boot.
t
Losen the nut and disconnect the tie rod end bv using the
I
SST.
P
Installation note
Tie rod end
Caution
l Do not damage the dust boot.
tnstall the nut and secure it with the new cotter
Tightening torque:
43-56 N-m (4.3-5.8 kgf,m, 31-41 ft-lbf
Locknut
lnstail a new
locknut and stake it, as shown. pin.
Tightening torque: 236-318 N-m
f 24.0-32.5 kgfm, 174-235 ftelbf ]
M-7.

REAR AXLE
WHEEL HUB, KNUCKLE
Removal I Inspection / installation
1. Remove in the order shown in the figure, referring to
Removal Note. 2. Inspect all parts and repair or replace as necessary.
3. Install in the reverse order of removal, referring to Installation Note.
Caution
l Loosely tighten the shock absorber bolts. Lower the vehicle and tighten the bolts to the specified
torque with the vehicle unladen.
4. Adiust the rear wheel alianment.
16-22 1?.6-2.3, 12-16 I
7
IO.o-13.0,
66-66.7 1 1. Wheel and tire
2. Locknut
Removal Note..; . . . . . . . . , . . . . ,.......- -.. page M-f 3
Installation Note .._...,.,...._.__........ page M-13
I$ Brake caliper assembly
Service . . . . . . . . . . . ..e......._......... ,.,...,....
Section P
4. Disc plate
‘Service ..I....................__....... . . . . . . . . . Section P 5. Af3S wheel speed sensor (if equipped)
6. Wheel hub, knuckle
Disassembly I Inspect& /
Assem bty . . . . . . . ..I..........*..*.*...-... page M-14
Inspect wheel hub and knuckle for damage
or cracks
Inspect dust cover for damage or defor-
mation
M-12

REAR AXLE M
Removal note
Locknut
Caution
l Do not damage the drive shaft.
l Do not reuse the locknut.
I. Raise the staked portion of the tocknut using a chisel.
2. Lock the hub by applying the brakes.
3. Remove the locknut.
1 13EOMX-308
13EOMX-327 installation note
Locknut
Install a new locknut and stake it, as shown.
Tightening torque: 236-318 N-m
[ 24.0-32.5 kgfm, f 74-235 ftelbf
‘I

BRAKING SYSTEM
INDEX ..**.............=*..*..*....~.~............*.,.*...=.
P- 2
OUTLINE . . . . ..~....**.*...........*~...................***
1 P- 3
t il OUTLINE
OF CONSTRUCTION . . . . . . . s.e . . . .
l *..
P- 3
i SPECIFfCATIUNS
. . . . . . . . ..m...*.-..**......n.*.**...
P- 3
e , :
8 [ SERWCE /
SUPPLEMENTAL SERVICE INFORMATION s. P- 4
CONVENTIONAL BRAKE SYSTEM . . . .
l .m..m.s.m P-
5
PREPARATION
. ..* . . . . . . . . . . . . . . . . . . . l . . . . *.*..*.*..I P- 5
AIR BLEEDING (WITH ABS) . . . . . . l .* . . . . . . . . a . . . .
PA 6
POWER 8RAKE UNIT ..*.I..*....*..*....*...*..*..
P- 8
PROPORTJONING VALVE
l . . . . . . . . . . . . . . . . . l . . . . . .
P- 9
FRONT BRAKE (DISC)
. . . . ..**.*.........e.........
P-IO
DISC PAD
. . . . ..m*.m....*bL*m....*...............*......
P-l 1
DISC PLATE
..*..*..*.**..*..a.............*.-.*.....,.
P-12
CAMPER . . . ..m....I*.....*..m*..*......*......*....*...
P-l 2
REAR BRAKE (DISC)
. . . . . . . . . . . . . . . . . * . . . . . . . . l . . . . P-14
DISC PAD . . . . . . . . . . . . . . . . ..~.....................~.~...
P-l 5
DISC PLATE . . . . . . . . . . ..m.e..m....=...*...........*....
P-l 6
CALIPER . . . ..*..m.......I.......~m..~*..*.~......~...*.
P-97
13EOPX-301

INDEX
. WfTHOUT ABS
WITH ASS
‘MVSS 1 t6, DOT-3
.
1. Power brake unit
tnspection . . . . . . . . . . . . . . . . . . . . . . . .._......... 6. Catiper
page P- 8
Disassembly / tnspection I
2. Proportioning valve
tnspection . . . . . . .._..... . . . . . . . . . . . . . . . . . . . . . Assembly
P- . . . . . . . . . . . . ..I............I.....I page P-12
9
3. Front brake (disc) page
7. Rear brake (disc)
tnspection (on-vehicle). . . . . . . . . . . . . . . . page hspechn (on-vehicle) . . . . . . . . . . . . . . . . page P-l 4
P- IO
Removai / tnspection I 8. Disc pad t nstattation Replacement
page P-to 9. Disc plate ............I..r.... 1 . . . . . . . ~_. page P-15 .
. ..t..I...-.......-..l.._*.......
4. Disc pad
Replacem& Inspection . . . . . , . . . . . .
. . . . . ..a. ..I......,,,..
. . ..I.....-............-...,...
5. Disc piate page P-11
IO. Caliper page P-16
Inspection . . . . . . ._. ._. ._. __. . . ._. page P-l 2 Disassembly I t nspection I
Assembly . . . . . . ..I........................I page P-l 7
P-2 --
OUTL OlJTLlN
l The D
l HOWO
l Vehicl SPECIFI
Front dis:
Rear disc I
Braking for4
Brake. fluic:
Parking bra

OUTLlNE P
OUTLfNE
OUTLINE OF CONSTRUCTION
l The brake system remains similar to that of the previous model. l However, because all new models use a higher-horsepower engine, the brake system is enlarged as a whole.
l Vehicles without ABS use a portless-type master cylinder
13EOPX-303
SPECIFICATIONS
Brake pedal
Master cylinder
Front drsc brake
Rear disc brake
Power brake unit
Braking force control device
Brake fluid
Parking brake Item Specification
Type Suspended
I
PedaJ lever ratio 4.1
Max. stroke mm [in] 140 j5.511
I,
Type Tandem
Cylinder inner diameter mm {in] Without ABS: 25.4 j 1 .UO ]
With ABS: 23.8 to.941 3-
Type Ventilated disc ?
Cylinder bore mm [in)
57.2 12.253
Pad dimensions (area x thickness)
mm2 {rn2) xmm [In) 5,200 (8.OSl x 10 (0.39)
Disc plate dimensions mm (in]
(outer diameter x thickness) 274x24 (10.79x0.94)
Type Solid disc
Cylinder bore mm Jon]
34.9 j 1.37 ]
Pad dimensions (area x thrckness)
mm’ (in21 xmm [in) 3,200 I4.961 x8 (0.31)
DISC plate dimensions mm t,n]
(outer diameter x thickness) 280x10 (tl.02xu.39]
il
Type Without ABS: Vacuum multIplier
With ABS: Hydraulrc muttiplier
Diameter mm Iln]
(without ABS) 188.4 17.42) +215.2 t8.47)
We Without ABS: Dual proportioning valve
With ASS: Proportioning valve
FMVSS 116, DOT-3, SAE J1703
Mechanical twGrear-wheel control
Type
Operation system Center lever
13EOPX.304 t