MAZDA 323 1992 Suplement Owners Manual

I
J3
MANUAL TRANSAXLE AND
TRANSFER UNIT (G25MX-R)
:r
Y
OUTLINE .I.,..*..*..........................*..........* J3- 2
OUTLINE OF CONSTRUCTION . . . . . . n . . . . . . . l . 5% 2 I
SPECIFICATIONS
..m . . . . . . . l .,......... *.* .,........ J3- 2
13EOJ3-301
3

OUTLCNE
OUTLDJE OF CONSTRUCTION
. The 323 GT-R is added to the 323 BP DOHC turbo model lineup.
l All GT-R modek are equpped with the G25MX-R (GSMX-R) manual transaxle and transfer unit.
l The transaxle and transfer unit is the same as in the 323 BP DOt-tC turbo models, except that the speedo-
meter gear ratio is changed.
Note
l Transaxk code is as shown.
G25MX-R
--r--r T
13EOJ3-302
SPECIFtCATIONS
Transaxle and Transfer Unit
Item
Transaxte control
Synchromesh system
Gear ratio Model/Engine
Forward
Reverse
1 st
2nd
3rd
4th
1 5th
Reverse
FInal gear rat10 I
Speedometer gear ratio f
Type
Number of rrng Outer
gear teeth
Inner
Center diff erentlal Number of plnion Outer
gear teetn
Inner
Numbef of sun Pinion gear side
gear teeth
idler gear side
Number of idler gear teeth
Grade
Oh Vtscosity All-season
Above -18OC { O°F 1
Capacity t ( LB qt, Imp qtl 323 GT-R
0.717 I Other
3.166 323 4WD
BP DOHC turbo
Floor shift
Synch romesh
Setecttve slrdrng and synchromesh
3.454
1.833
I.310
0.970
4.214
1.045
I 1 .OUU
Pfanetary carrier
59
I
75
14
14
43
43
37
API service U-4
ATF Dexron@II or M-III
SAE 75W-90
2.6 (2.7, 2.2)
13EOJ3-303
Transfer Carrier
Number
Orl of
- teeth
Grade
Viscosity
CaDacitv Rung gear
Pinron gear
Above -18OC fO°F]
Below -t8OC I PF 1
L I US at. imn at 1 37
31
API service ‘Gt-5
SAE 90
SAE BOW
0 5 10.53. 0.44 t
J3-2 ._

FRONT AND REAR AXLES
INDEX ..*** . . . . . l . . . ...* . . . . . . . ..**...I* . . . . . .*..*.* . . . . . . . M- 2
1 FEATURES 1
OUTIJNE .................................................
M- 3
OUTLINE Of CONSTRUCTION
................. M- 3
SPECIFICATIONS ....................................
M- 3 t
SUPPLEMENTAL SERVICE INFORMATION.. M- 4
FRONT AXLE
l ,..,..,..............,.....*.............. M- 5
PREPARATION . . . . . . . . ..*.*...........m..........*... M- 5
WHEEL HUB, STEERING KNUCKLE . . . ..I.... M- 6
REAR AXLE *...............*............................ M-l 1
PREPARATION
l . . . . ..*..*...................*..*..... M-l 1
WHEEL HUB, KNUCKLE . . . . . . . . . . . . . . . . . . . . . . . . .
M-12
)I
13EOMX.301
q

INDEX
13EOMX-302
1, Front axle
2. Rear axle
Wheel hub, steering knuckle
Wheel hub, knuckle
Removal I Inspection I
Removal I Inspection I
Installation
..1*.,..*............*......*... page M- 6
Installation . . . . . . . . . . . . . . , . . . . . . . . . . , , . ..-.
Disassembly ! Inspection I
Disassembly / lrispection I p&ge M-l 2
Assembly
. . . . . . . . . . . . . . . . . . . . . . . . . . . . ..I.. page M- 8
Assembly ,..........................,..... page M-l 4
M-2
.
SPEC
Joint
--
Lengt
SE”
--
Rear
--
Joint
--
Lengt
-e
Shak
--
Johi
-m
tengt
--
Shat:
Front
I3eari
&z
--
Bear jr --
Rear
Redrll -- Difl et-t
Di#ert
Numt

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 SUPPLEMENTAL SERVICE INFORMATION
SUPPLEMENTAL SERVICE INFORMATION
The foIlowIng points in this section are changed in comparison with Mazda 323 Workshop Manuals
(1206-f O-89F) and (1229-l O-89L).
Front axle
l Removal I Inspection I Installation
l Disassembly I Inspection / Assembly
Rear axle
l Removal / Inspection I Installation l Disassembly / Inspection I Assembly
13EOMX-305
t
,
c
.
c!
M-4
.
r&
-s
FRC
PREF
SST
-m
49 0’
Pulle
--
49 Gl
Atkd
(Part
49 Gc
--
49 FC
I n.stail beam
--
49 F3
Attact
:Part
t 49 FO
--
49 Frl
4ttac P 58 8 : Part < $9 Fcl,
--
a9 G3
nstallt

FRONT AXLE M
FRONT AXLE
PREPARATION
SST -
Puller, ball joint Puller, wheel hub
49 GO33 1Al
Puller, wheel hub
49 F027 005
49 FO27 009
Attachment
68 & 77 installation of dust
tnstaller, oil seal
Installer, oil seal 49 HO27 002
Remover, bearing
M-5

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.

M FRONT AXLE
Disassembly / Inspection / Assembly
1 I Disassemble in the order shown in the figure, referring to Disassembly Note.
2. Inspect all parts and repair or replace as necessary.
3. Assemble in the reverse
order of disassemblv. referring to Assembly Note.
13EOMX-312
1 Oil. seal 5. Dust cover
Assembly Note . . . . . . . . . . . . . . . . . . . . . . . . . . page M-l 0
2. Front wheel hub assembly Disassembly Note.. .,.._ 1 . . . . . . . . . . . . . . page M-
9
Disassembly Note I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Assembly Note . . . . 1 . . . . . . . . . . . . . . . . . . . . . M-10
below
Assembly Note .......,.II.,...,...I..... page M-l 0
3. Retaining ring
4. Wheel bearing
Disassembly Note.. . . . .,=.............. page M- 9
Assembly Note . . , . . . . . . . . . . . . . . . . , . . . . . . page M-l 0 6. Steering knuckle page
7. Hub bolt
Disassembly Note . . . . . . . . . , ..,,..-...., page M- 9
Assembly Note .........I..,............. page M- 9
c I
13EOMX-313
r
L 1 l3EOMX 314 M-8
Disassembly note
Front wheel hub assembly
1. Remove the front wheel hub assembly by using the SST.
2. Make an opening between the wheel hub and the bearing
race to allow for use of the SST.