1990 MITSUBISHI ECLIPSE Service Manual

21-l
k
TRANSAXLE
‘TORQUE CONVERTE R....................................22
TRANSAXLZ MECHANIS M............................ 23
EndClutch<.................................................. 27
Front Clutch’.................................................... 25
KickdownBrake............................................ 28
Low-reverse Brake........................................30
One-way Clutch............................................ 31
CObROL................................ 15I
VISCOUS COUPLING (VCU). . . . . . . . . . . . . . . . . . . . . . . . 12

21-2 MANUAL TRANSAXLE

GENERAL INFORMATION
We
Gear ratio
(34131)
3.941 (67/l 7)
29f36
1.8 (1.9)
o 3.166.
(29f24)
3.437 (55/l 6)
29f36
2.2 (2.3)
4

_-. ---MANUAL TRANSAXLE
<2WD> - General Information21-3SECTIONAL VIEW
:5M22 (4663 Engine)
Clutch housing
Bear‘Ing retainer
2nd speed gear
1st speedgear
3rd speed gear
3rd-4th speed synchronizer assembly4th speed gear5th speed gear5th speed
/synchronizer
assembly
ii+-Rear cover
Reverse gear
noise-orevention
tdevice5th speed inter-
inediate gear
Intermediate aear
Spaceroutputshaft
drive gear
TFMooll

MANUAL TRANSAXLE <2WD> - General InformationF5M33
Clutch housing
Bearing retainer
\1st speedgear
2nd speed gear
I3rd speed gear
3rd-4th speed synchronizer assembly
4th speed gear
I5th speed gear
1 st-2nd
speedsynchro-
nizerassembly5th speed
synchronizer
assembly
- Rear Cover
. Reyerse gear
now-prevention
device
-5th speed inter
mediate gear
Intermediate
Differential drive gear
SpacerDrain plug
gear

MANUAL TRANSAXLE <2WD> - Transaxle Control
21-5
IANSAXLE CONTROLFor transaxle control, a floor-shift system employing
cables for control has been adopted.
0Rubber vibration-absorbers have been provided
at the points of connection of the shift and
select cables to the transaxle and the body in
order to prevent the transmission of minor
vibrations to the body.l A vibration-absorbing steel plate has been
pro-vided at the shift lever bracket’s cable connec-
tion point in order to reduce the shifting noise.
l Shaking movement of the shift lever during
acceleration and deceleration has been attenu-
ated by the flexibility of the shift and select
cables.
Vibration-preventionrubber Dieces
Vibration-preventionrubber Dieces

MANUAL TRANSAXLE <4WD> - General Information
MANUAL TRANSAXLE <4WD>
GENERAL INFORMATION
W5M33 transaxle is a transaxle for 4WD, having
center differential mounted on the output shaft ofwheels. Using the viscous coupling as a device for
the conventional front
wheeledrive type transaxle solimiting differential of the center differential, this
as to distribute drive power to the front and reartransaxle is a full time 4WD type and provides
improved traction and easy drive.
SPECIFICATIONS
Item
Transaxle model
We
Gear ratio
1 St
2nd
3rd4th5th
Reverse
Primary reduction ratio
(number of gear teeth)
Front differential gear ratio
(number of teeth)Specifications
W5M33-2-NPZS
5-speed constant-mesh cable controlled type3.083
1.684
7.1150.833
0.666
3.166
1.275 (37/29).
3.866 (58/l
51
Transfer gear ratio(number of teeth)1.090 (24/22)
Speedometer gear ratio
Oil quantity
liter (qts.)
Transaxle
Transfer
Dry weight ic kg (Ibs.)
29 I36
2.3 (2.43)0.6
(0.63)
64.0(141)

--.-.--_ _ _-MANUAL TRANSAXLE
<4WD> - General Information
SECTIONAL VIEWN5M3321-7Clutch housing
1st speed gear
Input shaft
-Drive bevel gear
\r
l!
.IBearing retainer\
St-1
w
.
I,..\\I \ I I
2nd speed synchronizer assembly
2nd speed gear
3rd speed gear
3rd-4th speed synchronizer assembly
I4th speed gear
I5th speed gear
5th speed
intermediate gear
shaft
Center differential
Front differentialViscdus coupling
wMool4

_.c.
21-8MANUAL TRANSAXLE <4WD> - General Information4WD SYSTEM
Viscous couplingCenter differential
cous coupling
kCenth differential
I
IFro& differential
Rear differential
I
I
I [[lll,i, ‘- h-
1 p’f’ ,* , l/i\
/IViscous couplingL
(Option)
3
2210105CONSTRUCTION
OF THE 4WD SYSTEM
The 4WD system configuration and a section of the
center differential are shown above.The viscous coupling for the center differential is
The center differential is placed on the center shaftlocated on rear side of center differential.This
and engine power is transmitted to the front andarrangement makes the entire transaxle simpler a
rear drive shafts by means of a concentric dual shaftmore compact. Differential limiting by the
centc,construction.differential viscous coupling takes place between
the center differential case and the center shaft
(rear wheel drive shaft).