1991 MITSUBISHI 3000GT brake

22-18MANUAL TRANSAXLE - Transaxle Assemblv
TRANSAXLE ASSEMBLYIM22ME.A
I
DISASSEMBLY AND REASSEMBLY
l5-22Nmdl
11 - 15 ftlbs.
-42 Nm
- 30 ftlbs.30-35 Nm
4.0 -5.5Nm
22
- 25 ft.lbs.lIll42.9 -3.9ftlbs.
/I18
J6140-160Nm1102-115ftlbs.
3-5Nm2.5 - 3.5 ftlbs.
11Disassembly steps
1.Bolt2.Rear cover3.Wave spring4.Screw bolts5. Reverse brake cone
6. Backup light switch
7.Gasket8.Poppet plug9.Poppet springIO. Poppet ball11.Bolt12. Speedometer driven gear assembly13.Air breather+* +* 14. Spring pin
*+ l * 15. Lock nut*+ l + 16. Lock nut17. 5th speed synchronizer assembly
18. 5th speed shift fork
19.Synchronizer ring20. 5th speed gear21.Needle bearing22. 5th speed intermediate gearTSB Revision

22-28
MANUAL TRANSAXLE -5th Speed Synchronizer Assembly
5TH SPEED SYNCHRONIZER ASSEMBLY
DISASSEMBLY AND REASSEMBLY
TEMOl18
Disassembly steps
1. Reverse brake ringl *2. Synchronizer spring
3. Synchronizer sleeve
** 4. Synchronizer keyl *5. Synchronizer hub
@
/r /
JI,::. ‘..-‘. .\:’201045
INSPECTION
SYNCHRONIZER SLEEVE AND HUB
lCombine the synchronizer sleeve and hub and check thatthey slide smoothly.
lCheck that the sleeve is free from damage at its inside front
and rear ends.l
Check for wear of the hub front end (surface in contact withthe 5th speed gear).
Caution
When replacing, replace the synchronizer hub and
sleeve as a set.
SYNCHRONIZER KEY AND SPRINGl
Check for wear of the synchronizer key center protrusion.
lCheck the spring for weakness, deformation and breakage.
1 TSB Revision

23-1
AUTOMATIC
TRANSAXLE
CONTENTSMZJAA- _
ANNULUS GEAR AND TRANSFER DRIVE GEARTransmission Fluid Level Inspection................................46SET................................................................................................
102Transmission Fluid Replacement........................................
46
DIFFERENTIAL........................................................................104SPECIAL TOOLS........................................................................
16
:......................................... 12IEND CLUTCH ASSEMBLY....................................................99SPECIFICATIONS..........................
FRONT CLUTCH ASSEMBLY................................................95
GENERAL INFORMATlON....................................................2
KICKDOWN SERVO................................................................
107
LOW-REVERSE BRAKE............................................................
107
OIL PUMP....................................................................................93
PLANETARY GEAR................................................................
100
REAR CLUTCH ASSEMBLY....................................................97
SELECTOR LEVER ASSEMBLY............................................58
SERVICE ADJUSTMENT PROCEDURES............................46
Accelerator Switch
Inspection and Adjustment................
50Drive Shaft Oil Seals Replacement....................................
52Inhibitor Switch and Control Cable Adjustment................
52Key Interlock Mechanism Check........................................50KickdownServo Adjustment................................................
47Line Pressure Adjustment....................................................
48Reducing Pressure Adjustment........................................
49Selector Lever Operation Check........................................
50Shift Lock Mechanism Check............................................51Speedometer Cable Replacement....................................53
General Specifications........................................................12Lubricants............................................................................15Service Specifications........................................................12Spacer and Snap Ring........................................................13Valve Body Spring Identification Chart............................13
SPEEDOMETER DRIVEN GEAR ASSEMBLY....................106
TRANSAXLE ASSEMBLY........................................................62
TRANSAXLE CONTROL*........................................................54
TRANSAXLE OIL COOLER, HOSES, TUBES
....................66
TRANSFER SHAFT....................................................................92
TROUBLESHOOTING............................................................
19
A/T Safety-lock System Troubleshooting........................44Converter Stall Test............................................................
43
Diagnosis and Test
................................................................
22
Element in Use at Each Position of Selector Lever........31Inspection
of ControlSystem............................................
28Inspection of Electronic Control System Components....32Oil Pressure Tests................................................................
39ShiftPatterns....................................................................
31,42Troubleshooting Guide........................................................
20
VALVE BODY. . . .._._.................................................................... 108
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
(1)A Supplemental Restraint System (SRS), which uses a driver-side air bag, has been installed in the 3668GT.(2)The SRS includes the following components: impact sensors, SRS diagnosis unit: SRS warning light, air bagmodule, clock spring, interconnecting wiring. Other SRS-related components (that may have to beremoved/installed in connection with SRS service or maintenance) are indicated in the table of contents byan asterisk (*).
WARNING!(1)Improper service or maintenance of any component of the SRS, or any SRS-related component, can lead topersonal injury or death to service personnel (from inadvertent firing of the air bag) or to the driver (from
rendering the SRS inoperative).
(2) Service or maintenance of any SRS component or SRS-related component must be performed only at an
authorized MITSUBISHI dealer.
(3) MlTSUBISHI dealer personnel must thoroughly review this manual, and especially its GROUP 52B -Supplemental Restraint System (SRS), before beginning any service or maintenance of any component of the
ISRS or any SRS-related component.

23-4AUTOMATIC TRANSAXLE - General information

Tort-
CCvJ
Kickdown servo--
Low-reversebrake
Rear clutch Front clutch
F12/
!P
End clutchii
/
Ii”
t
OFF
z7szzz
10-IF=?
OFF
snort controlvalve
1'7 H I-------i II/
IIjamper clutcontrol solerwualveTo lubrrcatron c(front)To lubrrcatton c(rear)ReducingL valve
IIsolenoidvalve “B”
Pressure control
N-R control
valve
Pressurecontrol
OFFsolenord
m Oil pump suction pressure
0 Modulated line pressure
0 Damper clutch pressure
@gjJDamper clutch control solenoid
valve pressure
IPressure control solenoid
valve pressure
m Lrne pressure
0Torque converter and lubricationpressure
Reducing pressureTFA0071
TSB Revision

AUTOMATIC TLE - General Information23-5
cF4A21 - Drive-Stopping>
Torque converter
Low-reverse
brake
Kickdown servo
Front clutchRear clutch -End clutch
jy ~&~ntroiun~t j
Damper clutchcontrol solencvalve
To lubrmtl(front)
Torque
I31
converterFcontrol ”valveEX
Pressure control
IPressurex^,?“t*,.l
* Y
4- - - - - _ _ _Oil filter
Lme reliefvalve
EX
Oil pan
Line pressure
0Torque converter and lubricationpressure
Reducing pressure
0 Modulated line pressure
IPressure control solenoid
valve pressure
[-
Damper clutch pressure
Damper clutch control solenoid
valve pressure
1 Drive(Stop) /TFA0242
1 TSB Revision

23-6AUTOMATIC TRANSAXLE - General Information

Kickdow:: servoILOWreverseIbraketront LlutLh
End clutch
IIII
rransaxk!, j p Ja
Damper Cllcmltrol SOlf
PII Iill
/I I%------=*To
lubrlcdtlon +(Wir)
TorqueCO”“Wtei
control
valv!?
ihlfr rontrolVllveI
, ,k.x
11 IPCP Rhln71, JI & \JPl i”‘4I,
PUW2
4; ;
LlrlC r&t.
1
: -VBIL’B
--_____E*n I6 ,S^_tI
Y$__.--
@II pan
[LIW pressure
Torque
cnnvertar and lubrication1 pressurs
/ 011 pump SUC!IO!l pressure
n Mod&ted 1x1~ pressurerDamper clutch coL&e pressure]
RedllCl!?g preswreElPressure contrcJ snlerloidwlve presslirs
psiizq
TFA0072
TSB Revision
15 II I b/ 0 ib1 ( fPIV

23-10AUTOMATIC TRANSAXLE - General Information

Kickmwn sers.a
brakeFnd i:l!itcibiirar ciuic!i
Damper ‘lutchcclntm .alw
II_----h-H+
I IIillc.II IIShift control ix
lamper ClUtCh:ontrol snlenold/alvr
lo lubrlcatlorl .ifront)To lubncatinn s(Wiil)IONsnlewld valve ‘A
m 011 pump iUCIIO!I pressure
u M&t&ted !
e pisss!ire
““Ii
Darn~ei clutch piessureDamper
clutc’l control soleno;dvalve pressllra,e co~ver:ei ilrxl lubr’catlonc: ,urcPressure control solenoidEl valve p&re
Lock-up(First) /TFA0076
1 TSB RevisionI
/‘ L. .a*+ i 4, , .*i 3 --w’: 1/( .:, v$<::i& ‘i.fLli k

23-12AUTOMATIC TRANSAXLE - Specifications
SPECIFICATIONSGENERAL SPECIFICATIONS~
M23CA.C
Items
Model
TypeTorque converter
WeEngine stall speed
Stall torque ratioSpecifications
F4A33-I-MNN2Full automatic
4 speed transaxle
3 element with damper clutch
2,200- 3,200 rpm
1.80Transaxle
TypeGear ratio
First
Second
Third
Fourth
Reverse
Final gear ratio
Speedometer gear ratio (Drive/Driven)Electronically controlled4-speed full-automatic
2.551
1.488
1.000
0.6852.176
3.95836128
SERVICE SPECIFICATIONS
M23CB-Cmm (in.)
‘dterns
Standard value
Accelerator switch switching point
Sleeve and selector lever assembly end play
Transfer driven gear preload
Low-reverse brake end playSpecifications
2
- 6 (.079 - .24)
15.2
- 15.9 (598 - .625)0.075-0.135
(.0030- .0053)1
.O - 1.2 (.0394 - .0472)Input shaft end play
0.3
- 1 .O t.0118 - .0394)Differential case preload
0.075
- 0.135 (0030 - .0053)Differential gear and pinion backlash
0.025
- 0.150 LOOI 0 - .0059)Oil pump side clearance
0.03
- 0.05 (.0012 - .0020)Output flange bearing end play
0
- 0.09 (0 - .0035)Front clutch end play
0.8
- 1 .O (0315 - .0394)Rear clutch end play
1 .O - 1 .j (.0394- .0472)End clutch end play
0.60
- 0.851.0236 - .0335)
1 TSB Revision