1991 MITSUBISHI 3000GT clutch

23-8AUTOMATIC TRANSAXLE - General Information
cF4A21 - Drive-Third>
p
th11per dutcI1mlirol solenudia1vLl1~0 IublIcatiunifrunt] -lo lubrlcailarl +=kari
I’oiquccorlverler(‘0”‘m DOva,\a,3/x
Kickdo:.rn sewn,,\\\\ \b7J
/ j
/ ! Shift cct:troI
11solewld
valve “Es”
ii--
m LIW pre55ure
Toryue c”nveit~r and lubr~cdt~onS”E
j O!l pump SUCtlcn pre3iureDamper clutch F
0Modu’ated line pressureDamper clutch cb
P’9xrP COnfrUl solenoid0 “L p&K;
1 Drive(Third) 1
TFA0074
1 TSB Revision

AUTOMATIC TRANSAXLE - General Information23-9
cF4A21 - Drive-Fourth>
K~ckdown servoLow !e?risebra*,;trrmt clu:ctlFM! ~CIUtCtlP
i
i’;::o
T<,r:,tp r-nnverter
V~llVClo ILibrlcatlon +(!m!!)To lubricd!iw +lreari
----..___/
11
/JLlllC rel1rf
j @!I plimp Suction pressu:eDamper clutch pressureL ‘I$ pir-w!w
i Modulated line pressuierorque co,l”crI’?r r Reduclr~~] piessuri:
TFA007t
1 TSB Revision

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

AUTOMATIC TRANSAXLE - General lnformatisn

Low-reverse
Kickdown servo
Torque converter
Front clutch
End clutch
‘ransaxleontrol unit
-3/4-3hift valve
I!Hear clutchexhaust valve
Damper
clutctcontrol solenovalveTo lubrlcatlon c(front):p,$matlon c
Torqueconvertercontrol 0svalveF
Shift control
valve
,:+
I,Ex E
IvePressure control‘2 valve
Pressure
N-R control
-7
i+----___Oil filter
H .j
\I:ovalve
EX
011 pan;tro’ j
Ire0 Oil pump suction pressureDamper clutchLine pressure
0 Modulated line pressureDamper clutchvalve pressureI solenoidTorque converter and lubrlcatlon
pressure
0Pressure ‘control solenoidvalve pressure Reducing pressure
I Reverse ITFA0077
1 TSB ,RevisionI

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

AUTOMATIC TRANSAXLE - Specifications23-13
VALVE BODY SPRING IDENTIFICATION CHARTMZJCG- -
.mm (in.)
Part name
Wire diameter
Outside diameterLengthNo. of turns
Regulator valve spring
1.4 (.055)
15
(59)52 (2.05)
11.5
l-2 shift valve spring
0.6
(024)7.6 (.299)26.6 (1.047)13.5
Pressure control valve spring
0.45
(.0177)7.6 f.299)21.3 (.839)8.5
Rear clutch exhaust valve
0.7
(028)6.8 (268)27.4 (1.079)12.5springEnd clutch valve spring
0.6
(024)6.6 (260)24.4 (.961)15.5
23 shift valve spring
0.8 (031)7.0 (.276)27.5 (1.083)15.5
N-R control valve spring
0.7 (.028)
9.2 (.362)32.1 (1.264)
8.5
Reducing valve spring
1.2 (.047)
8.9
(350)29.5(1.161)12.5
Line relief spring
1 .o (.039)
7.0 (276)17.3 (.681)10Torque converter valve
1.3 (.051)
9.0 (.354)22.6
f.890)9.5springShift control valve spring
0.5 (.020)
5.7 (.224)26.8
(1.055)22
Damper clutch control valve
0.7 (.028)
6.2 (.244)14.2 t.559)
9.5
spring
SPACER AND SNAP RINGPart name
id??$%justment of transfer driven gear preload)Thickness mm (in.)Identification
symbol
3.62(.0244)62
3.65
(.0256)65
3.68
(.0268)68
3.71(0280)713.74
(.0291)74
3.77
(.0303)77
3.80
(.0315)80
3.83
(.0327)83
3.86
l.0339)86
3.89
(0350)89
3.92
(0362)92
3.95
(.0374)95
3.98
(0386)98
1 .Ol(.0398)01
1.04(.0409)041.07
(.0421)07
1 .I0(.0433)10
1 .I3(.0445)13
I. 16(.0457)16
1.19
f.0469)191.22
(.0480)22
1.25
(.0492)25
1.28
(.0504)28
1.31(.0516)31Part No.
MD737444
MD737445
MD737446
MD737447
MD728802
MD728803
MD726804
MD728805
MD728806
MD726807
MD726808
M
D726809MD72881 0
MD72881 1
MD72881 2
MD72681 3
MD72881 4
MD72881 5
MD72881 6
MD72881 7
MD72881 8
MD72981 9
MD729820MD72682 1
TSB Revision

AUTOMATIC TRANSAXLE - Specifications.23-15Part name
Thickness mm (in.)
’ Identification
symbolPart No.
Spacer
(for adjustment of differential gear and
pinion backlash)0.75
- 0.82-MD722986LO295 - .0323)0.83
- 0.92-MD722985t.0327 - .0362)0.93
- 1 .oo-MD722984LO366 - .0394)
1.01 -1.08-MD722982(.0398 - .0425)
1.09-1.16-MD7;!2983LO429 - .0457)Snap ring
(for adjustment of front clutch and rear
clutch end play)
* __. Only for rear clutch
Snap ring
(for adjustment of end clutch end play)1.3”
i.051)
1.4* (.055)1.5 (.059)
1.6 f.063)
1.7 t.067)
1.8 (.071)
1.9 (.075)
2.0
t.07912.1 f.083)
2.2
t.087)2.3
(.091)2.4
(.094)1.05
f.0413)1.30
(.0512)1.55
(.0610)1.80
(.0709)2.05
(.0807)None
Blue
Brown
None
Blue
Brown
None
Blue
Brown
None
Blue
Brown
White
Yellow
None
GreenPinkMD731 747
MD731 748
MD731 749
MD731750
MD731751
MD731 752
MD731 753
MD731 754
MD731 755
MD731756
MD731757
MD731 758
MD71 5800
MD71 5801
MD71 5802
MD71 5803
MD720849
LUBRICANTSM.23CD.BItems
1 Specified lubricants1 Quantity
Transaxle fluidliters (qts.)
Drive shaft oil seal lipDia ATF SP or MITSUBISHI PLUS
ATF or equivalent
TSB Revision

AUTOMATIC TRANSAXLE - Troubleshootincl23-19Based upon use of the troubleshooting
Checks should be made of fluid levels and
the condition of the ATF, as well as the
condition of the manual control cables;
adjustments should then be made if found
to be necessary.
If a presumption has been made that there
is an abnormal condition somewhere in
the electronic-control system, check the
fault code, in order to determine the
probable location of the problem, by using
a multi-use tester or voltmeter.
I
When the abnormal system is discovered,
check each element (sensors, etc.) one by
one, and make repairs as necessary.
IWhen the abnormal condition is presumed
to be in the oil-pressure-control system
When the result of the oil-pressure test
does not satisfy the specified pressure,
check each system at places related to the
valve body, check the oil-pressure pas-
sages for leakage, etc.
I
If the problem isunusually dirty ATF,
abnormal noises, oil leakage, or slippage of
the clutch or brakes, or an abnormal
condition of the transaxle itself, disassem-
ble and repair the transaxle.
TROUBLESHOOTINGM23EEAYFunctional malfunctions of the ELC4A/T can lead to other
problems, such as those described below:(I
) Improper maintenance and/or adjustments
(2) Malfunctions of the electronic control functions
(3) Malfunctions of mechanical functions
(4) Malfunctions of hydraulic control functions
(5) Malfunctions of engine performance
etc.
In order to properly determine (“Troubleshoot”) the source of
these malfunctions, it is first essential to methodically question
the user concerning the details of the problem, such as the
condition of the problem, the situation at the time the problem
occurred, and any other relevant information, all in as much
detail as possible. The user should also be asked whether or
not the problem has occurred more than once, and under what
conditions.
Subsequently, certain tests should be conducted in a certain
order, as described at the left.
TSB Revision