1991 MITSUBISHI 3000GT Service Manual

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

23-14AUTOMATIC TRANSAXLE - SpecificationsPart name
Pressureplate
(for adjustment of low-reverse brake end play)
Spacer
(for adjustment of differential case preload)
Snap ringfor adjustment of output flange bearing end play)Thickness mm (in.)Identification
symbolPart No.
5.9
l.232)A
MD731 736
6.0
f.236)0MD731 737
6.1
i.240)1MD731738
6.2
(.244)2MD731 739
6.3
(.248)3MD731 740
6.4
(.252)4MD731 588
6.5
(.256)5MD731 741
6.6
(.260)6MD731742
6.7
(.264)7MD731 743
6.8
(.268)8MD731744
6.9
l.272)9MD731 745
0.83
(.0327)83MD720937
0.86
l.0339)86MD720938
0.89
t.0350)89MD720939
0.92
t.0362)92MD720940
0.95
f.0374)95MD720941
0.98
t.0386)98MD720942
1
.Ol f.0398)01MD720943
1.04 l.0409)04MD7209441.07
(.0421)07MD720945
I. 10 f.0433)JMD710454
1.13
f.0445)DMD700270
1.16(.0457)KMD710455
1.19
l.0469)LMD710456
1.22
(.0480)GMD700271
1.25
(.0492)MMD710457
1.28
i.0504)NMD71 0458
1.31
(.0516)EMD706574
1.34
l.0528)0MD710459
1.37
f.0539)PMD710460
1.76
t.0693)BrownMD73331 4
1.82
(.0717)NoneMD722538
1.88
i.0740)BlueMD721 014
1.94
(.0764)BrownMD721015
2.00
t.0787)NoneMD721016
2.06
(.0811)BlueMD721017
2.12
l.0835)BrownMD722539
2.18
t.0858)NoneMD73331 5
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

23-16AUTOMATIC TRANSAXLE - Special Tools
SPECIAL TOOLSM23DA.BReassembly of valve body
1 TSB Revision

AUTOMATIC TRANSAXLE - Special Tools23-17MD998829Installer adapter
(60)Driving of bearing
i
TSB Revision

23-18AUTOMATIC TRANSAXLE - SDecial Tools
Removal and installation of low/reversepnng compressor
MD998916-l-01Kickdown servo
wrench adapter
MD998916-2-01 Outer sleeve
MD998916-3-01 Inner sleeveKickdown servo
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

23-20AUTOMATIC TRANSAXLE - Troubleshootina
TROUBLESHOOTING GUIDE
‘resumed cause
38Malfunction of transaxle control unttX
NOTE- @ indicates items of prlortty during Inspection.PSCV = Pressure control solenoid valveAbbrewatlons TPS = Throttle powon sensor
DCCSV = Damper clutch control solenoid valveSCSV = Shift control solenoid valveOD = Overdwe
1 TSB Revision