1991 MITSUBISHI 3000GT oil filter

FUEL SYSTEM - On-vehicle Inspection of MPI Components13-101INJECTORS
M13YTAC2
IInjectorII\- 7FUO803
7FI
FuelFilter
@Injection
7FUO83:2Connector for
rear bank
Engine control unit7FUO833
Engine control unit connector
7FUO653
OPERATIONlThe injector is an injection nozzle with a solenoid valve which injects fuel according to the injection signal
coming from the engine control unit.
lThe injector has a fixed nozzle opening area and the fuel pressure against manifold inside pressure is
regulated to a fixed level. Therefore, the volume of fuel injected by the injector is determined by the time
during which the needle valve is open, namely, by the time during which the solenoid coil is energized.
lThe battery voltage is applied through the control relay to this injector. When the engine control unit turns
on the power transistor in the unit, the solenoid coil is energized to open the injector valve, which then
injects fuel.
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13-152FUEL SYSTEM- Fuel Line and Vapor Line
03FOO3
05FOO735 Nm7r; ft
Ihr-k” ._..I_.
@dFlare nut,xSERVICE POINTS OF REMOVAL
MlBKBAQ9. 13. REMOVAL OF EYE BOLT
Remove the eye bolt while holding the fuel filter nut
\securely.
Caution
Cover the hose connection with rags to prevent splash
of fuel that could be caused by some residual pressurein the fuel pipe line.
INSPECTION
MIBKCAJ
lCheck the hoses and pipes for cracks, bend, deformation
and clogging.
l Check the canister for clogging.
l Check the fuel filter for clogging and damage.
SERVICE POINTS OF INSTALLATION
MlSKDAU17.5. INSTALLATION OF FUEL VAPOR HOSE
/ 8. FUEL
RETURN HOSE
(1) If the fuel pipe has a stepped part, connect the fuel
hose to the pipe securely, up to the stepped part, as
shown in the illustration.
Iti(2) If the fuel pipe does not have a stepped part, connect
the fuel hose to the pipe securely, so that it is the
standard value.
Standard value: 25
- 30 mm (1.0 - 1.2 in.)
15. INSTALLATION OF HIGH PRESSURE FUEL HOSEApply engine oil to the hose union.
Insert the hose, being careful not to damage the O-ring, and
tighten securely.
CautionBecause there is high pressure applied between the
fuel pump and the injection mixer, be especially sure
that there is no fuel leakage in this area.
12. INSTALLATION OF FUEL FILTER(1) When installing the fuel filter, first temporarily install the
filter to the filter bracket; then insert the main pipe at
the connector part of the high pressure fuel pipe, and
manually screw in the main pipe’s flare nut.
(2) Holding the fuel filter nut, tighten the fuel main pipe’s
flare nut and eye bolt at the specified torque. Then
tighten the filter to the bracket.
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22-20MANUAL TRANSAXLE - Transaxle Assembly
30-35Nm22 - 25ftlbs.35-42 Nm26 - 30ft.lbs.
43-55Nm32 - 39 ft.lbs.Disassembly steps
23. Reverse idler gear shaft bolt24.Gasket
25.Bolt
l * 26. Transaxle caseI)* 27. Oil guide28.Bolt29.Spring washer30.Stopper bracket31. Restrict ball assembly32.Gasket** 33. Oil seal34. Bearing outer racel a 35. Spacer36. Bearing outer racel a 37. Spacer38.Filter
39. Bearing outer raceSealant: MITSUBISHI Genuine
Part No. 997740 or equivalent
** 40. Spacer41. Bearing outer racel * 42. Spacer43. Bolt
44. Reverse shift lever assembly
45. Reverse shift lever shoe
** 46. Reverse idler gear shaft
47. Reverse idler gear
*I) I)+ 48. Spring pin*I) l * 49. Spring pin*,I) I)* 50. Shift rail assembly
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AUTOMATIC TRANSAXLE - General Information23-3HYDRAULIC CONTROL SYSTEM

i
Low-reversehr3b.3\t3ear clutch “IYhFI\\\\\\1
,/I // L1 ji‘erhaustvalve7 ;// j/ .j/,
Damper cluGcontrol solenoidvalve
To lubncatlon(front) cTo lubncatlon ,-=(rear)
Torquel-2 shift
valvek&!&!&I h TransaxldI e 1 11
---- il.valve
I 1 Shik control I!:;?A+;ilEjJJBi,
IIsolenoid
valve “6”S3ivcontroI
I/
i %
\sl
valve
Ex[ 011 filter J
011 pan
m Line pressure
-Tyue converter and lubricationsure
-_ucing pressureOil pump suction pressure
a Modulated line pressure
I”‘rl Damper clutch pressure
mDamper clutch control solenoid
valve pressure
IPressure control solenoidvalve pressureTFA0070
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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
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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
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23-40AUTOMATIC TRANSAXLE - Troubleshooting
REMEDIAL ACTION TO TAKE FOR INADEQUATE OIL PRESSURESymptom
Possible cause
Remedy
1. All line pressuresa. Plugged oil filter
are low (or high).b. Improperly adjusted regulatora. Visually check oil filter and replace it if plugged.
valve line pressure
b. Measure line pressure (2) (KID brake pres-
NOTE:sure) and readjust line pressure if it is
Line pressures areout of specifications.
@.@.@).@.@and @shown onc. Defective valve body assemblyOr, replace valve body assembly.
the Standard Oil
Pressure Table
on the preceding
paw.
d. Valve body left loose
e. Improper oil pump delivery.
pressurec. Replace valve body assembly.d. Torque valve body clamp bolt and mounting
bolt to specification.
e. Check oil pump gear side clearance and
replace oil pump assembly as necessary.
2. Improper reducing
a. Plugged reducing pressure
a. Disassemble valve body assembly to check
pressurecircuit filter (L-shaped)
b. Improperly adjusted reducingfilter and replace filter if it is plugged.
b. Measure reducing pressure @and readjust
pressure
c. Defective valve body assemblyas necessary.
c. Replace valve body assembly.
3. Improper K/D
brake pressure
(application)a. Defective seal ring
@ and D-ring @of K/D servo piston and seal ringa. Disassemble K/D servo and check seal ring
@of sleeveand D-ring for damage. Replace seal ringb. Defective valve body assemblyor D-ring if damaged or scratched.
b. Replace valve body assembly.
4. Improper KIDbrake pressure
(release)
J. Improper front
clutch pressurea. Defective seal ring
@ and D-ring @of K/D servo piston and seal ringa. Disassemble KID servo and check seal ring
@ of sleeveand D-ring for damage. Replace seal ring
b. Defective valve body assemblyor D-ring if damaged or scratched.b. Replace valve body assembly.
a. Defective seal ring @and D-ring
@of K/D servo piston and seal ringa. Disassemble K/D servo and check seal ring
@ of sleeveand D-ring for damage. Replace seal ringb. Defective valve body assemblyor D-ring if damaged or scratched.
c. Worn front clutch piston andb. Replace valve body assembly.c. Disassemble transaxle and check front clutch
retainer or defective D-ring @or seal ring @piston and retainer for wear and D-ring and
seal ring for damage. Replace piston, retainer,
D-ring, or seal ring as necessary.
3. Improper
rear clutch
pressure
7. Improper
end clutch
pressurea. Defective D-ring
@ of piston,
seal ring @ of retainer,
and seal ring @and D-ring @of input shaft
b. Defectrve valve body assembly
a. Defective seal ring
0. D-ring 0,and oil seal (iJ of end clutch
b. Defective valve body assemblya. Disassemble rear clutch and check input shaft
D-ring, center support seal ring, and piston
D-ring; replace if damaged or scratched.
b. Replace valve body assembly.
a. Disassemble the end clutch and check piston oil
seal, D-ring, and center support seal ring;
replace if damage or scratches are evident.
b. Replace valve body assembly.
8. Improper
low-reverse
brake pressurea. Damaged O-ring between valve
body and transmission
b. Defective valve body assemblyc. Defective D-ring @of piston
or O-ring
@I of center supporta. Remove valve body assembly and check O-ring
on top of upper valve body; replace if damage
or scratches are evident.
b. Replace valve body assembly.
c. Disassemble transaxle and check D-ring and
O-ring; replace if damage or scratches are eviden
3. Improper
torque converter
pressurea. Sticking damper clutch controla. Check damper clutch system and DCCSV
solenoid valve (DCCSV) or damper
for operation.
clutch control valve
b. Plugged or leaky oil cooler and
pipingsb. Repair or replace cooler or pipings.
c. Damaged seal ring @of input shaftc. Disassemble transaxle and check seal ring;
d. Defective torque converterreplace if it is damaged.
d. Replace torque converter.
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d

23-48AUTOMATIC TRANSAXLE - Service Adjustment Procedures
Adjusting screw4
or~0\====m00~7/IIIITFAm
c-1
Pi(8) Tighten lock nut by hand until it contacts piston. Then, using
torque wrench, tighten to specification.
Lock nut: 29 Nm (21
ftlbs.)Caution
Use of socket wrench or torque wrench could result in
lock nut being turned with adjust rod.
(9) Remove the special tool to secure the piston and torque
plug to specification at L/R brake pressure take-up port.
LINE PRESSURE ADJUSTMENT
(I) Discharge AFT.
(2) Remove oil pan.
(3) Remove oil filter.
(4) Remove oil temperature sensor.
M23FSAC(5) Press solenoid valve harness grommet catch to push in
grommet; then, remove valve body assembly.
Caution
Do not let manual valve fall.
(6) Turn adjusting screw of regulator valve to obtain the
specified line pressure
(K/D brake pressure).
Standard value:870
- 890 kPa (124 - 127 psi)
Oil pressure change for
each turn of adjustment screw:38
kPa (54 psi)
(7)Check that an O-ring is fitted at the location shown on top off
valve body.
(8) Replace O-ring of solenoid valve intermediate grommet
with a new one and then fit the O-ring into case.6
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