1998 MITSUBISHI LANCER EVOLUTION IV transmission

MPI – Troubleshooting13-21

Descriptions other than those given below are the same as for the EVOLUTION-IV.
Item
No.Inspection
itemInspection contentsNormal condition
12Air flow
sensor*1Engine coolant temperature:
80–95C
Engine is idling12 – 38 Hz
sensor*180 – 95C
Lamps, electric cooling fan and
all accessories: OFF
2,500 r/min36 – 76 Hz
all accessories: OFF
Transmission: NeutralEngine is racedFrequency increases
in response to racing
41Injector
drive time*2Engine: Cranking*2When engine coolant temper-
ature is 0C27 – 40 ms
When engine coolant temper-
ature is 20C14.5 – 21.7 ms
When engine coolant temper-
ature is 80C3.8 – 5.6 ms
Injector
drive time*3Engine coolant temperature:
8095C
Engine is idling0.9 – 2.1 ms
drive time *380 – 95C
Lamps, electric cooling fan and
all accessories: OFF
2,500 r/min0.7 – 1.9 ms
all accessories: OFF
Transmission: NeutralWhen engine is suddenly
racedIncreases
44Ignition
advance
Engine: After having been
warmed up
Engine is idling0 – 13BTDC
advancewarmed up
Timing lamp is set.2,500 r/min24 – 44BTDC
NOTE
*1: In a new vehicle (driven approximately 500 km or less), the air flow sensor output frequency is sometimes
10 % higher than the standard frequency.
*2: The injector drive time represents the time when the cranking speed is at 250 r/min or below when the power
supply voltage is 11 V.
*3: In a new vehicle (driven approximately 500 km or less), the injector drive time is sometimes 10 % longer than
the standard time.

MANUAL TRANSMISSION 22A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MANUAL TRANSMISSION OVERHAUL 22B. . . . . . . . . . . . . . . . . . . . . .
22-1
MANUAL
TRANSMISSION
CONTENTS

22A-1
MANUAL
TRANSMISSION
CONTENTS
LUBRICANTS 2. . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS 2. . . . . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE 3. . . . . . . . . . . . . . . . . .
1. Transmission Oil Check 3. . . . . . . . . . . . . . . .
2. Transmission Oil Replacement 3. . . . . . . . . .
3. Transfer Oil Check 3. . . . . . . . . . . . . . . . . . . .
4. Transfer Oil Replacement 3. . . . . . . . . . . . . .
TRANSMISSION CONTROL* 4. . . . . . . . . . . . .
Shift Lever Assembly 6. . . . . . . . . . . . . . . . . . . . . .
TRANSMISSION ASSEMBLY 7. . . . . . . . . . . . .
TRANSFER ASSEMBLY 10. . . . . . . . . . . . . . . .
WARNING REGARDING SERVICING OF SUPPLEMENTAL RESTRAINT SYSTEM (SRS) EQUIPPED VEHICLES
(1) Thoroughly review this manual, especially GROUP 52B – Supplemental Restraint System (SRS) before beginning any
service or maintenance of any component of the SRS or any SRS-related component.
(2) When removing or installing the components indicated in the table of contents by an asterisk (*), use special care not
to apply shocks to SRS-related components.

MANUAL TRANSMISSION – Lubricant / Special Tools22A-2
LUBRICANT
ItemSpecified lubricantQuantity dm3 (
)
Transmission oilMITSUBISHI genuine “Dia-Queen” multi gear oil <75W/85W>2.8 (2.8)
Transfer oilMITSUBISHI genuine “Dia-Queen Super” hypoid gear oil (GL-5)0.62 (0.62)
SPECIAL TOOLS
ToolNumberNameUse
MB990635 or
MB991113Steering linkage
pullerTie rod end and lower arm disconnection
Recommended
tool MZ203826
by Anzen
Jidosha or
MZ203827 by
BanzaiEngine lifterSupporting the engine assembly during
removal and installation of the transmission
MB991453Engine hanger
MB991612AdapterRemoving output shaft
MB990211Slide hammer
MB991193PlugPreventing oil flowing out from and foreign
matter entry into transfer.

MANUAL TRANSMISSION – On-vehicle Service22A-3
ON-VEHICLE SERVICE
1. TRANSMISSION OIL CHECK
(1) Remove the oil filler plug.
(2) Oil level should be at the lower portion of the filler plug
hole.
(3) Check that the transmission oil is not noticeably dirty,
and that it has a suitable viscosity.
(4) Tighten the filler plug to the specified torque.
Tightening torque: 32 Nm {3.3 kgfm}
2. TRANSMISSION OIL REPLACEMENT
(1) Remove the drain plug to drain oil.
(2) Tighten the drain plug to the specified torque.
Tightening torque: 32 Nm {3.3 kgfm}
(3) Remove the filler plug and fill with specified oil till the
level comes to the lower portion of filler plug hole.
Transmission oil
Specified oil:
MITSUBISHI genuine “Dia-Queen” multi gear oil
<75W/85W>
Quantity: 2.8 dm
3 (2.8
)
(4) Tighten the filler plug to the specified torque.
Tightening torque: 32 Nm {3.3 kgfm}
3. TRANSFER OIL CHECK
(1) Remove the oil filler plug.
(2) Oil level should be at the lower portion of the filler plug
hole.
(3) Check that the transmission oil is not noticeably dirty,
and that it has a suitable viscosity.
(4) Tighten the filler plug to the specified torque.
Tightening torque: 32 Nm {3.3 kgfm}
4. TRANSFER OIL REPLACEMENT
(1) Remove the drain plug to drain oil.
(2) Tighten the drain plug to the specified torque.
Tightening torque: 32 Nm {3.3 kgfm}
(3) Remove the filler plug and fill with specified oil till the
level comes to the lower portion of filler plug hole.
Transfer oil
Specified oil:
MITSUBISHI genuine “Dia-Queen Super” hypoid
gear oil (GL-5)
Quantity: 0.62 dm
3 (0.62
)
(4) Tighten the filler plug to the specified torque.
Tightening torque: 32 Nm {3.3 kgfm}
Transmission oilFiller plug hole
Filler plug
Drain plug
Filler plug
Drain plug
Transfer oil

MANUAL TRANSMISSION – Transmission Control22A-4
TRANSMISSION CONTROL
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation

Air Cleaner Assembly Removal and InstallationCaution: SRS
Be careful not to subject the SRS-ECU to any shocks
during removal and installation of the shift cable
and select cable assembly.
456
7 8
9
10
11
12
13 141
2
3 8
Unit: Nm {kgfm}
12 {1.2}
12 {1.2}
Shift cable and select cable
assembly removal steps
B1. Shift knob
B2. Spring washer
B3. Nut

Front floor console
(Refer to GROUP 52.)
4. Snap pin
5. Select cable connection
(Shift lever side)
6. Clip
7. Shift cable connection
(Shift lever side)
8. Snap pin
A9. Select cable connection
(Transmission side)
A10. Shift cable connection
(Transmission side)
A11. Shift cable and select cable as-
semblyShift lever assembly removal steps
B1. Shift knob
B2. Spring washer
B3. Nut

Front floor console
(Refer to GROUP 52.)
4. Snap pin
5. Select cable connection
(Shift lever side)
6. Clip
7. Shift cable connection
(Shift lever side)
12. Shift lever assembly
13. Distance piece
14. Bushing

MANUAL TRANSMISSION – Transmission Control22A-5
INSTALLATION SERVICE POINTS
ASHIFT CABLE AND SELECT CABLE ASSEMBLY
/ SHIFT CABLE CONNECTION / SELECT CABLE
CONNECTION
(1) Set the transmission side shift lever and the passenger
compartment side shift lever to the neutral position.
(2) For the transmission side, the white and yellow paint
marks on the shift and select cable ends should face
the snap pins.
(3) Move the shift lever to all positions and check that the
operation is smooth.
BNUT / SPRING WASHER / SHIFT KNOB
INSTALLATION
(1) Screw in the nut all the way by hand, turn back half
a turn, and then insert the spring washer.
(2) Screw in the shift knob until it touches the spring washer,
and make one more turn. Then turn more to adjust the
shift pattern on the shift knob.
(3) If the above steps are impossible, you can turn back
the shift knob by one turn at most after screwing in all
the way to adjust the shift pattern.Shift lever
Neutral position

MANUAL TRANSMISSION – Transmission Control22A-6
SHIFT LEVER ASSEMBLY
DISASSEMBLY AND REASSEMBLY
1
23
4
57
8
9
10 39
6
Unit: Nm {kgfm}
14 {1.4}
10 {1.0}
Disassembly steps
1. Bolt
2. Select lever
3. Bushing
4. Return spring
5. Collar6. Bolt
7. Cap
8. Shift lever
9. Shift lever bushing
10. Base block