Mitsubishi Lancer Evolution IX. Manual - part 342

AKX00295AD

ON-VEHICLE SERVICE

ENGINE LUBRICATION

12-5

7. Apply the specified sealant to the thread of oil 

pressure switch.

Specified sealant: 3M ATD Part No. 8660 or 
equivalent

AKX00294

MD998012

AF

CAUTION

Do not start the engine within one hour after the 
oil pressure switch has been installed.
8. Use the special tool oil pressure switch wrench 

(MD998012) to tighten the oil pressure switch to 
the specified torque.

Tightening torque: 10 

± 2 N⋅m

ENGINE OIL COOLER

ENGINE LUBRICATION

12-6

ENGINE OIL COOLER

REMOVAL AND INSTALLATION

M1121001300127

CAUTION

If the vehicle is equipped with the Brembo

™ disc brake, during maintenance, take care not to contact 

the parts or tools to the caliper because the paint of caliper will be scratched.

Pre-removal Operation
• Engine Oil Draining (Refer to 

P.12-3

).

• Under Cover Removal (Refer to GROUP 51, Front 

Bumper 

P.51-2

).

• Side Cover Removal

Post-installation Operation
• Side Cover Installation

• Under Cover Installation (Refer to GROUP 51, Front 

Bumper 

P.51-2

).

• Engine Oil Refilling (Refer to 

P.12-3

).

AC310319

8

6

4

3

2

1

N

1

N

3

5

N

7

N

AB

12 ± 2 N·m

12 ± 2 N·m

12 ± 2 N·m

42 ± 2 N·m

42 ± 2 N·m 

Removal steps 

1.

Engine oil cooler tube gaskets

2.

Engine oil cooler, bracket and hose 
assembly

3.

Engine oil cooler brackets

4.

Engine oil cooler feed hose

5.

Engine oil cooler tube gaskets

6.

Engine oil cooler return hose

7.

Engine oil cooler tube gaskets

8.

Engine oil cooler

Removal steps (Continued)

15-1

GROUP 15

INTAKE AND 

EXHAUST

CONTENTS

GENERAL INFORMATION . . . . . . . .

15-2

SERVICE SPECIFICATIONS. . . . . . .

15-2

SPECIAL TOOL . . . . . . . . . . . . . . . . .

15-2

ON-VEHICLE SERVICE. . . . . . . . . . .

15-2

TURBOCHARGER SUPERCHARGING 

 

PRESSURE CHECK. . . . . . . . . . . . . . . . . . 

15-2

SUPERCHARGING PRESSURE CONTROL 

 

SYSTEM CHECK . . . . . . . . . . . . . . . . . . . . 

15-3

WASTE GATE ACTUATOR CHECK  . . . . . 

15-3

WASTE GATE SOLENOID VALVE CHECK

15-4

AIR BY-PASS VALVE CHECK . . . . . . . . . . 

15-4

INLET MANIFOLD VACUUM CHECK  . . . . 

15-4

AIR CLEANER . . . . . . . . . . . . . . . . . .

15-5

REMOVAL AND INSTALLATION  . . . . . . . . 

15-5

INTERCOOLER  . . . . . . . . . . . . . . . . .

15-6

REMOVAL AND INSTALLATION  . . . . . . . . 

15-6

INLET MANIFOLD  . . . . . . . . . . . . . . .

15-7

REMOVAL AND INSTALLATION  . . . . . . . . 

15-7

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 

15-9

EXHAUST MANIFOLD AND 
TURBOCHARGER . . . . . . . . . . . . . . .

15-10

REMOVAL AND INSTALLATION  . . . . . . . . 

15-10

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 

15-12

EXHAUST PIPE AND MAIN MUFFLER

15-13

REMOVAL AND INSTALLATION  . . . . . . . . 

15-13

GENERAL INFORMATION

INTAKE AND EXHAUST

15-2

GENERAL INFORMATION

M1151000100480

SUPERCHARGING PRESSURE CON-
TROL

By controlling the duty of the waste gate solenoid 
valve, the waste gate actuator functions to control 
the supercharging pressure. This allows a super-
charged pressure matching the engine operation 
state to be attained. Control is carried out to prevent 
excessive supercharging and thereby prevent engine 
damage.

SERVICE SPECIFICATIONS

M1151000300699

Item

Standard value

Limit

Turbocharger supercharging pressure 
(waste gate solenoid valve not operating) kPa

96 

− 121

−

Initial activation pressure of waste gate actuator 
(at the stroke of approximately 1 mm) kPa

Approximately 100 −

Waste gate solenoid valve coil resistance (at 20

°C) Ω

29 

− 35

−

Initial activation pressure of air bypass valve kPa

Approximately 59

−

Manifold distortion of the installation surface mm

0.15 or less

0.20

SPECIAL TOOL

M1151000600463

Tool

Number

Name

Use

MD998770

Oxygen sensor wrench

Removal and installation of 
oxygen sensor

ON-VEHICLE SERVICE

TURBOCHARGER SUPERCHARGING 
PRESSURE CHECK

M1151001000282

CAUTION

Two persons should be in the vehicle when the 
test is conducted; the person in the passenger 
seat should read the indications shown by the 
pressure meter.

AK305234

Plug

Waste gate 
actuator

Vacuum
terminal

AB