Mitsubishi Evolution X. Manual - part 249

ENGINE OIL PRESSURE SWITCH

TSB Revision

ENGINE LUBRICATION

12-7

ENGINE OIL PRESSURE SWITCH

REMOVAL AND INSTALLATION

M1121002500511

Pre-removal and post-installation operation
• Engine Room Under Cover Front A, B and Engine Room 

Under Cover Center Removal and Installation (Refer to 

GROUP 51, Under Cover 

P.51-16

).

AC709399AB

1

5

3

4

10 ± 2 N·m
89 ± 17 in-lb

23 ± 6 N·m
17 ± 4 ft-lb  

2

Removal steps 

1.

Engine control wiring harness 
clamp connection

2.

Starter wiring harness clamp

3.

Intake manifold stay (front)

4.

Oil pressure switch connector 
connection

<<

A

>>

>>

A

<<

5.

Oil pressure switch

Required Special Tool:

• MB992118: Oil Pressure Switch Wrench

Removal steps (Continued)

ENGINE OIL PRESSURE SWITCH

TSB Revision

ENGINE LUBRICATION

12-8

REMOVAL SERVICE POINT

.

<<A>> OIL PRESSURE SWITCH REMOVAL

CAUTION

The sealant is applied to the bolt. Remove the bolt with 
care not to break it.

AK502606 AD

MB992118

Use special tool oil pressure switch wrench (MB992118) to 
remove the oil pressure switch.

INSTALLATION SERVICE POINT

.

>>A<< OIL PRESSURE SWITCH INSTALLATION

AK402699

1 mm
(0.04 in)

5 mm
(0.2 in)

AD

1. Apply sealant to the oil pressure switch thread.

Specified sealant: Three bond 1215 or equivalent

CAUTION

Do not start the engine until 2 hours or more have elapsed 
after installing the oil pressure switch.

AK502606 AD

MB992118

2. In the same manner as removal, use special tool oil 

pressure switch wrench (MD992118) to tighten the oil 
pressure switch to the specified torque.

Tightening torque: 10 

± 2 N⋅ m (89 ± 17 in−lb)

NOTE: Within 3 minutes after the application of sealant, 
install the oil pressure switch.

ENGINE OIL COOLER

TSB Revision

ENGINE LUBRICATION

12-9

ENGINE OIL COOLER

REMOVAL AND INSTALLATION

M1121001300581

Pre-removal operation
• Engine Room Under Cover Front A, B, Engine Room 

Under Cover Center and Engine Room Side Cover (RH) 

Removal (Refer to GROUP 51, Under Cover 

P.51-16

).

• Front Bumper and Radiator Grille Assembly Removal 

(Refer to GROUP 51, Front Bumper Assembly and Radia-

tor Grille 

P.51-3

).

Post-installation operation
• Front Bumper and Radiator Grille Assembly Installation 

(Refer to GROUP 51, Front Bumper Assembly and Radia-

tor Grille 

P.51-3

).

• Engine Room Under Cover Front A, B, Engine Room 

Under Cover Center and Engine Room Side Cover (RH) 

Installation (Refer to GROUP 51, Under Cover 

P.51-16

).

• Engine Oil Refilling (Refer to 

P.12-5

).

AC710563

1

3

7

N

AB

2

5

6

4

8

11

9

N

12

14

13

N

10

11 ± 2 N·m
93 ± 22 in-lb

26 ± 6 N·m
20 ± 4 ft-lb

12 ± 3 N·m
107 ± 26 in-lb

26 ± 6 N·m
20 ± 4 ft-lb

26 ± 6 N·m
20 ± 4 ft-lb

12 ± 3 N·m
107 ± 26 in-lb

32 ± 2 N·m
23 ± 2 ft-lb

32 ± 2 N·m
23 ± 2 ft-lb

9.5 ± 2.5 N·m
85 ± 22 in-lb

4.0 ± 2.0 N·m
36 ± 17 in-lb

13

N

3

N

10

Removal steps 

1.

Engine oil cooler air guide

2.

Eye bolt

3.

Gasket

4.

Engine oil cooler assembly

5.

Engine oil cooler bracket (RH)

6.

Engine oil cooler

7.

Engine oil cooler bracket (LH)

8.

Eye bolt

9.

Gasket

10. Hose clamp
11. Engine oil cooler return hose
12. Eye bolt
13. Gasket
14. Engine oil cooler feed hose

Removal steps (Continued)

OIL PUMP CHAIN

TSB Revision

ENGINE LUBRICATION

12-10

OIL PUMP CHAIN

REMOVAL AND INSTALLATION

M1121003100044

Pre-removal and post-installation operation
• Timing Chain Removal and Installation (Refer to GROUP 

11A, Timing Chain 

P.11A-69

).

AC704362

1

2

5

6

7

AD

3

4

10 ± 2 N·m
89 ± 17 in-lb

23 ± 2 N·m
17 ± 1 ft-lb

10 ± 2 N·m
89 ± 17 in-lb

Apply engine oil to all
moving parts before
installation.

Removal steps 

1.

Balancer timing chain guide

2.

Engine oil pump chain tensioner

<<

A

>>

3.

Engine oil pump sprocket center 
bolt

<<

A

>>

4.

Engine oil pump drive chain and 
engine oil pump sprocket

>>

B

<<

5.

Engine oil pump drive chain

>>

B

<<

6.

Engine oil pump sprocket

>>

A

<<

7.

Crankshaft sprocket

Required Special Tool:

• MB991346: Top Cover Wrench

Removal steps (Continued)