Mitsubishi Outlander GS45X. Manual - part 1212

11D-1

GROUP 11D

ENGINE OVERHAUL 

<3.0L ENGINE>

CONTENTS

GENERAL SPECIFICATIONS . . . . . .

11D-2

SERVICE SPECIFICATIONS. . . . . . .

11D-2

FASTENER TIGHTENING 

 

SPECIFICATIONS . . . . . . . . . . . . . . .

11D-5

SEALANTS AND ADHESIVES . . . . .

11D-8

SPECIAL TOOLS. . . . . . . . . . . . . . . .

11D-9

GENERATOR AND DRIVE BELT . . .

11D-12

REMOVAL AND INSTALLATAION . . . . . . . 

11D-12

INTAKE MANIFOLD PLENUM AND 
THROTTLE BODY ASSEMBLY  . . . .

11D-15

REMOVAL AND INSTALLATION . . . . . . . . 

11D-15

TIMING BELT. . . . . . . . . . . . . . . . . . .

11D-18

REMOVAL AND INSTALLATION . . . . . . . . 

11D-18

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

11D-23

INTAKE MANIFOLD  . . . . . . . . . . . . .

11D-26

REMOVAL AND INSTALLATION . . . . . . . . 

11D-26

WATER HOSE AND PIPE . . . . . . . . .

11D-29

REMOVAL AND INSTALLATION  . . . . . . . . 

11D-29

EXHAUST MANIFOLD . . . . . . . . . . . .

11D-33

REMOVAL AND INSTALLATION  . . . . . . . . 

11D-33

ROCKER COVER AND CAMSHAFT .

11D-36

REMOVAL AND INSTALLATION  . . . . . . . . 

11D-36

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

11D-41

CYLINDER HEAD AND VALVES. . . .

11D-45

REMOVAL AND INSTALLATION  . . . . . . . . 

11D-45

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

11D-49

OIL PAN AND OIL PUMP. . . . . . . . . .

11D-53

REMOVAL AND INSTALLATION  . . . . . . . . 

11D-53

PISTON AND CONNECTING ROD  . .

11D-62

REMOVAL AND INSTALLATION  . . . . . . . . 

11D-62

PISTON AND CONNECTING ROD 

 

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

11D-69

CRANKSHAFT AND 

 

CYLINDER BLOCK  . . . . . . . . . . . . . .

11D-71

REMOVAL AND INSTALLATION  . . . . . . . . 

11D-71

CYLINDER BLOCK INSPECTION  . . . . . . . 

11D-77

GENERAL SPECIFICATIONS

TSB Revision

ENGINE OVERHAUL <3.0L ENGINE>

11D-2

GENERAL SPECIFICATIONS

M1113000202571

SERVICE SPECIFICATIONS

M1113000303117

Descriptions

Specifications

Engine model

6B31

Type

60

° V, SOHC

Number of cylinders

6

Combustion chamber

Pentroof type

Total displacement cm

3

 (cu in)

2,998 (182.9)

Cylinder bore mm (in)

87.6 (3.45)

Piston stroke mm (in)

82.9 (3.54)

Compression ratio

10.5

Valve timing

Intake valve

Opens 

-1

°BTDC − 18°BTDC

Closes 

37

°ABDC − 86°ABDC

Exhaust valve

Opens 

55

°BBDC

Closes 

20

°ATDC

Lubrication system

Pressure feed, full-flow filtration

Oil pump type

Trochoid type

Item

Standard value

Limit

Timing belt

Auto tensioner rod length mm (in)

9.1 

− 13.4

(0.36 

− 0.52)

−

Valve clearance mm (in)

0.07 

− 0.13

(0.003 

− 0.005)

−

Rocker cover and camshaft

Camshaft cam height mm (in)

Intake

Low speed 
cam

37.28 (1.468)

Minimum 36.78 (1.448)

High speed 
cam

36.23 (1.426)

Minimum 35.73 (1.407)

Exhaust

37.84 (1.490)

Minimum 37.34 (1.470)

Camshaft journal outside diameter mm (in)

45 (1.8)

−

SERVICE SPECIFICATIONS

TSB Revision

ENGINE OVERHAUL <3.0L ENGINE>

11D-3

Cylinder head and valves

Cylinder head flatness of gasket surface mm (in)

Less than 0.03 (0.0012)  0.05 (0.002)

Cylinder head grinding limit of gasket surface mm (in) 
(Total resurfacing depth of cylinder head and cylinder 
block)

−

0.15 (0.006)

Cylinder head overall height mm (in)

120 (4.7)

−

Valve thickness of valve head 
(margin) mm (in)

Intake

1.0 (0.03)

Minimum 0.5 (0.02)

Exhaust

1.2 (0.04)

Minimum 0.7 (0.03)

Valve overall height mm (in)

Intake

111.84 (4.403)

Minimum 111.34 
(4.384)

Exhaust

114.04 (4.490)

Minimum 113.54 
(4.470)

Valve spring free height mm (in)

Intake

63.77 (2.511)

Minimum 62.77 (2.471)

Exhaust

59.90 (2.358)

Minimum 58.90 (2.319)

Valve spring out-of-squareness

2

° or less

4

°

Valve spring load / installed height N (lb) / mm (in)

245.2 (55.13) / 49.2 
(1.94)

−

Valve stem outside diameter mm (in)

6.0 (0.24)

−

Valve thickness to valve guide 
clearance mm (in)

Intake

0.020 

− 0.047

(0.0008 

− 0.0018)

0.10 (0.003)

Exhaust

0.035 

− 0.062

(0.0014 

− 0.0024)

0.15 (0.005)

Valve seat valve contact width mm (in)

0.9 

− 1.3

(0.04 

− 0.05)

−

Valve guide inside diameter mm (in)

6.0 (0.24)

−

Valve guide press-in height mm (in)

16.7 

− 17.3

(0.66 

− 0.68)

−

Oversize rework dimensions of 
valve guide hole mm (in)

0.05 oversize 
diameter

11.050 

− 11.068

(0.4351 

− 0.4357)

−

Intake oversize rework dimensions 
of valve seat hole mm (in)

0.3 oversize 
diameter

36.300 

− 36.325

(1.4292 

− 1.4301)

−

Exhaust oversize rework 
dimensions of valve seat hole mm 
(in)

0.3 oversize 
diameter

32.300 

− 32.325

(1.2717 

− 1.2726)

−

Item

Standard value

Limit

SERVICE SPECIFICATIONS

TSB Revision

ENGINE OVERHAUL <3.0L ENGINE>

11D-4

Piston and connecting rod

Piston outside diameter mm (in)

87.6 (3.45)

−

Piston ring side clearance mm (in) Number 1

0.04 

− 0.08

(0.0016 

− 0.0031)

0.1 (0.004)

Number 2

0.03 

− 0.07

(0.0012 

− 0.0027)

0.1 (0.004)

Piston ring end gap mm (in)

Number 1

0.18 

− 0.33

(0.008 

− 0.012)

0.8 (0.03)

Number 2

0.28 

− 0.48

(0.012 

− 0.018)

0.8 (0.03)

Oil ring side rail

0.10 

− 0.60

(0.004 

− 0.023)

1.0 (0.04)

Piston pin outside diameter mm (in)

22.0 (0.87)

−

Piston pin press-in load N (lb)

5,000 

− 15,000

(1,124 

− 3,372)

−

Crankshaft pin oil clearance mm (in)

0.012 

− 0.039

(0.0005 

− 0.0015)

0.1 (0.004)

Connecting rod big end side clearance mm (in)

0.10 

− 0.25

(0.004 

− 0.009)

0.4 (0.02)

Crankshaft and cylinder block

Crankshaft end play mm (in)

0.05 

− 0.25

(0.002 

− 0.009)

0.3 (0.01)

Crankshaft journal outside diameter mm (in)

69 (2.7)

−

Crankshaft pin outside diameter mm (in)

53 (2.1)

−

Crankshaft journal oil clearance 
mm (in)

Number1, 4 journal

0.018 

− 0.038

(0.0008 

− 0.0014)

0.1 (0.004)

Number2, 3 journal

0.024 

− 0.044

(0.0010 

− 0.0017)

0.1 (0.004)

Cylinder block flatness of gasket surface mm (in)

0.05 (0.002)

0.1 (0.004)

Cylinder block grinding limit of gasket surface mm (in) 
[Total resurfacing depth of both cylinder head and 
cylinder block]

−

0.15 (0.006)

Cylinder block overall height mm (in) [Crankshaft center 
to cylinder head top]

215 (8.46)

−

Cylinder block inside diameter mm (in)

87.6 (3.45)

−

Cylindricity mm (in)

0.015 (0.0006)

−

Item

Standard value

Limit