Mitsubishi Galant 9G. Manual - part 597

PISTON AND CONNECTING ROD

TSB Revision

ENGINE OVERHAUL <2.4L ENGINE>

11B-60

2. Check for clearance between the piston ring and ring 

groove. If it exceeds the limit, replace the ring or piston, or 
both.

Standard value:

Number 1: 0.03 

− 0.07 mm (0.0012 − 0.0027 inch)

Number 2: 0.02 

− 0.06 mm (0.0008 − 0.0023 inch)

Limit: 0.1 mm (0.003 inch)

3. Insert the piston ring into the cylinder bore. Force the ring 

down with a piston, the piston crown being in contact with 
the ring, to correctly position it at right angles to the cylinder 
wall. Then, measure the end gap with a feeler gauge. 
If the ring gap is excessive, replace the piston ring.

Standard value: 

Number 1: 0.15 

− 0.30 mm (0.006 − 0.012 inch)

Number 2: 0.28 

− 0.43 mm (0.011 − 0.017 inch)

Oil: 0.10 

− 0.40 mm (0.003 − 0.015 inch)

Limit:

Number 1, Number 2: 0.8 mm (0.03 inch)
Oil: 1.0 mm (0.03 inch)

.

CRANKSHAFT PIN OIL CLEARANCE <PLASTIC 
GAUGING MATERIAL METHOD>

1. Remove oil from the crankshaft pin and the connecting rod 

bearing.

2. Cut plastic gauging material to the same length as the width 

of the bearing and place it on the pin, parallel with its axis.

3. Install the connecting rod cap carefully and tighten the nuts 

to the specified torque.

4. Carefully remove the connecting rod cap.

5. Measure the width of the plastic gauging material at its 

widest part by using a scale printed on the plastic gauging 
material package.

Standard value: 0.02 

− 0.05 mm (0.0008 − 0.0019 inch)

Limit: 0.1 mm (0.003 inch)

AK300195

AK301481AC

PISTON RING PISTON RING GAP

PUSH IN BY 
PISTON

AK300196

PLASTIC GAUGING
MATERIAL

AC

AK300197

PLASTIC GAUGING
MATERIAL

AC

CRANKSHAFT AND CYLINDER BLOCK

TSB Revision

ENGINE OVERHAUL <2.4L ENGINE>

11B-61

CRANKSHAFT AND CYLINDER BLOCK

REMOVAL AND INSTALLATION

M1113008700660

CAUTION

Do not remove the block heater unless it is damaged, because it cannot be re-used once it is 

removed.

AK303218AC

2

3

4

5

6

7

8

10

9

11

12

13

14

15

17

11 ± 1 N·m
98 ± 8 in-lb

132 ± 5 N·m
98 ± 3 ft-lb

25 ± 2 N·m
18 ± 1 ft-lb

APPLY ENGINE OIL
TO ALL MOVING
PARTS BEFORE
INSTALLATION.

1

9.0 ± 1.0 N·m
80 ± 8 in-lb

11 ± 1 N·m
98 ± 8 in-lb

→ + 90˚

25 ± 2 N·m
18 ± 1 ft-lb → 

+ 90˚

16

2.6 ± 0.2 N·m
23 ± 1 in-lb

REMOVAL STEPS

1.

DRIVE PLATE BOLT

2.

ADAPTER PLATE

3.

DRIVE PLATE

4.

CRANKSHAFT BUSHING

5.

REAR PLATE

6.

BELL HOUSING COVER

>>F<<

7.

OIL SEAL CASE

>>E<<

8.

OIL SEAL

>>D<<

9.

BEARING CAP BOLT (HEAD 17)

>>D<<

10.

BEARING CAP BOLT (HEAD 14)

>>D<<

11.

BEARING CAP

>>C<<

12.

CRANKSHAFT BEARING (LOWER)

13.

CRANKSHAFT

>>C<<

14.

CRANKSHAFT BEARING (UPPER)

>>B<<

15.

CRANKSHAFT THRUST BEARING

>>A<<

16.

BLOCK HEATER

17.

CYLINDER BLOCK

REMOVAL STEPS (Continued)

CRANKSHAFT AND CYLINDER BLOCK

TSB Revision

ENGINE OVERHAUL <2.4L ENGINE>

11B-62

Required Special Tools:

• MB990938: Handle

• MD998776: Crankshaft Rear Oil Seal Installer

INSTALLATION SERVICE POINTS

.

>>A<< BLOCK HEATER INSTALLATION

Within 30

° of the center, install the block heater as shown in 

Fig.

.

>>B<< CRANKSHAFT THRUST BEARING 
INSTALLATION

1. Install the two thrust bearings in the number 3 bearing bore 

in the cylinder block. For easier installation, apply engine oil 
to the bearings; this will help hold them in position.

2. The thrust bearings must be installed with their grooved side 

facing toward the crankshaft web.

.

>>C<< CRANKSHAFT BEARING INSTALLATION

When bearing replacement is required, select and install the 
correct bearing by the following procedure.
1. Measure the crankshaft journal diameter and confirm its 

classification from the following table. In the case of a 
crankshaft supplied as a service part, identification marks of 
its journals are stamped at the positions shown in the 
illustration.

AK303774AB

TIMING BELT SIDE

30

˚

30

˚

AK301467

GROOVE

AC

AK202908

LOCATION OF CRANKSHAFT JOURNAL 
DIAMETER MARKS

No. 3

No. 1

No. 2

No. 5

No. 4

AD

CRANKSHAFT AND CYLINDER BLOCK

TSB Revision

ENGINE OVERHAUL <2.4L ENGINE>

11B-63

2. The cylinder block bearing bore diameter identification 

marks are stamped at the position shown in the illustration 
from left to right, beginning at No.1.

For example, if the crankshaft journal outside diameter identifi-
cation mark is "0" and cylinder block bearing bore identification 
mark is "1," select a bearing whose identification mark is "2" for 
number 1, 2, 4 and 5, and a bearing whose identification mark 
is "1" for number 3.
If there is no identification mark on the crankshaft, measure the 
journal outside diameter and select a bearing appropriate for 
the measured value.

3. Install the bearings having an oil groove to the cylinder 

block.

4. Install the bearings having no oil groove to the bearing cap.

.

AK300198

TIMING BELT SIDE

No. 1

No. 2 No. 3

No. 4

No. 5

AC

CYLINDER BORE 
IDENTIFICATION
MARK

CRANKSHAFT JOURNAL OUTSIDE 
DIAMETER

CYLINDER BLOCK 
BEARING BORE

CRANKSHAFT 
BEARING

CRANKSHAFT 
BEARING FOR 
NO.3

IDENTIFICATION 
MARK

SIZE mm (in)

IDENTIFICATION 
MARK

IDENTIFICATION 
MARK

IDENTIFICATION 
MARK

0

56.994 

− 57.000 

(2.2439 

− 2.2441)

0

1

0

1

2

1

2

3

2

1

56.988 

− 56.994 

(2.2436 

− 2.2439)

0

2

1

1

3

2

2

4

3

2

56.982 

− 56.988 

(2.2434 

− 2.2436)

0

3

2

1

4

3

2

5

4

AK300397

IDENTIFICATION
MARK POSITION

AE

AK301466

GROOVE

FOR LOWER

FOR UPPER

AC