Mitsubishi Eclipse. Manual — part 885

PISTON AND CONNECTING ROD

TSB Revision

ENGINE OVERHAUL <3.0L>

11D-49

4. Use suitable thread protectors on the connecting rod bolts

before inserting the piston and connecting rod assembly into
the cylinder block.
Care must be taken not to nick the crank pin.

5. Insert the piston and connecting rod assembly into the

cylinder with the front mark on the piston crown pointing to
the timing belt side.

6. Using a suitable piston ring compressor tool, install the

piston and connecting rod assembly into the cylinder block.

.

>>E<< CONNECTING ROD CAP INSTALLATION
1. Mate the correct bearing cap with the correct connecting rod

by checking with the alignment marks marked during
disassembly. If a new connecting rod is used which has no
alignment mark, position the notches for locking the bearing
on the same side.

2. Check if the thrust clearance in the connecting rod big end is

correct.

Standard value: 0.10

− 0.25 mm (0.004 − 0.009 inch)

Limit: 0.4 mm (0.02 inch)

INSPECTION

M1113008500194

.

PISTON
Replace the piston if scratches or seizure is evident on its sur-
faces (especially the thrust surface). Replace the piston if it is
cracked.

.

PISTON PIN
1. Insert the piston pin into the piston pin hole with your thumb.

You should feel a slight resistance. Replace the piston pin if
it can be easily inserted or there is an excessive play.

2. The piston and piston pin must be replaced as an assembly.

.

PISTON RING
1. Check the piston ring for damage, excessive wear, and

breakage. Replace if defects are evident. If the piston has
been replaced, the piston rings must also be replaced.

AKX00721

AKX00735

CYLINDER NO.

NOTCHES

AB

AKX00736

PISTON AND CONNECTING ROD

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ENGINE OVERHAUL <3.0L>

11D-50

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:

<With variable inducation system>

Number 1: 0.25

− 0.35 mm (0.010 − 0.014 inch)

Number 2: 0.35

− 0.50 mm (0.014 − 0.020 inch)

Oil: 0.10

− 0.35 mm (0.004 − 0.014 inch)

<Without variable inducation system>

Number 1: 0.30

− 0.45 mm (0.012 − 0.018 inch)

Number 2: 0.45

− 0.60 mm (0.018 − 0.024 inch)

Oil: 0.20

− 0.60 mm (0.008 − 0.024 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 in 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)

AKX00612

AKX00719

PUSH IN BY
PISTON

PISTON
RING GAP

PISTON RING

AB

AKX00731AB

SCALE

AKX00609

CRANKSHAFT AND CYLINDER BLOCK

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ENGINE OVERHAUL <3.0L>

11D-51

CRANKSHAFT AND CYLINDER BLOCK

REMOVAL AND INSTALLATION

M1113008700574

CAUTION

On the flexible flywheel equipped engines, do not remove any of the bolts "A" of the flywheel shown
in the illustration. The balance of the flexible flywheel is adjusted in an assembled condition. Remov-
ing the bolt, therefore, can cause the flexible flywheel to be out of balance and result in damage.

AKX00683

11

APPLY ENGINE OIL
TO ALL MOVING
PARTS BEFORE
INSTALLATION.

23 ± 2 N·m
17 ± 1 ft-lb

28 ± 2 N·m
21 ± 1 ft-lb

11 ± 1 N·m
95 ± 9 in-lb

74 ± 2 N·m
54 ± 1 ft-lb

11 ± 1 N·m
95 ± 9 in-lb

74 ± 2 N·m
54 ± 1 ft-lb

93 ± 5 N·m
69 ± 4 ft-lb

1

21

10

3

2

22

4

23

9

5

8

19

20

18

17

6

15

14

16

13

12

AB

7

REMOVAL STEPS

1. FLYWHEEL BOLT <M/T>
2. ADAPTER PLATE <M/T>
3. PLATE <M/T>
4. FLYWHEEL <M/T>
5. DRIVE PLATE BOLT <A/T>
6. ADAPTOR PLATE <A/T>
7. DRIVE PLATE <A/T>
8. REAR PLATE

>>F<<

9. OIL SEAL CASE ASSEMBLY

>>E<<

10.CRANKSHAFT REAR OIL SEAL
11.OIL SEAL CASE

>>D<<

12.BEARING CAP BOLT

>>D<<

13.BEARING CAP

>>C<<

14.THRUST BEARING A

>>C<<

15.THRUST BEARING B

>>B<<

16.CRANKSHAFT BEARING, LOWER
17.CRANKSHAFT

>>C<<

18.THRUST BEARING B

>>C<<

19.THRUST BEARING A

>>B<<

20.CRANKSHAFT BEARING, UPPER
21.KNOCK SENSOR

>>A<<

22.KNOCK SENSOR BRACKET
23.CYLINDER BLOCK

REMOVAL STEPS (Continued)

CRANKSHAFT AND CYLINDER BLOCK

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ENGINE OVERHAUL <3.0L>

11D-52

Required Special Tool:

• MD998718: Crankshaft Rear Oil Seal Installer

INSTALLATION SERVICE POINTS

.

>>A<< KNOCK SENSOR BRACKET INSTALLATION
Check that the bracket is in proper contact with the cylinder
block boss and tighten to the specified torque in the order
shown.

Tightening torque: 28

± 2 N⋅m (21 ± 1 ft-lb)

.

>>B<< 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
colors/marks of its journals are painted/stamped at the
positions shown in the illustration.

2. The cylinder block bearing bore diameter identification

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

AKX00649

TIMING BELT SIDE

AB

1

2

3

4

CRANKSHAFT JOURNAL
OUTSIDE DIAMETER

CYLINDER
BLOCK
BEARING BORE

CRANK SHAFT
BEARING

IDENTIFICA
TION
COLOR

SIZE mm (in)

IDENTIFICATION
COLOR MARK

IDENTIFICATION
COLOR

Yellow

59.990

− 59.996

(2.3618

− 2.3620)

I

Pink

II

Red

III

Green

None

59.984

− 59.990

(2.3616

− 2.3618)

I

Red

II

Green

III

Black

White

59.978

− 59.984

(2.3613

− 2.3616)

I

Green

II

Black

III

Brown

AKX00647

NO. 2
JOURNAL

LOCATION OF IDENTIFICATION COLOR

NO. 1
JOURNAL

NO. 3
JOURNAL

NO. 4
JOURNAL

AB

AKX00648

BEARING BORE
DIAMETER
IDENTIFICATION
MARK

CYLINDER INSIDE
DIAMETER SIZE MARK

TIMING BELT SIDE

AB

No.4

No.2

No.3

No.1