Mitsubishi Lancer (4A9 engine). Manual — part 31
OIL PAN
ENGINE MECHANICAL <4A9>
11A-38
CAUTION
As oil leak is likely to occur at both ends of the
rear side of the engine oil pan, be sure to apply
the specified sealant as shown.
AC403646
AC
5.5 mm
5.5 mm
Engine oil pan
Both engine oil pan rear side edge parts
2 mm
4 mm
2. Apply a bead of the sealant to the cylinder block
mating surface of the engine oil pan as shown.
Specified sealant: ThreBond 1217G or equiv-
alent
NOTE: Install the engine oil pan immediately after
the application of sealant.
CAUTION
After the installation, until a sufficient period of
time (one hour or more) elapses, do not apply the
engine oil or water to the sealant application area
or start the engine.
3. Tighten the engine oil pan mounting bolts to the
specified torque.
Tightening torque: 11
± 3 N⋅m
INSPECTION
M1112002900889
• Check the engine oil pan for cracks.
• Check the engine oil pan sealant-coated surface
for damage and deformation.
CRANKSHAFT OIL SEAL
ENGINE MECHANICAL <4A9>
11A-39
CRANKSHAFT OIL SEAL
REMOVAL AND INSTALLATION
M1112003104231
ACA00943AC
2
100 ± 5 N·m
11 ± 3 N·m
11
N
3
1
N
Seating surface: Engine oil
Thread: LOCTITE 2701 or equivalent
2, 4, 8
(Engine oil)
(Engine oil)
5
6
7
9
10
4
100 ± 5 N·m
8
100 ± 5 N·m
<Euro5-M/T>
<A/T>
<Euro4-M/T>
Crankshaft front oil seal removal
steps
•
Crankshaft damper pulley (Refer to
)
>>
C
<<
1.
Crankshaft front oil seal
Crankshaft rear oil seal removal
steps <Euro4-M/T>
•
Transmission assembly (Refer to
GROUP 22A
− Transmission
Assembly )
•
Clutch cover and clutch disc (Refer
to GROUP 21E
− Clutch )
•
Engine oil pan (Refer to )
<<
A
>>
>>
B
2.
Flywheel bolt
>>
B
3.
Flywheel assembly
>>
A
11. Crankshaft rear oil seal case
assembly
Crankshaft rear oil seal removal
steps <Euro5-M/T>
•
Transmission assembly (Refer to
GROUP 22A
− Transmission
Assembly )
•
Clutch cover and clutch disc (Refer
to GROUP 21E
− Clutch )
•
Engine oil pan (Refer to )
Crankshaft rear oil seal removal
steps <Euro4-M/T> (Continued)
CRANKSHAFT OIL SEAL
ENGINE MECHANICAL <4A9>
11A-40
REMOVAL SERVICE POINT
<<A>> FLYWHEEL BOLT <M/T>/DRIVE PLATE
BOLT <A/T> REMOVAL
AK305392AF
MD998781
Cylinder block
Flywheel assembly or
Drive plate assembly
1. Fix the flywheel assembly <M/T> or drive plate
assembly <A/T> using special tool flywheel
stopper (MD998781).
2. Remove the flywheel bolts <M/T> or drive plate
bolts <A/T>.
INSTALLATION SERVICE POINTS
>>A<< CRANKSHAFT REAR OIL SEAL CASE
ASSEMBLY INSTALLATION
1. Remove sealant from the crankshaft rear oil seal
case assembly mounting surface of the cylinder
block, and degrease the surface where the
sealant is applied.
AC311772
AD
Cylinder block
A
A
B
B
Section A - A
Section B - B
1 mm
3.5 mm
2 mm
2 mm
2. Apply a bead of specified sealant to the
crankshaft rear oil seal case assembly mating
surface of the cylinder block as shown.
Specified sealant: ThreeBond 1217G or
equivalent
NOTE: Install the crankshaft rear oil seal case
assembly immediately after applying sealant.
CAUTION
• Install the crankshaft rear oil seal case
assembly not to damage the crankshaft rear
oil seal.
• After the installation, until a sufficient period
of time (one hour or more) elapses, do not
apply the engine oil or water to the sealant
application area or start the engine.
3. Install the crankshaft rear oil seal case assembly
to the cylinder block.
4. Tighten the crankshaft rear oil seal case assembly
mounting bolts to the specified torque.
Tightening torque: 11
± 3 N⋅m
>>B<< DRIVE PLATE ASSEMBLY <A/T>/
ADAPTER PLATE <A/T>/DRIVE PLATE BOLT <A/
T>/FLYWHEEL ASSEMBLY <M/T>/FLYWHEEL
BOLT <M/T> INSTALLATION
1. Remove the sealant, engine oil, and other
adhering materials from the flywheel assembly
<M/T> or drive plate assembly <A/T> installation
face, adapter plate <A/T>, crankshaft screw hole,
and flywheel bolts <M/T> or drive plate bolts <A/
T>.
<<
A
>>
>>
B
<<
4.
Flywheel bolt
>>
B
<<
5.
Adapter plate
>>
B
<<
6.
Flywheel assembly
>>
B
<<
7.
Adapter plate
>>
A
<<
11. Crankshaft rear oil seal case
assembly
Crankshaft rear oil seal removal
steps <A/T>
•
Transmission assembly (Refer to
GROUP 23C
− Transmission
Assembly )
•
Engine oil pan (Refer to )
<<
A
>>
>>
B
<<
8.
Drive plate bolt
>>
B
<<
9.
Adapter plate
>>
B
<<
10. Drive plate assembly
>>
A
<<
11. Crankshaft rear oil seal case
assembly
Crankshaft rear oil seal removal
steps <Euro5-M/T> (Continued)
CRANKSHAFT OIL SEAL
ENGINE MECHANICAL <4A9>
11A-41
2. Install the flywheel assembly <M/T> or drive plate
assembly <A/T> to the crankshaft.
AK305392AF
MD998781
Cylinder block
Flywheel assembly or
Drive plate assembly
3. Fix the flywheel assembly <M/T> or drive plate
assembly <A/T> using special tool flywheel
stopper (MD998781) in the same manner as
removal.
AC609795AF
4. Apply a small amount of engine oil to the
installation face of the flywheel bolts <M/T> or
drive plate bolts <A/T>.
5. Apply specified sealant to the flywheel bolts <M/
T> or drive plate bolts <A/T> threads.
Specified sealant: LOCTITE 2701 or equiva-
lent
AC701224
1
2
3
4
5
6
AB
6. Tighten the flywheel bolts <M/T> or drive plate
bolts <A/T> to the specified torque in two or three
steps in the order shown in the illustration.
Tightening torque: 100
± 5 N⋅m
>>C<< CRANKSHAFT FRONT OIL SEAL
INSTALLATION
AC311773
AB
MB990699
(Engine oil)
Oil seal
MB991993
Crankshaft
1. Apply a small amount of engine oil to the outer
circumference of special tool crankshaft front oil
seal guide (MB991993) and install it to the
crankshaft.
2. Apply a small amount of engine oil to the entire
inner circumference of the oil seal lip.
CAUTION
When installing the crankshaft front oil seal, be
careful to avoid damage to the crankshaft front
oil seal.
3. Using special tool differential oil seal installer
(MB990699), drive the oil seal so that it is flush
with the timing chain case assembly.
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