Mitsubishi Grandis. Manual — part 636

OIL PAN

ENGINE MECHANICAL

11A-21

2. Finger-tighten the engine cover mounting bolts in

the order shown in the figure so that the engine
cover can be moved by hand.

3. Tighten the engine cover mounting bolts to the

specified torque in the order shown.

Tightening torque: 3.0

± 0.5 N⋅m

OIL PAN

REMOVAL AND INSTALLATION

M1112002800826

Pre-removal Operation
• Engine Oil Draining (Refer to GROUP 12, On-vehicle

Service

− Engine Oil Replacement

P.12-3

).

• Front Exhaust Pipe Removal (Refer to GROUP 15,

Exhaust Pipe and Main Muffler

P.15-9

).

• Catalytic Converter Removal (Refer to GROUP 15,

Exhaust pipe and main muffler

P.15-9

).

Post-installation Operation
• Catalytic Converter Removal (Refer to GROUP 15,

Exhaust pipe and main muffler

P.15-9

).

• Front Exhaust Pipe Installation (Refer to GROUP 15,

Exhaust Pipe and Main Muffler

P.15-9

).

• Engine Oil Refilling (Refer to GROUP 12, On-vehicle

Service

− Engine Oil Replacement

P.12-3

).

AC310839

7

1

9

N

19 ± 3 N·m

8.0 ± 1.0 N·m

9.0 ± 1.0 N·m

AB

2

3

4

39 ± 5 N·m

5

8

6

N

22 ± 4 N·m

44 ± 10 N·m

9.0 ± 3.0 N·m

9.0 ± 3.0 N·m

9.0 ± 2.0 N·m

39 ± 5 N·m

10

Removal steps

1.

Engine oil pan oil level sensor
connector

2.

Engine oil pan oil level sensor

>>C<<

3.

Transmission housing front lower
cover stay

4.

Flywheel housing front lower cover
<M/T> or torque converter housing
front lower cover <A/T>

5.

Engine oil pan drain plug

>>B<<

6.

Engine oil pan drain plug gasket

<<A>>

>>A<<

7.

Engine oil pan

8.

Engine oil pan strainer

Removal steps (Continued)

OIL PAN

ENGINE MECHANICAL

11A-22

REMOVAL SERVICE POINT
<<A>> ENGINE OIL PAN REMOVAL

1. Remove the engine oil pan mounting bolts.

CAUTION

Do not use special tool MD998727 in area A of the
engine oil pan. Using the special tool in area A
may cause deformation of the front case because
the front case is made of aluminium.
2. Tap special tool MD998727 into the range (B)

between the cylinder block and the engine oil pan,
and then slide the tool sideways.
NOTE: If any sounding parts interfere with the
removal, there is no need to use special tool
MD998727.

3. Remove the engine oil pan.

INSTALLATION SERVICE POINTS
>>A<< ENGINE OIL PAN INSTALLATION

1. Remove sealant from the engine oil pan, front

case and cylinder block surfaces.

2. Apply a bead of the sealant to the cylinder block

mating surface of the engine oil pan as shown.

Specified sealant: MITSUBISHI GENUINE
PART MD970389 or equivalent

NOTE: Install the engine oil pan within 15 minutes
after applying sealant.

3. Assemble the engine oil pan to the cylinder block.

CAUTION

Wait at least one hour. Never start the engine or
let engine oil or coolant touch the sealant surface
during that time.

4. Tighten the engine oil pan mounting bolts to the

specified torque. Be careful when installing, as the
bolts indicated in the illustration have different
lengths from the other bolts.

Tightening torque: 9.0

± 3.0 N⋅m

>>B<< ENGINE OIL PAN DRAIN PLUG
GASKET INSTALLATION

9.

Engine oil pan strainer gasket

10. Baffle plate

Removal steps (Continued)

AC301325

A

B

AB

AC104547

MD998727

MD998727

AC

AC301326AB

4 mm

Groove

portion

Bolt hole

portion

AC301327AB

M6

φ 8 mm

AC102325 AF

Engine lower
oil pan side

CRANKSHAFT OIL SEAL

ENGINE MECHANICAL

11A-23

Replace the gasket with a new gasket. Install the
new gasket in the direction shown in the illustration.

>>C<< TRANSMISSION HOUSING FRONT
LOWER COVER STAY INSTALLATION

Install the transmission housing front lower cover
stay as follows.
1. Tighten four mounting bolts of the engine side by

hand.

2. Tighten three mounting bolts of the transmission

side to the specified torque.

Tightening: 44

± 10 N⋅m

3. Tighten four mounting bolts of the engine side to

the specified torque.

Tightening: 22

± 4 N⋅m

INSPECTION

M1112002900276

• Check the oil pan for cracks.

• Check the oil pan sealant-coated surface for

damage and deformation.

CRANKSHAFT OIL SEAL

REMOVAL AND INSTALLATION

M1112003100455

<M/T>

AC312951

AC

(Lip section)

Engine oil

AB

(Lip section)

3

9

1

3

N

2

9

8

7

6

4

N

132 ± 5 N·m

5

Crankshaft front oil seal removal
steps

•

Valve timing belt, balancer timing
belt (Refer to

P.11A-33

).

>>D<<

1.

Crankshaft balancer shaft drive
sprocket

2.

Crankshaft key

>>C<<

3.

Crankshaft front oil seal

Crankshaft front oil seal removal
steps (Continued)

CRANKSHAFT OIL SEAL

ENGINE MECHANICAL

11A-24

<A/T>

Crankshaft rear oil seal removal
steps

<<A>>

•

Transmission assembly

<<B>>

>>B<<

4.

Flywheel bolts

5.

Flywheel adapter plate

6.

Flywheel assembly

7.

Flywheel adapter plate

8.

Crankshaft bush

>>A<<

9.

Crankshaft rear oil seal

Crankshaft rear oil seal removal
steps (Continued)

AC312953

1

2

3

N

8

7

6

5

4

N

132 ± 5 N·m

AB

(Lip section)

Engine oil

(Lip section)

3

8

Crankshaft front oil seal removal
steps

•

Valve timing belt, balancer timing
belt (Refer to

P.11A-33

).

>>D<<

1.

Crankshaft balancer shaft drive
sprocket

2.

Crankshaft key

>>C<<

3.

Crankshaft front oil seal

Crankshaft rear oil seal removal
steps

•

Transmission assembly (Refer to
GROUP 23A, Transmission
Assembly

P.23A-147

).

<<B>>

>>B<<

4.

A/T drive plate bolts

5.

A/T drive plate adapter plate

6.

A/T drive plate

7.

Crankshaft bush

>>A<<

8.

Crankshaft rear oil seal