Mitsubishi Grandis. Manual — part 663

OIL PAN AND OIL PUMP

ENGINE OVERHAUL

11B-47

<<E>> COUNTERBALANCE SHAFT
FRONT BEARING REMOVAL

CAUTION

Be sure to remove the front bearing first. If it has
not been removed, special tool Silent shaft
bearing puller (MD998372) cannot be used for
rear balance shaft bearing removal.
Using special tool Silent shaft bearing puller
(MD998371), remove the counterbalance shaft front
bearing from the cylinder block.

<<F>> COUNTERBALANCE SHAFT REAR
BEARING REMOVAL

1. Using special tool Silent shaft bearing puller

(MD998372), remove the right counterbalance
shaft rear bearing from the cylinder block.

2. Using special tools, remove the left

counterbalance shaft rear bearing from the
cylinder block.

• Silent shaft bearing puller (MD998372)

• Bearing installer stopper (MB991603)

INSTALLATION SERVICE POINTS
>>A<< LEFT COUNTERBALANCE SHAFT
REAR BEARING INSTALLATION

1. Install special tool Silent shaft bearing installer

stopper (MB991603) to the cylinder block.

2. Apply engine oil to the rear bearing outer surface

and bearing hole in the cylinder block.

3. Using special tool Silent shaft bearing installer

(MD998705), install the rear bearing.
NOTE: The left rear bearing has no oil holes.

>>B<< RIGHT COUNTERBALANCE
SHAFT REAR BEARING INSTALLATION

1. Install special tool the guide pin of the Silent shaft

bearing installer (MD998705) in the threaded hole
of the cylinder block as shown.

AK300174

MD998371

AD

AK300175AD

MD998372

AK300176

MB991603

MD998372

AD

AK300177

MB991603

MD998705
(Stopper)

AD

AK300619AD

MB991603

MD998705
(Stopper)

Rear bearing

AK300178

MD998705(Guide pin)

AD

OIL PAN AND OIL PUMP

ENGINE OVERHAUL

11B-48

2. Align the ratchet ball of the special tool with the oil

hole in the rear bearing to install the bearing of the
special tool.

3. Apply engine oil to the bearing outer surface and

bearing hole in the cylinder block.

4. Using special tool, install the rear bearing. Make

sure that the oil hole of the bearing is aligned with
the oil hole of the cylinder block.

>>C<< COUNTERBALANCE SHAFT
FRONT BEARING INSTALLATION

1. Remove the rear bearing installing portion from

the special tool Silent shaft bearing installer
(MD998705).

2. Install special tool the guide pin of the Silent shaft

bearing installer (MD998705) in the threaded hole
of the cylinder block as shown.

3. Align the ratchet ball of the special tool with the oil

hole in the rear bearing to install the bearing of the
special tool.

4. Apply engine oil to the front bearing outer surface

and bearing hole in the cylinder.

AK300621AD

Ratchet ball

Rear bearing right

Oil hole

AK300179

MD998705
(Stopper)

MD998705(Guide pin)

AD

AK300622AD

MD998705
(Stopper)

AK300623AD

Rear bearing
installing portion

MD998705 (Stopper)

AK300178

MD998705(Guide pin)

AD

AK304592AB

Ratchet ball

Front bearing right

Oil hole

OIL PAN AND OIL PUMP

ENGINE OVERHAUL

11B-49

5. Using special tool, install the rear bearing. Make

sure that the oil hole of the bearing is aligned with
the oil hole of the cylinder block.

>>D<< COUNTERBALANCE SHAFT OIL
SEAL INSTALLATION

Using a suitable socket wrench, install the
counterbalance shaft oil seal into the front case.

>>E<< OIL PUMP OIL SEAL
INSTALLATION

Using a suitable socket wrench, install the oil pump
oil seal into the front case.

>>F<< CRANKSHAFT FRONT OIL SEAL
INSTALLATION

Using special tool Crankshaft front oil seal installer
(MD998375), install the crankshaft front oil seal into
the front case.

>>G<< OIL PUMP DRIVEN GEAR/OIL
PUMP DRIVE GEAR INSTALLATION

Install the oil pump gears into the front case and
align the alignment marks.

AK300179

MD998705
(Stopper)

MD998705(Guide pin)

AD

AK300624

AK304593AB

Oil seal

Socket wrench

Front case

AK304594AB

Oil seal

Socket wrench

Front case

AK304595AB

MD998375

Oil seal

Front case

AK300180

Alignment
mark

AD

OIL PAN AND OIL PUMP

ENGINE OVERHAUL

11B-50

>>H<< OIL PUMP CASE INSTALLATION

1. Set special tool Crankshaft front oil seal guide

(MD998258) on the front end of crankshaft and
apply a thin coat of engine oil to the outer surface
of special tool.

2. Apply engine oil to the lip of the crankshaft front

oil seal.

3. Install the front case carefully not to damage the

oil seal.

CAUTION

Carefully install the tightening bolts because of
the different length respectively.
4. Tighten all flange bolts to the specified torque.

Tightening torque: 23

± 3 N⋅m

>>I<< FLANGE BOLT INSTALLATION

1. Insert a Phillips head screwdriver (shank diameter

8 mm) into the hole in the left side of the cylinder
block to lock the counterbalance shaft.

2. Secure the oil pump driven gear onto the left

counterbalance shaft by tightening the flange bolt
to the specified torque.

Tightening torque: 36

± 3 N⋅m

3. Pull out the screwdriver and screw in the plug.

>>J<< PLUG INSTALLATION

1. Install a new O-ring to the groove of the front

case.

2. Install the plug to the front case.
3. Use the special tool to tighten the plug to the

specified torque.

• Plug wrench (MD998162)

• Plug wrench retainer (MD998783)

Tightening torque: 23

± 3 N⋅m

AK300181AD

MD998285

AK300182

MD998285

AD

AK301520AD

25 mm

40 mm

20 mm

22 mm

32 mm

AK300172

AK300183

AK300184

MD998162

MD998783

AD