Mitsubishi Lancer Evolution IX. Manual — part 90

OIL PAN AND OIL PUMP

ENGINE OVERHAUL

11B-51

CAUTION

Remove the front bearing first. Otherwise, the
special tool cannot be used.
Use the special tool Silent shaft bearing puller
(MD998371) to remove the counterbalancer shaft
front bearing from the cylinder block.

<<F>> COUNTERBALANCER SHAFT
REAR BEARING REMOVAL

1. Use the special tool Silent shaft bearing puller

(MD998372) to remove the counterbalancer shaft
rear bearings from the cylinder block.

2. When removing the rear bearing of the left

counterbalancer shaft, install the special tool
Silent shaft bearing installer stopper (MB991603)
on the front of the cylinder block and use a special
tool Silent shaft bearing puller (MD998372) to pull
out the bearing.

INSTALLATION SERVICE POINTS
>>A<< COUNTERBALANCER SHAFT
REAR BEARING, LEFT INSTALLATION

1. Install the special tool Silent shaft bearing installer

stopper (MB991603) on the cylinder block.

2. Set the rear bearing on the special tool Silent

shaft bearing installer (MD998705).
NOTE: The left counterbalancer shaft rear bearing
has no oil hole.

3. Force the rear bearing into the cylinder block by

sticking the special tool.

>>B<< COUNTERBALANCER SHAFT
REAR BEARING, RIGHT INSTALLATION

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

bearing installer (MD998705) on the cylinder
block.

2. Set the bearing on the special tool with its oil hole

on the ratchet ball.

AK202634

MB991603

MD998372

AC

AK202548

MB991603

MD998705
(Stopper)

AC

AK300619AF

MB991603

MD998705
(Stopper)

Rear bearing

AK304433

MD998705
(Guide pin)

AB

AK300620AE

Ratchet ball

Front bearing right

Oil hole

OIL PAN AND OIL PUMP

ENGINE OVERHAUL

11B-52

3. Insert the special tool while passing the guide pin

through its hole and force the bearing into position
by striking the tool.

>>C<< COUNTERBALANCER SHAFT
FRONT BEARING INSTALLATION

1. Detach from the special tool Silent shaft bearing

installer (MD998705) its element for rear bearing
installation.

2. Install the guide pin of the special tool on the

cylinder block.

3. Set the bearing on the special tool with its oil hole

on the ratchet ball.

4. Insert the special tool Silent shaft bearing installer

(MD998705) into the cylinder block while passing
the guide pin through its hole and force the
bearing into position by striking the tool.

AK304434AC

MD998705
(Guide pin)

MD998705
(Stopper)

AK300622AF

MD998705
(Stopper)

AK300623AD

Rear bearing
installing portion

MD998705 (Stopper)

AK304433

MD998705
(Guide pin)

AB

AK300621AE

Ratchet ball

Rear bearing right

Oil hole

AK304434AC

MD998705
(Guide pin)

MD998705
(Stopper)

AK300624

OIL PAN AND OIL PUMP

ENGINE OVERHAUL

11B-53

>>D<< OIL PUMP OIL SEAL
INSTALLATION

Use an appropriate socket wrench to install the oil
pump oil seal.

>>E<< COUNTERBALANCER SHAFT OIL
SEAL INSTALLATION

Use an appropriate socket wrench to install the coun-
terbalancer shaft oil seal.

>>F<< CRANKSHAFT OIL SEAL
INSTALLATION

Use the special tool Crankshaft front oil seal installer
(MD998375) to install the crankshaft oil seal.

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

Apply engine oil generously to the gears and line up
the alignment marks.

>>H<< FRONT CASE INSTALLATION

1. Install the special tool crankshaft front oil seal

guide (MD998285) on the front end of crankshaft
and apply a thin coat of engine oil to the outer
surface of the special tool. Be sure to use the
special tool when the front case is fitted with an oil
seal.

2. Install the front case on the cylinder block with a

new front case gasket in between and temporarily
tighten all the flange bolts except those that are
used for tightening the filter bracket.

3. Install the oil filter bracket on the front case with

the oil filter bracket gasket in between and
temporarily tighten the washer-assembled bolts.

4. Tighten all the bolts to the specified torques.

AK301070AE

Oil seal

Socket wrench

Front case

AK301071AE

Oil seal

Socket wrench

Front case

AK301072AE

MD998375

Oil seal

Front case

AK202660

Alignment
marks

AB

AK202577

MD998285

Counterbalancer
shaft, right

AC

Counterbalancer
shaft, left

AK202656

MD998285

AC

OIL PAN AND OIL PUMP

ENGINE OVERHAUL

11B-54

>>I<< FLANGE BOLT INSTALLATION

1. Insert a correspond screwdriver (shank diameter

8 mm) into the hole in the left side of the cylinder
block to prevent the counterbalancer shaft from
rotating.

2. Tighten the flange bolts.

>>J<< PLUG INSTALLATION

1. Install a new O-ring on the front case.

2. Use the special tool to tighten the plug to the

specified torque.

• Plug wrench (MD998162)

• Plug wrench retainer (MD998783)

>>K<< OIL PRESSURE SWITCH
INSTALLATION

CAUTION

Be careful not to block the oil passage with seal-
ant.
1. Apply sealant to the threaded portion.

Specified Sealant:

3M ATD Part No.8660 or equivalent

2. Tighten the oil pressure switch together with the

cylinder block by the specified torque using of the
special tool Oil pressure switch socket wrench
(MD998012).

Tightening torque: 19

± 3 N⋅m

>>L<< OIL PAN INSTALLATION

CAUTION

Do not apply FIPG over remaining old FIPG.
Doing so could result in oil leakage.
1. Thoroughly remove old FIPG from the gasket

surfaces of the cylinder block and oil pan.

AK202641

Crosspoint
screwdriver

AC

AK304385

AK202585

MD998162

MD998783

AC

AK300616AB

AK300617AC

MD998012