Mitsubishi Galant 9G. Manual - part 594

OIL PAN AND OIL PUMP

TSB Revision

ENGINE OVERHAUL <2.4L ENGINE>

11B-48

3. Install the front case carefully to prevent damaging the oil 

seal.

CAUTION

Carefully install the tightening bolts paying attention to 
their different lengths, respectively.
4. Tighten all flange bolts to the specified torque.

Tightening torque: 23 

± 3 N⋅m (17 ± 2 ft-lb)

.

>>I<< FLANGE BOLT INSTALLATION

1. Insert a Phillips head screwdriver [shank diameter 8 mm 

(0.3 inch)] 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 (27 ± 1 ft-lb)

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

.

AK300182

MD998285

AC

AK301520AC

25 mm
(0.98 in)

40 mm
(1.57 in)

20 mm
(0.78 in)

22 mm
(0.86 in)

32 mm
(1.25 in)

AK300172

AK300183

OIL PAN AND OIL PUMP

TSB Revision

ENGINE OVERHAUL <2.4L ENGINE>

11B-49

>>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. Fit special tool MD998162 on the plug, and then hold it in 

position with special tool MD998783.

4. Tighten the plug to the specified torque.

Tightening torque: 23 

± 3 N⋅m (17 ± 2 ft-lb)

5. Remove special tools MD998783 and MD998162.

.

>>K<< OIL PAN INSTALLATION

1. Clean both gasket surfaces of oil pan and cylinder block.
2. Apply a 4 mm (0.15 inch) diameter bead of sealant 

(MITSUBISHI Genuine Part number MD970389 or 
equivalent) to the flange of the oil pan.

3. Install the oil pump case assembly to the front side of the 

cylinder block.
NOTE: Be sure to install the oil pan quickly while the sealant 
is wet (within 15 minutes).

4. Fit an 8 mm (0.30 inch) bolt in each of the two holes 

identified by the letter "S" in the illustration and a 10 mm 
(0.39 inch) bolt in each of the remaining 17 holes. Tighten all 
bolts to the specified torque.

Tightening torque: 9.0 

± 3.0 N⋅m (80 ± 26 in-lb)

NOTE: After installation, keep the sealed area away from oil 
for approximately one hour.

.

AK300184

MD998162

MD998783

AC

AK301811

TIMING BELT SIDE

BOLT HOLE

GROOVE

AB

AK300185

S

AC

OIL PAN AND OIL PUMP

TSB Revision

ENGINE OVERHAUL <2.4L ENGINE>

11B-50

>>L<< DRAIN PLUG GASKET INSTALLATION

CAUTION

If the gasket is installed in the wrong direction, oil leaks 
will occur.
Install the drain plug gasket in the direction shown.

.

>>M<< OIL FILTER INSTALLATION

1. Clean the installation surface of the filter bracket.
2. Apply engine oil to the o-ring of the oil filter.

3. Using general service tool, install the oil filter to the bracket 

and tighten it to the specified torque.

Tightening torque:

Part number MD356000 filter:
14 

± 2 N⋅m (124 ± 17 in-lb)

Other Mitsubishi Genuine filter:
17 

± 3 N⋅m (13 ± 1 ft-lb)

4. If a torque wrench cannot be used, use the following 

procedure:

(1) Screw in the oil filter until its o-ring contacts the oil filter 

bracket.

(2) Tighten the oil filter as follows:

Part number MD356000 filter: one turn
Other Mitsubishi Genuine filter: 3/4 turn

AK300601AD

DRAIN PLUG

OIL PAN

GASKET

OIL PAN 
SIDE

AK301069AC

AK300186

GENERAL SERVICE TOOL

AC

OIL PAN AND OIL PUMP

TSB Revision

ENGINE OVERHAUL <2.4L ENGINE>

11B-51

INSPECTION

M1113008200278

.

FRONT CASE

1. Check the oil passage for clogging. Clean if necessary.
2. Check the left counterbalance shaft front bearing for wear, 

damage and seizure. If the bearing is damaged, replace the 
front case.

3. Check the front case for cracks and other damage.

Replace cracked or damaged front case.

.

OIL SEAL

1. Check the oil seal lip for wear and damage. Replace the oil 

seal if necessary.

2. Check the oil seal lip for deterioration. Replace the oil seal if 

necessary.

.

COUNTERBALANCE SHAFT

1. Check the oil holes for clogging and clean if necessary.
2. Check the journal for seizure, damage and contact with 

bearing. If there is anything wrong with the journal, replace 
the counterbalance shaft, bearing or front case assembly if 
required.

.

OIL PUMP

1. Assemble the oil pump gears to the front case and rotate it 

to ensure smooth rotation with no looseness.

2. Ensure that there is no ridge wear on the contact surface 

between the front case and the gear surface of the oil pump 
cover.

3. Check the side clearance.

Standard value:

Drive gear 0.08 

− 0.14 mm (0.0031 − 0.0055 inch)

Driven gear 0.06 

− 0.12 mm (0.0024 − 0.0047 inch)

AK300187

AK300188