Mitsubishi Outlander (2013+). Manual — part 259

BALANCER SHAFT AND OIL PUMP MODULE <4B12>

ENGINE MECHANICAL

11A-59

BALANCER SHAFT AND OIL PUMP MODULE <4B12>

REMOVAL AND INSTALLATION

M1112008900274

Pre-removal and Post-installation Operation
• Engine Oil Pan Removal and Installation (Refer to

P.11A-36

).

AC509274 AF

1

10 ± 2 N·m

(Engine oil)

20 N·m

44 N·m

0 N·m

20 N·m

+135˚

Removal step

<<

A

>>

>>

A

<<

1.

Balancer shaft and oil pump
module

REMOVAL SERVICE POINT

<<A>> BALANCER SHAFT AND OIL
PUMP MODULE REMOVAL

CAUTION

• Turn the crankshaft clockwise.
•

AC509275AB

Balancer shaft
sprocket
timing mark

Paint
markings

Balancer
shaft and
oil pump
module
timing mark

Never turn the crankshaft after the cylinder
No. 1 or No. 4 is set to the top dead centre of
compression.

BALANCER SHAFT AND OIL PUMP MODULE <4B12>

ENGINE MECHANICAL

11A-60

1. Turn the crankshaft clockwise to align the timing

mark of the balancer shaft sprocket with the timing
mark of the balancer shaft and oil pump module,
and set the cylinder No. 1 or No. 4 to the top dead
centre of compression.

2. Put paint marks on the balancer shaft sprocket

timing mark and balancer timing chain.

CAUTION

Securely install the plunger of the timing chain
tensioner. Otherwise, it may pop out.

AC509276AB

L-shaped hard wire or
L-shaped hexagon wrench

Timing chain tensioner

AC509277AB

L-shaped hard wire or
L-shaped hexagon wrench

Timing chain
tensioner

Balancer
timing chain

<Timing chain case
internal diagram>

3. Press the balancer timing chain against the timing

chain tensioner, compress the plunger of the
timing chain tensioner and insert L-shaped hard
wire (piano wire of

φ1.5 mm) or L-shaped

hexagon wrench (1.5 mm) to the plunger fixing
hole of the timing chain tensioner from under the
timing chain case, and fix the plunger of the timing
chain tensioner.

AC509278 AB

Balancer timing
chain guide

4. Use a wrench to remove the mounting bolt at the

lower side of the balancer timing chain guide
shown in the figure so that the balancer timing
chain guide is unrestricted.

5. Support the balancer shaft and oil pump module

with a hand, and remove the balancer shaft and
oil pump module mounting bolt.

AC509279AB

Balancer
timing
chain

Balancer shaft and
oil pump module

6. Remove the balancer shaft and oil pump module

from the rudder frame with the balancer timing
chain attached, and move it to the centre of the
engine.

7. Remove the balancer timing chain from the

balancer shaft and oil pump module, and remove
the balancer shaft and oil pump module.

CAUTION

When the tooth jump of the balancer timing chain
from the crankshaft sprocket occurs, the timing
between the balancer shaft and the oil pump
module becomes off, resulting in the abnormal
engine vibration. Be sure that the tooth jump will
not occur.

AC509280 AB

Protrusion

Cable band

Balancer
timing
chain

8. After the balancer shaft and oil pump module is

removed, using a cable band, tie the balancer
timing chain at the protrusion of the rudder frame
to prevent the tooth jump of balancer timing chain
from the crankshaft sprocket.

BALANCER SHAFT AND OIL PUMP MODULE <4B12>

ENGINE MECHANICAL

11A-61

INSTALLATION SERVICE POINT

>>A<< BALANCER SHAFT AND OIL
PUMP MODULE INSTALLATION

1. When installing the new balancer shaft and oil

pump module, apply oil to the oil pump in the
balancer shaft and oil pump module and the
balancer shaft bearing as follows.

AC509272

AB

Oil inlet
port

Engine
oil

Engine
oil pan

Balancer shaft and oil pump module

(1) Clean the inside of the removed engine oil

pan, and put the balancer shaft and oil pump
module into the engine oil pan with its oil inlet
port facing up.

(2) Pour new engine oil until two-thirds of the

balancer shaft and oil pump module is soaked.

(3) Fill the engine oil (approximately 50 mL) into

the balancer shaft and oil pump module from
the oil inlet port.

AC509273

AB

Balancer
shaft
sprocket

Balancer shaft and oil pump module

(4) Turn the balancer shaft sprocket of the

balancer shaft and oil pump module clockwise
four rotations or more to apply the engine oil to
the entire area of the oil pump and the
balancer shaft bearing.

2. Remove the cable band installed to prevent the

tooth jump of the balancer timing chain from the
crankshaft sprocket from the balancer timing
chain.

AC509279 AC

Balancer
timing
chain

Paint markings

Balancer shaft
sprocket

Paint marking
or timing mark

3. Regarding the prevention of the tooth jump of the

balancer timing chain, install the balancer shaft
sprocket to the balancer timing chain with aligning
the paint marking of the balancer shaft sprocket
(the timing mark of the new balancer shaft and oil
pump module) with that of the balancer timing
chain.

4. With the paint marking of the balancer timing

chain aligned with that of the balancer sprocket
(the timing mark of the new balancer shaft and oil
pump module), install the balancer shaft and oil
pump module to the rudder frame. Securely bring
the balancer shaft and oil pump module into
contact with the rudder frame mounting area.

5. Apply an adequate and minimum amount of

engine oil to the threads and bearing surfaces of
the balancer shaft and oil pump module bolts.

AC506784

AB

1

2

3

4

Balancer shaft and
oil pump module

6. Tighten the balancer shaft and oil pump module

bolts to the specified torque 20 N

⋅m in the order of

number shown in the figure.

7. Tighten the balancer shaft and oil pump module

bolts again to the specified torque 44 N

⋅m in the

order of number shown in the figure.

8. Loosen the balancer shaft and oil pump module

bolts fully in the reverse sequence to that shown.

9. Tighten the balancer shaft and oil pump module

bolts to the specified torque 20 N

⋅m in the order of

number shown in the figure.

AC506784

AB

1

2

3

4

Balancer shaft and
oil pump module

AC506777

AB

MB991614

Balancer shaft and
oil pump module

BALANCER SHAFT AND OIL PUMP MODULE <4B12>

ENGINE MECHANICAL

11A-62

10.After tightening to the specified torque, tighten the

balancer shaft and oil pump module bolts to 135
degrees, using special tool angle gauge
(MB991614), in the order of number shown in the
figure.

11.Tighten the mounting bolt of the balancer timing

chain lower with the standard torque.

Tightening torque: 10

± 2 N⋅m

12.Remove the plunger of the timing chain tensioner

using the L-shaped hard wire (

φ1.5 mm piano

wire, etc.) or L-shaped hexagon wrench (1.5 mm).