Mitsubishi Outlander (2003+). Manual — part 10

CAMSHAFT AND VALVE STEM SEAL

ENGINE MECHANICAL

11A-17

LUBRICATION AND SEALING POINTS

<The bottom view of the rocker cover>

Sealant: MITSUBISHI GENUINE PART MD970389 or equivalent

Engine oil

(Lip section)

10 mm

10 mm

10 mm

<View A>

Sealant: 3M ATD Part No.8660
or equivalent

10 mm

10 mm

Rocker
cover

Cylinder
head

φ

3 mm

AC300541

A

A

A

Sealant:
MITSUBISHI GENUINE
PART MD970389 or
equivalent

Sealant: MITSUBISHI GENUINE
PART MD970389 or equivalent

Sealant: MITSUBISHI GENUINE PART MD970389 or equivalent

<Top view of cylinder head>

CAMSHAFT AND VALVE STEM SEAL

ENGINE MECHANICAL

11A-18

REMOVAL SERVICE POINTS

<<A>> RADIATOR UPPER HOSE
DISCONNECTION

Make mating marks on the radiator hose and the
hose clamp. Disconnect the radiator hose.

<<B>> CAMSHAFT SPROCKETS REMOVAL

1. Hold the hexagon part of the camshaft with a

wrench.

2. Loosen the camshaft sprocket mounting bolts and

remove the camshaft sprocket.

<<C>> VALVE SPRING RETAINER LOCKS
REMOVAL

CAUTION

When removing valve spring retainer locks, leave
the piston of each cylinder in the TDC (Top Dead
Centre) position. The valve may fall into the
cylinder if the piston is not properly in the TDC
position.

Use special tool valve spring compressor
(MD998772) to compress the valve spring, remove
the valve spring retainer locks.

INSTALLATION SERVICE POINTS

>>A<< EXHAUST VALVE STEM SEALS/INLET
VALVE STEM SEALS INSTALLATION

1. Check the valve stem seal colour to identify the

inlet side or exhaust side.

2. Apply a small amount of engine oil to the valve

stem seals.

AC200641AC

Mating marks

AC201457AB

AC201799

MD998772

AB

AC201542AB

Exhaust side

Inlet side

Gray

Gray green

CAMSHAFT AND VALVE STEM SEAL

ENGINE MECHANICAL

11A-19

CAUTION

œ

Valve stem seals cannot be reused.

œ

The special tool valve stem seal installer
(MD998737) must be used to install the valve
stem seal. Improper installation could result
in oil leaking past the valve guide.

3. Use special tool to fill a new valve stem seal in the

valve guide using the valve stem area as a guide.

>>B<< VALVE SPRINGS INSTALLATION

Install the valve springs with its identification colour
painted end facing the locker arm.

>>C<< VALVE SPRING RETAINER LOCKS
INSTALLATION

Use special tool valve spring compressor
(MD998772) to compress the valve spring in the
same manner as removal.

>>D<< ROCKER ARM LASH ADJUSTERS
INSTALLATION

CAUTION

If the rocker arm lash adjuster is reused, always
clean and check it before installation. (Refer to
GROUP 11B, Rocker Arms and Camshaft

-

Inspection).

>>E<< EXHAUST CAMSHAFT/INLET CAMSHAFT
INSTALLATION
1. Remove sealant remained on the cylinder head.
2. Apply engine oil to the cam and the journal of the

camshaft.

CAUTION

Do not install wrong camshaft at the side of inlet
or exhaust. The exhaust camshaft has a slit at the
rear surface.

3. Install the camshaft to the cylinder head.

>>F<< CAMSHAFT BEARING CAPS, NO. 4/
CAMSHAFT BEARING CAPS, NO. 3/CAMSHAFT
BEARING CAPS, NO. 5/CAMSHAFT BEARING
CAPS, NO. 2/CAMSHAFT BEARING CAPS, REAR/
CAMSHAFT BEARING CAPS, FRONT
INSTALLATION

1. Set the dowel pin of the camshaft to the position

as shown in the illustration.

AC107414 AC

MD998737

Valve

Valve stem
seal

Valve guide

AC201453 AB

Rocker arm side

Identification
colour

AC201799

MD998772

AB

AC201458AB

Engine front

Slit

Exhaust camshaft

AC201459AB

Dowel pin

Exhaust side

Inlet side

Approximately 3˚

CAMSHAFT AND VALVE STEM SEAL

ENGINE MECHANICAL

11A-20

2. Since the shape of camshaft bearing caps No.2

-

5 is identical, check the identification marks so
that the bearing cap No., inlet side, or exhaust
side cannot be mistaken to install to the direction
as shown in the illustration.

Identification mark (engraved on the front
and bearing caps No.2

-

5)

I: Inlet side
E: Exhaust side

3. Apply sealant to the positions (6 areas) of the

upper side of the cylinder head as shown in the
illustration.

Specified sealant: MITSUBISHI GENUINE
PART MD970389 or equivalent

NOTE: Install the camshaft bearing caps, rear
and camshaft bearing caps, front within 15
minutes after applying liquid gasket.

4. Position the camshaft bearing caps, rear in the

direction as shown in the illustration for
installation.

5. Check the identification marks on the camshaft

bearing caps, front so that inlet side and exhaust
side cannot be mistaken in the same way as that
of bearing caps No.2

-

5.

CAUTION

Then wait at least one hour. Never start the
engine or let engine oil or coolant touch the
adhesion surface during that time.

6. Tighten the bearing cap mounting bolts increasing

the pressure in 2 to 3 times and finally tighten to
the specified torque.

Tightening torque: 20

–

1 N

¼

m

7. Ensure that the rocker arms are installed properly.

NOTE: Remove an excess of sealant completely.

>>G<< CAMSHAFT OIL SEALS INSTALLATION

1. Apply engine oil to the entire inner diameter of the

oil seal lip.

2. Use special tool camshaft oil seal installer

(MD998713) to press-fit the oil seals.

>>H<< CAMSHAFT SPROCKETS INSTALLATION

1. Hold the hexagon part of the camshaft with a

wrench in the same manner as removal.

2. Tighten the camshaft sprocket mounting bolts to

the specified torque.

Tightening torque: 89

–

9 N

¼

m

AC201460

E 4

AB

Bearing
cap No.

Identification of
inlet side and
exhaust side

Engine front

AC201461AB

Engine front

AC201462 AB

Front
marking

Engine front

AC102323 AB

MD998713

AC201457AB