Mitsubishi Outlander (2003+). Manual — part 21

ON-VEHICLE SERVICE

ENGINE MECHANICAL <4G69>

11C-11

VALVE CLEARANCE CHECK AND
ADJUSTMENT

M1111001500131

1. Start the engine and allow it to warm up until the

engine coolant temperature reaches 80

−

95

°

C.

2. Turn the ignition switch to the "LOCK" (OFF)

position.

3. Remove all ignition coils.
4. Remove all spark plugs from the cylinder head for

easy inspection.

5. Remove the rocker cover.
6. Turn the crankshaft clockwise until the notch on

the pulley is lined up with the "T" mark on the
timing indicator.

7. Move the rocker arms on the No.1 and No.4

cylinders up and down by hand to determine
which cylinder has its piston at the top dead
center on the compression stroke. If both intake
and exhaust valve rocker arms have a valve lash,
the piston in the cylinder corresponding to these
rocker arms is at the top dead center on the
compression stroke.

8. Valve clearance inspection and adjustment can be

performed on rocker arms indicated by white
arrow mark when the No.1 cylinder piston is at the
top dead centre on the compression stroke, and
on rocker arms indicated by black arrow mark
when the No.4 cylinder piston is at the top dead
centre on the compression stroke.

9. Measure the valve clearance.

If the valve clearance is not as specified, loosen
the rocker arm lock nut and adjust the clearance
using a thickness gauge while turning the
adjusting screw.

Standard value (hot engine):

Intake valve: 0.20 mm
Exhaust valve: 0.30 mm

10.While holding the adjusting screw with a

screwdriver to prevent it from turning, tighten the
lock nut to the specified torque.

Tightening torque: 9

±

1 N

⋅

m

11.Turn the crankshaft through 360

°

to line up the

notch on the crankshaft pulley with the "T" mark
on the timing indicator.

12.Repeat steps (9) and (10) on other valves for

clearance adjustment.

13.Install the rocker cover.
14.Install the spark plugs and tighten to the specified

torque.

Tightening torque: 25

±

4 N

⋅

m

15.Install the ignition coils.

ROCKER ARM PISTON OPERATION
CHECK

M1111051000023

1. Remove all of the ignition coils.
2. Remove the rocker cover.
3. Remove the oil control valve.
4. Remove the taper plug.
5. Turn the crankshaft clockwise until the notch on

the crankshaft pulley is lined up with "T" mark on
the lower cover of timing belt.

6. Move the rocker arms on the No.1 and No.4

cylinders up and down by hand to determine
which cylinder has its piston at the top dead
centre on the compression stroke.

AK303689 AB

Exhaust valve side

No. 1

No. 2

No. 3

No. 4

Intake valve side

AK304505AB

Taper plug

Oil control valve

Ignition coils

Rocker cover

ON-VEHICLE SERVICE

ENGINE MECHANICAL <4G69>

11C-12

NOTE:

The rocker arm piston operation check can be
performed on rocker arms indicated by white arrow
mark when the No.1 cylinder piston is at the top dead
centre on the compression stroke, and on rocker
arms indicated by black arrow mark when the No.4
cylinder piston is at the top dead centre on the
compression stroke.

7. While shutting up the oil passage hole at the

depth of the oil control valve's installation hole by
finger not to leak air, blow compression air into the
taper plug's installation hole by air blowgun. At
this time, confirm that the rocker arm piston can
operate.

NOTE: To fully confirm the check, prevent the
compression air from leaking as much as possible by
installing the O-ring to the end of air blowgun.
8. Turn the crankshaft clockwise until the notch on

the crankshaft pulley is lined up with "T" mark on
the lower cover of timing belt.

9. Confirm the rest of the rocker arm pistons under

the procedure 7.

10.When the rocker arm piston does not operate,

replace the rocker arm assy.

11.Apply sealant to threaded portion.

Specified sealant: LOCTITE203MP

CAUTION

Do not start the engine within one hour after the
engine taper plug has been installed.
12.Install the taper plug and tighten to the specified

torque.

Tightening torque: 10

±

2 N

⋅

m

13.Install the oil control valve. (Refer to Camshaft

and Valve Stem Seal

−

Removal and Installation

P.11C-18

.)

14.Install all of the ignition coils.
15.Install the rocker cover.

AK303689 AC

Exhaust valve side

No. 1

No. 2

No. 3

No. 4

Intake valve side

AK302684AC

Rocker arm
piston

Blow
compression
air

Oil passage

Rocker arm

ON-VEHICLE SERVICE

ENGINE MECHANICAL <4G69>

11C-13

IGNITION TIMING CHECK

M1111001700607

1. Before inspection, set the vehicle to the

pre-inspection condition.

2. Turn the ignition switch to the "LOCK" (OFF)

position and then connect the MUT-II/III to the
diagnosis connector.

3. Connect a timing light.
4. Start the engine and let it run at idle.
5. Use the MUT-II/III to measure engine idle speed

and check that it is within the standard value.

Standard value

: 680

±

100 r/min <M/T>

: 750

±

100 r/min <A/T>

6. Select No. 17 of the MUT-II/III Actuator test.
7. Check that basic ignition timing is within the

standard value.

Standard value: 5

°

BTDC

±

3

°

8. If the basic ignition timing is outside the standard

value, inspect the MPI system (Refer to

P.13B-20

,

GROUP 13B

−

Troubleshooting

−

Inspection chart

for diagnosis code).

CAUTION

If the test is not cancelled, a forced driving will
continue for 27 minutes. Driving under this
condition may damage the engine.
9. Press the MUT-II/III clear key (Select a forced

driving cancel mode) to release the Actuator test.

10.Check that ignition timing is at the standard value.

Standard value: approximately 10

°

BTDC

NOTE:

.

•

The ignition timing may fluctuate within

±

7

°

BTDC. This is normal.

•

In higher altitude, the ignition timing is more
advanced than the standard value by
approximately 5

°

.

11.Remove the timing light.
12.Turn the ignition switch to the "LOCK" (OFF)

position and then remove the MUT-II/III.

AK303691AF

MB991502

16 PIN

AK303690AB

MB991911

16-PIN

MB991827

MB991824

ON-VEHICLE SERVICE

ENGINE MECHANICAL <4G69>

11C-14

IDLE SPEED CHECK

M1111003500654

1. Before inspection, set the vehicle to the

pre-inspection condition.

2. Turn the ignition switch to the "LOCK" (OFF)

position and then connect the MUT-II/III to the
diagnosis connector.

3. Connect a timing light.
4. Start the engine and let it run at idle.
5. Check that ignition timing is at the standard value.

Standard value: approximately 10

°

BTDC

6. Check the idle speed.

Standard value

: 680

±

100 r/min <M/T>

: 750

±

100 r/min <A/T>

NOTE:

.

•

The idle speed is controlled automatically by
the idle speed control system.

•

When using the MUT-II/III, select item No. 22
and take a reading of the idle speed.

7. If the idle speed is outside the standard value,

inspect the MPI system (Refer to

P.13B-20

,

GROUP 13B

−

Troubleshooting

−

Inspection chart

for diagnosis code).

8. Turn the ignition switch to the "LOCK" (OFF)

position and then remove the MUT-II/III.

IDLE MIXTURE CHECK

M1111002100426

1. Before inspection, set the vehicle to the

pre-inspection condition.

2. Turn the ignition switch to the "LOCK" (OFF)

position and then connect the MUT-II/III to the
diagnosis connector.

3. Connect a timing light.
4. Start the engine and let it run at idle.
5. Check that ignition timing is at the standard value.

Standard value: approximately 10

°

BTDC

6. Run the engine at 2,500 r/min for 2 minutes.
7. Set the CO, HC tester.

AK303691AF

MB991502

16 PIN

AK303690AB

MB991911

16-PIN

MB991827

MB991824

AK303691AF

MB991502

16 PIN

AK303690AB

MB991911

16-PIN

MB991827

MB991824