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Mitsubishi Pajero Pinin. Manual - part 23

ENGINE <4G9-MPI> –

Service Specifications/Sealants

11B-3

Items

Limit

Standard value

Power steering oil pump drive belt
tension <Vehicles without A/C>,

Vibration frequency Hz

114 – 139

–

tension <Vehicles without A/C>,
power steering oil pump and A/C
compressor drive belt tension

V hi l

i h

A/C

(Wh

Tension N

392 – 588

–

<Vehicles with A/C> (When
checked)

Deflection (Reference) mm

10.0 – 12.0

–

Power steering oil pump drive belt
tension <Vehicles without A/C>,

Vibration frequency Hz

121 – 133

–

tension <Vehicles without A/C>,
power steering oil pump and A/C
compressor drive belt tension

V hi l

i h A/C

(Wh

Tension N

441 – 539

–

<Vehicles with A/C> (When ad-
justed)

Deflection (Reference) mm

10.0 – 11.0

–

Power steering oil pump drive belt
tension <Vehicles without A/C>,

Vibration frequency Hz

145 – 166

–

tension <Vehicles without A/C>,
power steering oil pump and A/C
compressor drive belt tension

V hi l

i h A/C

(Wh

Tension N

637 – 833

–

<Vehicles with A/C> (When re-
placed)

Deflection (Reference) mm

7.0 – 9.0

–

Basic ignition timing

BTDC

–

Ignition timing

approx. 5

BTDC

–

Idle speed r/min

700

100

–

CO contents %

0.1 or less

–

HC contents ppm

100 or less

–

Compression pressure (250 r/min) kPa

1370

Min. 1039

Compression pressure difference of all cylinder kPa

–

Max. 100

Intake manifold vacuum kPa

–

Min. 60

Cylinder head bolt shank length mm

–

96.4

SEALANTS

Items

Specified Sealants

Remarks

Camshaft position sensor support

MITSUBISHI GENUINE PART MD970389 or
equivalent

Semi-drying
sealant

Oil pan

equivalent

sealant

Flywheel bolt <M/T>

3M Stud Locking 4170 or equivalent

–

Drive plate bolt <A/T>

ENGINE <4G9-MPI> –

Special Tools

11B-4

SPECIAL TOOLS

Tool

Number

Name

Use

MB991502

MUT-

sub

assembly

Engine idle speed check

Basic ignition timing check

Drive belt tension measurement

MB991668

Belt tension meter
set

Drive belt tension measurement
(used together with MUT-

)

MB990767

Front hub and
flange yoke holder

Holding the crankshaft sprocket

Holding the camshaft sprocket

MD998719

MD998443

Auto lash adjuster
holder

Holding the lash adjuster

MD998713

Camshaft oil seal
installer

Press-in of the camshaft oil seal

MD998727

Oil pan cutter

Removal of oil pan

MD998781

Flywheel stopper

Securing the flywheel <M/T> or drive plate
<A/T>

ENGINE <4G9-MPI> –

Special Tools/On-vehicle Service

11B-5

Tool

Use

Name

Number

MB990938

Installer bar

Press-in of the crankshaft rear oil seal

MD998776

Crankshaft rear oil
seal installer

MD998717

Crankshaft front oil
seal installer

Press-in of the crankshaft front oil seal

MB991653

Cylinder head bolt
wrench

Cylinder head bolt removal and installation

ON-VEHICLE SERVICE

DRIVE BELT TENSION CHECK AND
ADJUSTMENT

ALTERNATOR DRIVE BELT TENSION CHECK

Check the drive belt tension by the following procedure.

Standard value:

Vibration frequency Hz

143 – 185

Tension N

294 – 490

Deflection (Reference) mm

9.7 – 12.9

ENGINE <4G9-MPI> –

On-vehicle Service

11B-6

<When using the MUT-

Connect the special tool (MB991668) to the MUT-

Connect the MUT-

to the diagnosis connector.

Turn the ignition switch to ON and select “Belt Tension
Measurement” from the menu screen.

Hold the microphone to the middle of the drive belt between
the pulleys (at the place indicated by the arrow), about
10 – 20 mm away from the rear surface of the belt and
so that it is perpendicular to the belt (within an angle of

Gently tap the middle of the belt between the pulleys (the
place indicated by the arrow) with your finger as shown
in the illustration, and check that the vibration frequency
of the belt is within the standard value.

Caution
(1) The temperature of the surface of the belt should

be as close as possible to normal temperature.

(2) Do not let any contaminants such as water or oil

get onto the microphone.

(3) If strong gusts of wind blow against the

microphone or if there are any loud sources of
noise nearby, the values measured by the
microphone may not correspond to actual values.

(4) If the microphone is touching the belt while the

measurement is being made, the values measured
by the microphone may not correspond to actual
values.

(5) Do not take the measurement while the vehicle’s

engine is running.

<When using a tension gauge>

Use a belt tension gauge to check that the belt tension is
within the standard value.

<Belt deflection check>

Apply approx. 100 N of force to the middle of the drive belt
between the pulleys (at the place indicated by the arrow) and
check that the amount of deflection is within the standard
value.

MB991668
(Micro-
phone)

10 – 20 mm

Tap lightly
with a finger.

Alternator
pulley

Crank-
shaft
pulley

Belt
tension
gauge

Alternator
pulley

Crank-
shaft
pulley

Deflection

Approx.
100 N

Alternator
pulley

Crankshaft
pulley

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