Mitsubishi Outlander XL. Manual - part 1233

GROUP 11

ENGINE

CONTENTS

GENERAL DESCRIPTION.............

11-2

BASE ENGINE.....................

11-3

11-1

GENERAL DESCRIPTION

M21102000001USA0000010000

This  vehicle  is  equipped  with  the  newly  developed
6B31 engine, a 3.0L V6 Single Over Head Camshaft
(SOHC) 24-valve engine.

The features of this engine are as follows:

｠

The 3.0L engine employs the Mitsubishi Innovative
Valve  timing  and  lift  Electronic  Control  system
(MIVEC).

｠

An  aluminum  alloy  cylinder  block  is  used  to  be
lightweight and compact.

｠

The  cylinders  are  offset  from  the  center  of  the
crankshaft.

MAJOR SPECIFICATIONS

ITEMS

SPECIFICATIONS

Total displacement cm3(cu in)

2,998 (182.9)

Bore × Stroke mm (in)

87.6 (3.45) × 82.9 (3.26)

Compression ratio

9.5

Combustion chamber

Pentroof type

Camshaft arrangement

SOHC

Valve timing

Intake Open

-1° BTDC Low speed cam
18° BTDC High speed cam

Intake Close

37° ABDC Low speed cam
86° ABDC High speed cam

Exhaust Open

55° BBDC

Exhaust Close

17° ATDC

Maximum output kW/r/min (HP/r/min)

164/6,250(220/6,250)

Maximum torque N·m/r/min (lbs-ft/r/min)

276/4,000(204/4,000)

Lash adjuster

Exhaust side only

Fuel system

Electronic-controlled multiport fuel injection

Ignition system

Electronic-controlled 6-coil

11-2

ENGINE

GENERAL DESCRIPTION

BASE ENGINE

M21102000010USA0000010000

CYLINDER HEAD

ZK602589

Intake side

Exhaust side

Plug guide

Valve guide

Valve seat

AA00

A cylinder head made of an aluminum alloy, which is
lightweight and offers a high level of cooling efficiency,
has been adopted. A pent roof combustion chamber
with a center spark plug has been adopted. It has a
small  valve  compound  angle  to  create  a  compact
chamber.

Cross-flow type intake and exhaust ports have been
adopted. Two intake ports and two exhaust ports are
provided independently on the right and left sides.
Four camshaft bearings are provided at the intake and
exhaust  sides,  respectively.  The  No.  4  bearing
sustains the thrust load of the camshaft.

VALVE SEAT

The valve stem seals use springs with good seal performance
to prevent oil draining down.
The oversize valve guides are available as spare parts: 0.3.

VALVE GUIDE

A sintered alloy material is used for the valve guides.
The three kinds of the oversize valve guides are available as
spare parts: 0.05, 0.25 and 0.50.

ENGINE

11-3

BASE ENGINE

CYLINDER HEAD GASKET

ZK602583AA00

Oil hole

Water hole

Oil hole

Water hole

Water hole

A 2-layer metal gasket with good sealability and heat
resistance is used for the cylinder head gasket.

ROCKER COVER

ZK602584AA00

Timing belt side

Blow by nipple

P.C.V. valve

Blow by nipple

A lightweight resin material is used for the cylinder gasket cover.

11-4

ENGINE

BASE ENGINE