Mitsubishi Outlander XL. Manual - part 1235

CRANKSHAFT

ZK602593

Balance weight

Oil hole

Balance weight

Balance weight

Oil hole

AA00

Crankshaft pin
identification mark

Crankshaft journal
identification mark

Forging steel is adopted.
This crankshaft has 4-main bearings and 5-balancing
weights.
Crankshaft pins are located in every 60 degrees.
Lubrication oil is lead from main journal to pin.

Timing  belt  sprocket  and  crankshaft  pulley  are
assembled at front end.

Items

Specifications

Pin outer diameter mm (in.)

53(2.09)

Journal outer diameter mm (in.)

69(2.72)

CRANKSHAFT BEARING AND THRUST BEARING

ZK602594

Oil hole

Oil groove

Identification color

Identification color

Lower bearing

Upper bearing

Groove

Thrust bearing

Engine front

Crankshaft bore
identification mark

Cylinder bore
identification mark

Main bearing consists of aluminum alloy (surface) and
steel plate (backside).
Thrust  bearing,  which  controls  axial  movement  of
crankshaft, is assembled at No.3 journal.

Items

Specifications

Crankshaft bearing

Width

18.5(0.73)

Items

Specifications

mm (in.)
Thickness
mm (in.)

2.0(0.08)

Crankshaft

 thrust

bearing

Thickness
mm (in.)

2.0(0.08)

ENGINE

11-9

BASE ENGINE

CRANKSHAFT PULLEY

ZK602595AA00

Timing mark

Damper

The outer ring has 6-rib for power steering pump and 4-rib for
alternator and air-compressor drive belt.
Timing mark notch is applied at the flange of 4-rib side.

 

DRIVE PLATE

ZK602596 AA00

The drive plate is made of sheet metal.
The drive plate is mounted with 8 bolts.

 

11-10

ENGINE

BASE ENGINE

TIMING BELT

ZK602597 AA00

Timing mark

Camshaft sprocket

Camshaft sprocket

Water pump
idler pulley

Crankhaft sprocket

Idler pulley

Auto tensioner

Tensioner pulley

Timing mark

Timing mark

Timing mark

By using the highly strengthen timing belt, the belt is
narrow and long-lasting. This allows the friction to be
decreased, and the engine weight to be lightweight.

By  abolishing  a  traditional  eccentric  pulley,  the
tensioner is designed to be lightweight.
By applying the projection of the timing belt cover, the
timing belt is prevented from coming off the tooth.

VALVE

ZK602600

Intake

Exhaust

L

L

D

d

d

D

ENGINE

11-11

BASE ENGINE

The  valve  is  made  of  heat  resistant  steel  and  has
nitride processing on its entire surface.

Items

Intake valve Exhaust

valve

Head  diameter  (D)
mm (in.)

35.0(1.38)

29.5(1.16)

Items

Intake valve Exhaust

valve

Stem diameter (d) mm
(in.)

6.0(0.24)

6.0(0.24)

Overall length (L)
mm (in.)

111.84(4.40) 114.04(4.49)

VALVE STEM SEAL

Oil  is  prevented  from  seeping  down  by  using  a  good  sealing
spring on the valve stem seal.

VALVE SPRINGS

ZK602590

h

AA00

To prevent surging during high speed, variable pitch springs are
used.

Items

Intake
valve

Exhaust
valve

Free height (h) mm (in.) 59.15(2.33) 57.7(2.27)
Total number of windings 10.61

9.39

 

CAMSHAFT

ZK602602AA00

AB C A

B

AB C A

B

AB C A

B

AB C A

B

AB C A

B

AB C A

B

The camshaft has the two kinds of the cams, for high speed and
low speed, at the intake side.

Items

Cam height mm (in)

A: Intake low speed cam 37.28(1.468)
B: Intake low speed cam 36.23(1.426)
C: Exhaust cam

37.84(1.490)

 

11-12

ENGINE

BASE ENGINE