Mitsubishi Outlander XL. Manual - part 1234

CYLINDER BLOCK

ZK602585AA00

Cylinder block

Bearing cap

Beam

Right plate

Left plate

An  aluminum  alloy  material  is  used  for  the  cylinder
block to be lightweight.
The  crankshaft  journal  has  4  bearings.  The  No.3
bearing carries the thrust load of the crankshaft.
A full Siamese type water jacket is used.

Items

Specifications

Bore mm (in.)

87.6(3.45)

Bore pitch mm (in.)

98(3.86)

Stroke mm (in.)

82.9(3.26)

ENGINE

11-5

BASE ENGINE

ZK603515AA00

Offset crankshaft
layout

Crank journal 
center

The cylinders are offset from the center of the crankshaft.

PISTON

ZK602586AA00

Piston off set 0.5 mm

Front mark

Special aluminum alloy is adopted to improve heat efficiency and
achieve lower weight.
That contributes to higher engine performance and better fuel
economy. Piston pinhole center is offset by 0.5 mm from piston
center towards the thrust side.
Out side surface of piston skirt has striation-like finishing better
oil holding ability (and superior durability against scuffing.)

Items

Specifications

Basic diameter mm (in.)

87.6(3.45)

Pin hole diameter mm (in.)

22(0.87)

Overall height mm (in.)

47.78(1.88)

 

PISTON PIN

ZK602587AA00

D

d1

h

d2

Semi-floating piston pin is adopted. Piston pin is into the small
end of connecting rod so that it floats in piston.

Items

Specifications

Outer diameter (D) mm (in.)

22(0.87)

Inner diameter (d1) mm (in.)

13.5(0.53)

Inner diameter (d2) mm (in.)

12.5(0.49)

Overall length (h) mm (in.)

58(2.28)

11-6

ENGINE

BASE ENGINE

PISTON RING

ZK602588

Piston ring No.1

Specer

Piston ring No.2

Piston ring No.1

Piston ring No.2

Oil ring

Side rail

Maker mark

Oil ring

AA00

Piston ring consists of ring No.1, No. 2, and oil ring.

Items

Piston ring No.1

Piston ring No.2

Oil ring

Shape

Barrel

Taper

3-piece, Barrel

Surface  treatment  (cylinder
contact surface)

Chrome nitride (PVD)

Parkerizing

 +

 resin

coating

Hard plated Parkerizing

Supplier mark

1T

2T

None

ENGINE

11-7

BASE ENGINE

CONNECTING ROD

ZK602591AA00

D

d

L

High strength carbon steel (forging) material is adopted.
Rod has "H" shaped cross section.
Big-end  is  lubricated  through  crankshaft  oil  passage  between
main journal and pin.

Items

Specifications

Small end hole diameter (d)
mm (in.)

22(0.87)

Big end hole diameter (D)
mm (in.)

56(2.20)

Center-to-center distance (L)
mm (in.)

145(5.71)

 

CONNECTING BEARING

ZK602592 AA00

H

A

Identification
color

Upper and lower bearings are same parts.
This  part  consists  of  overlay  (surface),  copper  alloy  plate
(middle) and steel plate (back side).
To  reduce  friction  loss,  width  of  connecting  rod  bearing  is
designed as short as possible composed with crankshaft journal.

Items

Specifications

Width (H) mm (in.)

14.4(0.57)

Thickness (A) mm (in.)

1.5(0.06)

11-8

ENGINE

BASE ENGINE