engine oil MITSUBISHI LANCER EVOLUTION X 2008 Owner's Guide

12-1
GROUP 12
ENGINE
LUBRICATION
CONTENTS
GENERAL DESCRIPTION. . . . . . . . .12-2
OIL PASSAGE . . . . . . . . . . . . . . . . . .12-2
OIL FILTER . . . . . . . . . . . . . . . . . . . .12-3
OIL PAN . . . . . . . . . . . . . . . . . . . . . . .12-3
OIL DIPSTICK, OIL FILLER CAP,
OIL DRAIN PLUG . . . . . . . . . . . . . . . .12-4
OIL PUMP . . . . . . . . . . . . . . . . . . . . . .12-4

GENERAL DESCRIPTION
ENGINE LUBRICATION12-2
GENERAL DESCRIPTIONM2120000100249
The lubrication system is a full-flow, filter pumping
system.
The engine oil that accumulates in the oil pan is
drawn and discharged by the oil pump. After its pres
-
sure is regulated by the relief valve, the oil passes
through the oil filter. Then, it flows from the oil pas
-
sage in the cylinder block to the individual crankshaft
journals and the cylinder head.
After the oil is pumped to the individual crankshaft
journals, it passes through a passage in the crank
-
shaft and is fed to the pins. After the oil is pumped to
the cylinder head, it flows to the camshaft journals
and the engine oil control valves.
OIL PASSAGEM2120000200194
AK603615
Oil screen
Oil pan Relief valve
V.V.T. sprocket Engine oil control valveOil pump
Oil filter
Engine oil pressure swichOil filter bracket Cylinder block oil passage
Crankshaft journal
Camshaft journal
Crankshaft pin Cylinder block oil passage
(main gallery)
Cylinder head oil passage
AB

OIL FILTER
ENGINE LUBRICATION12-3
OIL FILTERM2120005000195
The oil filter is installed on the left side of the cylinder
block.
OIL PANM2120006000187
The oil pan is made of sheet metal and contains an oil sump in
the forward area of the engine.
FIPG (Formed-In-Place Gasket) is used to seal between the oil
pan and the ladder frame.
ItemSpecifications
Filtering systemFull-flow filtering, filter
paper type
Filtering area m20.11
Rated flow volume L/min30
AK502549
Element
Oil filter
AD
AK603617
Drain plugGasketOil pan
Engine frontAB

OIL DIPSTICK, OIL FILLER CAP, OIL DRAIN PLUG
ENGINE LUBRICATION12-4
OIL DIPSTICK, OIL FILLER CAP, OIL DRAIN PLUGM2120007000124
The oil dipstick, oil filler cap, and oil drain plug are
located with serviceability in mind.
OIL PUMPM2120002000077
The oil screen is integrated into the oil pump case to
be compact and lightweight.The oil pump case, which is installed to the bottom of
the ladder flame, is driven by the oil pump chain
through the oil pump sprocket installed to the front of
the oil pump case.
AK503035
Oil drain plug
Engine front
Oil dipstickOil filler cap
AD

GENERAL INFORMATION
POWER STEERING37-2
GENERAL INFORMATIONM2370000101003
FEATURES
A hydraulic power steering system has been adopted
to all models.
This steering system offers the following features:
•The support method of the steering gear to the
crossmember is realised by the left and right
internal bushings with inner cylinders. This sup
-
port method achieves higher rigidity of the steer-
ing gear and improves the steering feeling.
•Configuring the optimum flow characteristics and
gear valve feature improves the handling stability.
•Appropriate application of friction to the steering
gear cuts off the disturbance from the road sur
-
face and improves the stability during the
straight-ahead driving.
•Optimisation of the flexible tube in the high pres-
sure hose reduces the pump noise.
SPECIFICATIONS
ItemsSpecifications
Steering wheelTy p eThree-spoke type
Outside diameter mm (in)375 (14.7)
Maximum number of turns3.16
Steering columnColumn mechanismShock absorbing
mechanism and Tilt steering
mechanism
Power steering typeIntegral type (Engine
speed-dependent type)
Oil pumpTy p eVane type with fluid flow
amount control system
Basic discharge amount cm3/rev. (cu in/rev)8.1 (0.49)
Relief pressure MPa (psi)8.8 (1,276)
Reservoir typeSeparate type (Resin made)
Steering gearTy p eRack and pinion type
Stroke ratio (Rack stroke/Steering wheel
Maximum turning radius) mm/rev (in/rev)45.58 mm/rev (1.79 in/rev)
Rack stroke mm (in)144
Steering angleInner wheel40°50’
Outer wheel33°50’
Power steering fluidSpecified lubricantsGENUINE MITSUBISHI
POWER STEERING FLUID
Quantity dm3 (qt)Approximately 1.0 (1.06)

OIL PUMP
POWER STEERING37-6
Secondary collision
When the driver's body falls against the steering wheel via the
deployed air bag, the column bracket moves forward by
deforming the rivet pin of the one-way capsule, and simulta
-
neously the steering column assembly frees from the pin of col-
umn bracket to move forward and downwards.
OIL PUMPM2370004000373
The oil pump is a vane type with a fluid flow control
system which functions so the steering wheel turning
effort will be reduced at low engine speeds and
increase at higher speeds. The oil pump is essentially the same as the conven-
tional one in construction.
AC611053AB
AA
BB
One way
capsule
Section B - BSection A - A Column
bracketRivet pin
Column pipe Before collision
After collision
AC607645AB
A
AColumn
bracket
Column pipe
Pin Section A - A