maintenance MITSUBISHI ECLIPSE 1990 Service Manual

GENERAL - Technical Featureso-5ENGINE
The engines are the transverse-mounted engine
especially for front-engine/front-wheeldrive orfront-engine/4-wheel drive models, the
2.OL DOHC
16-valve engine with high-performance, silent-
operation,low-vibration,low-noise,low-fuel-
consumption features, an engine that fully displays
the most
up-todate engine technology.
SPECIFICATIONS
Engine model
Displacement
cc (cu.in.1
h$xo$put (SAE net)Max. torque (SAE net)
ft.Ibs./rpm
4G63Non-Turbo1997(122)135/6000125/5000
4663Turbo1997(122)195/6000203/3000
FEATURESHigh performance and low fuel consumption
l The rocker arm reduces the valve-actuation torque as well as fuel consumption.
l Air-intake efficiency improved through the adoption of the optimum air-intake system layout.
l Improved response and fuel consumption has been achieved by electronic control multipoint
fuel injection.
l Water-cooled turbocharger.
Quiet operation
l Noise and vibration have been decreased by the adoption of roller rocker arms.
l Noise generated by the valve mechanism has been decreased by the hydraulic auto lash adjusters.
l Vibrations have been decreased by the adoption of bearing caps with beams which increase the
rigidity of the crankshaft support points.
-Serviceability
l Complete self-diagnosis functions.
l Enhanced reliability through the adoption of gold-plated connector terminals.
l Use of an auto tensioner achieves maintenance-free, automatic adjustment of timing belt
tension.
l Use of the auto lash adjusters achieves maintenance-free, automatic adjustment of valve clearance
.o The 2coil ignition system without a distributor supplies sufficient ignition energy even during
high speed operation.

8-16ELECTRICAL - Lighting
LIGHTINGHEADLIGHT
The parallel-link pop-up headlights are employed
that move up or down vertically as they are turned
ON or OFF. They are aerodynamic to offer less
resistance to air when the vehicle is in forward
motion.
The headlights can be moved up and down with the
lighting switch or pop-up switch. An independent
headlight moving mechanism is provided for theRo3liAAAright and left headlights: should one mechanism fail,
the other remains operative.
In addition, when the passing light is used, the
headlights are turned ON in the lowered position
without popping up.
There is also a manual knob installed that can be
used to move up and down the headlights manually
when maintenance is required.
nual knob
POD-UD
NOTESee P.8-12 for relays.
Hinge
-r -rmotor
~ SpsernbI y_Headlight
1RAoa50
Pop-up motor ’
16AOWOCONSTRUCTION
Pop-upThe mechanism consists of the pop-up motor which moves the
headlights up and down. The hinge and link assembly connect
the pop-up motor to the headlight. When the pop-up switch or
lighting switch is turned ON, the pop-up motor is started
causing the link assembly to move the hinge, which results in
the headlight moving up. A parallel link system is employed for
the hinge, in which the hinge is moved about the two fixed
points as shown, which ensures that the headlights are moved
up and down vertically.
.

ELECTRICAL - Lighting8-17
Front turnsignal light
(Optical horn)
Pas+ing Light
The parallel-link pop-up headlight mean that the headlights are
facing forward even when they are in the lowered position.
When the passing light is used, therefore, the headlights are
turned ON and the light is radiated through the optical horn
rr,“;; installed to allow the light through) of the side turn signal
OPERATION
tieadlight Operating ConditionsManual Knob
The manual knob, located behind the pop-up motor, is used to
move up or down the headlights manually when maintenance
is required.
To operate the manual knob, remove the boot behind the
popup motor and turn the knob clockwise. To ensure safety,
disconnect the negative battery cable or remove fusible link
(4)whenever the manual knob is to be operated.
Switch positionUP
Headlight
DOWN
ONOFF
f%+Pswitch
ON
OFF
Lightingswitch
Passingswitch
Lightingswitch
Passingswitch
ONXX
OFF
XX
ONXX
OFF
XX
ONXX
OFFXX
ONXX
OFF
XXI
NOTE
‘X” indicates the resultant headlight operation or position. When the lighting switch is ON, it is in the “HEAD” position.

BODY - Main Body23-15MAINTENANCE SERVICEABILITY
;ide Structure
Notches are provided in the door
openings for use in aligning panel positions, thus facilitating the assembly of
new parts.
32AOO89Body Center Points
Body center points are provided at the following locations, which serve as reference points for measurements
at replacement of panels. (Refer to “Body Dimensions”.)32A0108
Front body center point reference locationRear body center point reference location