rod MITSUBISHI ECLIPSE 1990 Service Manual

SAFETY NOTICE
CAUTIONALL SERVICE AND REBUILDING INSTRUCTIONS CONTAINED HEREIN ARE
APPLICABLE TO, AND FOR THE CONVENIENCE OF, THE AUTOMOTIVE
TRADE ONLY. All test and repair procedures on components or assemblies in
non-automotive applications should be repaired in accordance with instructions
supplied by the manufacturer of the total product.
Proper service and repair is important to the safe, reliable, operation of all motor vehicles.
The service procedures recommended and described in this publication were developedfor professional
servlTe personnel and are effective methods for performing vehicle
repair.Following these procedures will help assure efficient economical vehicleperformance
and service reliability. Some of these service procedures require the use of
special tools designed for specific procedures. These special tools should be used when
recommended throughout this publication.
Special attention should be exercised when working with spring or tension loaded
fasteners and devices such as E-Clips, Circlips, Snap rings, etc., as careless removal
may cause personal injury. Always wear safety goggles whenever working on
vehicles or vehicle components.
7
It is important to note that this publication contains various Cautions and Warnings.These
should be carefully read in order to minimize the risk of personal injury, or thepossibility
that, improper service methods may damage the vehicle or render it unsafe.It
is important to note that these Cautions and Warnings cover only the situations and
procedures Chrysler Motors has encountered and recommended. Chrysler Motors couldnot possibly know,
evaluate, and advise the service trade of all conceivable ways thatservice
may *be performed, or of the possible hazards of each. Consequently, ChryslerMotors
has not undertaken any such broad service review. Accordingly, anyone who
uses a service procedure, or tool, that is not recommended in this publication, must assure
oneself thoroughly that neither personal safety, nor vehicle safety, be jeopardized bythe service
methods they select.
WE SrjPPORT
VOLUNTARY TECHNICIAN
CERTIFICATION
THROUGH

o-2GENERAL - Technical Features
TECHNICAL FEATURESROOCAAB
EXTERIORLow and wide profile for appearance sports car
impression.
OOA0190 2
7OOA0189
I
1 No. tFeatures
1Flush surface and low front high rear styling for outstanding aerodynamic performance
2Pop up headlights of optical horn type
3Hood bulge indicating DOHC engine
4Futuristic glass upper body
5Removable tilt up sunroof (option for all models)If
6Smooth integrated body lines giving a lean appearance
7Wide tires and wide tread to emphasize power and stabilityI1
aBumpers made integral with the bodyi
9Wall to wall tail lamps for sporty imageIi
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FRONT SUSPENSION - General Information2-3
SPECIFICATIONS
<2WD>terns
Suspension system
Camber
Caster
Toe-inmm (in.)
Coil springWire dia. x O.D.
x free lengthmm (in.)Coil spring identification color
Spring constantN/mm (IbsAn.)
Shock absorber
TypeMax. length
mm (in.)Min. length.
mm (in.)
Strokemm (in.)Damping force [at
0.3. m/set. (.984 ft./sec.)l
Expansion
N (Ibs.)Contraction
N (Ibs.)
Non-TurboTurbo
With a manualWith an automatic
With a manualtransaxletransaxletransaxle
McPherson strut with coil spring and compression rod type
5’
z!z 30’
2”24’ 31 30’
0
It 3 (0 * .12)
13.7x173.7x314 13.9x173.9x321.5
(.54 x 6.84 x 12.4)l.55 x 6.85 x 12.7)
Light blue x 1Light blue x 2
24 (134)24 (134)Hydraulic, cylindrical double-acting type
483
(19.02)330 (12.99)
153
(6.02)1,000
(220)300
(66)

FRONT SUSPENSION - General Information
c4WD>Items
Suspension system
CamberCaster
Toe-inmm (in.)
Coil springWire dia. x O.D. x free length
mm (in.)Coil spring identification color
Spring constantN/mm
(Ibs./in.)
Shock absorber
TypeMax. length
mm (in.)Min. length
mm (in.)
Strokemm (in.)Damping force [at 0.3
m/set. (.984 ft./set.)]Expansion
N (Ibs.)Contraction
N (Ibs.)Specifications
McPherson strut with coil spring and compression rod type
10’
+- 30’
2”18’ + 30’
0
zk 3 (0 f .l2)14.0 x 174.0
x 326.5 (.55 x 6.85 x 12.9)
Pink x 1
26 (146)
Hydraulic, cylindrical double-acting type
489 (19.25)
340 (13.39)
149 (5.87)
1,000 (220)
300 (66)

FRONT SUSPENSION- Lower Arm / Stabilizer2-7
LOWER ARM
ROZGAAAThe lower arm is an A-type arm, and is connected,
via a rubber bushing, to the crossmember.
The rod bushing is optimum tuned, including the
spring constant of the arm bushing, to provideand “hard” characteristics relative to the left and
right, so that road surface impacts during travel are
alleviated, and also so that changes of alignment
caused by lateral forces are reduced, thus assuring
“soft” characteristics relative to the front and rear
excellent
I driving stability.
Arm bushing
,m
Rod bushing
STABILIZERROZHAABThe stabilizer mounting uses
*pillow balls. The
adoption of a stabilizer link with a pillow ball on each
end increases the link stiffness and ensures the
effective operation of the stabilizer bar even when asmall rolling motion occurs,
NOTE* Pillow ball: Ball joint not preloaded.
Pillow ballStabilizer bar
12AOOOS
4--

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.
.

9-10PISTONENGINE- Base Engine
For non-turbo engineldentificatlonForturbo engine
Pin;nterline y FPiston ceyerline
6EN01246EN0125Steel strut6EN0249
Ij(1) The piston is the autothermic type with steel
struts cast into it..(2) The depth of the trough in pistonhead varies for
the non-turbo and turbo engines.
Piston
pinConnecting
rod?\i
~Piston
6EN0250
No. 1 piston ringPISTON RINGS
No.3
For turbo engine
(1) The No. 1 piston ring IS of the barrel type.
(2) The No. 2 piston ring is of the taper type. The surface in
contact with the cylinder wall is coated with hard chrome
plating.-
(3) The oil ring is of the three piece type, consisting of two sLrails and an expander.
.,YM,,fiFNflR7
,
(3) The piston pin is of the semi-floating type, press-fitted to
the connecting rod and rotates freely in the piston.

ENGINE- Base Engine9-11 7Oil jet
Front mark
6ENOO6lCONNECTING ROD
(1) The same connecting rod is used as that used in the 4663SOHC engine.
(2) The oil jet provided in the shoulder of the connecting rod is
used to lubricate the cylinder wall.
(3) The big-end bearing is the kelmet metal with metal backing.
CRANKSHAFT(1) The crankshaft is supported by the five main bearings.
(2) The oil passages drilled to the crankpins permit the flow of
lubricating oil from the main bearing to the connecting rod
bearing.(3) The crankshaft has been subjected to special surface
treatment. Therefore, do not grind it for reuse.
(4) The main bearing is an aluminum alloy with a backing of
another metal. The center bearing is provided with flanges
to receive the thrust load of the crankshaft.
Oil passage
6EN0089
16ENOOQO
Oil passage
INo. 51MAIN BEARING CAPSThe No. 1 and No. 2 main bearing caps are joined, as are the
No. 4 and No. 5 main bearing caps, by means of a beam to
minimize vibration of the bearing saddles and to enhance
rigidity of the crankshaft support.
--
.--. _A

17-6REAR SUSPENSION <2WD> - Three-link Suspension
SUSPENSION BUSHINGS
In order to improve both the driving stability and
riding comfort even further, and to reduce vibration
and noise, the optimum spring characteristic has
been employed for each suspension bushing.
The front end of the trailing arm is elastically
coupled to the body via a rubber bushing of high
spring capacity. This rubber bushing has an asym-
metrical non-linear characteristic in the front-rear
direction. and therefore functions to reduce thetransmission of tire vibration input to the body itself.
Individual independent bushings (with non-linear
characteristics) are also employed at the couplings
to the body of the shock absorbers and the coil
springs; these, together with the use of spring pads
with large channels, serve to reduce the transmis-
sion of vibrations to the body, thereby improving
even further the driving stability and riding comfort.
Lateral rod bushingBushina A
hannel
f3ub
Torsional
barArm
bushmg\/HollowHoilow
Section A-A

REAR SUSPENSION- Double Wishbone Suspension17-15TRAILING ARM
The trailing arm has a welded axle housing, knuckle
and shock absorber bracket. The axle housing is
machined after welded to the trailing arm to
improve its presicion. The arm has a connecting rod
for toe-in correction. The connecting rod consists ofa rod rubber and trailing arm bushing. It is inserted
into the trailing arm and can make a rotary motion
relative to the bolt.
Section A-A
bBBolt
ubber
RodRod12A0045
Ii
Connecting rod
Section C-C
Trailing armbushiyg
\Co;lnecting
rod1240043
Section B-B
Knuckleii-l /
Shock absorber bracket,,
I12ACO51