checking oil MITSUBISHI ECLIPSE 1991 User Guide

9-130ENGINE <2.0L DOHC Engine> - Piston and Connecting Rod
8. INSTALLATION OF PISTON RING
NO.217. PISTON
RING
NO.1
\ ’7EN250
Non-TurboTurbo
Upper
LCsiae rail
6
3wer’ ‘I
EN041
No.2 ring gap
and spacer gap
der
No.
Notch
DEN057Using a piston ring expander, fit the
No.2 and then No. 1 n*tpiston ring into position.
NOTE
1.Note the difference in shape between No. 1 and No. 2
piston rings.
2.Install piston rings No. 1 and No. 2 with their side havingmarks facing up (on the piston crown side).
4. INSTALLATION OF PISTON AND CONNECTING ROD(1) Liberally coat engine oil on the circumference of the
piston, piston ring, and oil ring.
(2) Arrange the piston ring and oil ring gaps (side rail and
Aspacer) as shown in the figure.
(3) Rotate crankshaft so that crank pin is on center of
cylinder bore.
(4) Use suitable thread protectors on connecting rod boltstiefore inserting piston and connecting rod assembly
into cylinder block. Care must be taken not to nick crank
pin.(5) Using a suitable piston ring compressor tool, install
piston and connecting rod assembly into cylinder block.Caution
Insert the front mark
(aryow) on the top of the
piston so it faces the erigine front (timing belt side).
2. INSTALLATION OF CONNECTING ROD CAP(1) Mate the correct bearing cap with the correct connect-
ing rod by checking with the alignment marks marked
during disassembly. If a new connecting rod is used
which has no alignment mark, position the notches for
locking the bearing on the same side.
I;r.

14-6FUEL SYSTEM - Special Tools/Troubleshooting
SPECIAL TOOLSNWA-B
Number
M D998742
Name
Hose adapter
Usel Measurement
of fuel pressure (to be usedtogether
with MD9987091
MD998709Adapter hosel Measurement of fuel pressure (to be usedtogether
with MD9987421
TROUBLESHOOTING
When checking and correcting engine troubles, it is
important to start with inspection of the basic
systems.
In case you have such troubles as (1) engine start
failure, (2) rough idling or (3) poor acceleration,
therefore, you should first check the following basic
systems:
(1) Power supply
0 Batteryl
Fusible linkl
Fuse
(2) Body ground
(3) Fuel supplyl
Fuel linel
Fuel filter
l
Fuel pump
N14EBBH
(4) Ignition systeml
Spark plugsl
High tension cablel Distributor
<1.8L Engine>
l
Crank angle sensor <2.0L DOHC Engine>
0 Ignition coil
(5) Emission control systeml
Crankcase ventilation systeml
Exhaust gas recirculation systeml
Vacuum leak
(6) Others
0 Ignition timing
l
Idle speed
Troubles with the MPI system are often caused by
poor contact of harness connector. It is, therefore,
important to check harness connector contact.

FUEL SYSTEM - MPI Svstem InsDection <1.8L Engine>14-65
3FUO349
/--
’ 3FU03991
Idle speed controlservo connector(motor side, front view)
3FUO393
INHIBITOR SWITCHN14QRACsRefer to GROUP 21
- Service Adjustment Procedures.
POWER STEERING OIL PRESSURE SWITCH
N14flCJBRefer to GROUP 19 for power steering system inspection.
INJECTORSN14QTAGCHECKING OPERATION SOUND
Using a sound-scope, check the operation sound (“chi-chi-chi”)of injectors during idling or during cranking.
Check that as the rotating speed increases, the frequency of
the operating sound also increases.
Caution
Note that even if the injector you are checking is not
operating, you will hear the operating sound of the other
injectors.
NOTEIf no operating sound is heard from the injector that is being
checked, check the injector drive circuit. If there is nothing
wrong with the circuit, a defective injector or engine control
unit is suspected.
MEASURING RESISTANCE BETWEEN TERMINALS
(1) Remove the injector connector.
(2) Measure the resistance between the terminals.
Standard value: 13
- 16 L(Z [at 20°C (68”F)I(3) Install the injector connector.
IDLE SPEED CONTROL SERVO
INSPECTION
NlQQUAAb(1) Disconnect the idle speed control servo connector.
(2) Check continuity of the idle speed control servo coil.
IMeasuring terminalsIContinuityI
@ - @ Conductive5 to 35 fi resistance
at 20°C (68°F)

FUEL SYSTEM - MPI System Inspection <2.0L QOHC Engine>14-79EGR TEMPERATURE SENSOR
N14RCHAaRefer to GROUP 25
- Exhaust Gas Recirculation System.
VEHICLE SPEED SENSOR
Refer to GROUP 8
- Meters and Gauges.
N140EBBaAIR CONDITIONER SWITCH
Nl4QQAEaRefer to GROUP 8
- Column Switch.
POWER STEERING OIL PRESSURE SWITCH
N14RCJBRefer to GROUP 19 for power steering system inspection.
INJECTORS
NWXAHCHECKING OPERATION SOUND
Using a sound-scope, check the operation sound (“chi-chi-chi”)of the injectors during idling or during cranking.
Check to be sure that the operation sound increases when the
engine speed is increased.
Caution
Note that the sounds of other injectors may be heard even
though the injector being checked is not operating, so caremust be taken when checking.
NOTEIf the operation sounds cannot be heard, check the injector
activation circuit.
If this circuit is normal, there is probably a malfunction of the
injector or of the engine control unit.
MEASURING OF RESISTANCE BETWEEN TERMINALS
(1) Disconnect the connector for the injectors.
(2) Measure the resistance between terminals.
Standard value:
13
-16 S2 [at 20°C (68”F)]2
- 3 52 [at 20% (68”F)]
(3) Connect the connector for the injectors.
IDLE SPEED CONTROL SERVO
N14QUADCHECKING OPERATING SOUND
(1) Check that when the ignition switch is placed in the ON
position (the engine not started), the operating sound of thestepper motor can be heard over the idle speed control
servo.
(2) If no operating sound can be heard, check the stepper
motor drive circuit.
(If the circuit is good, a defective stepper motor or engine
control unit is suspected.)

14-80FUEL SYSTEM - MPI System Inspection <2.0L DOHC Enginh
7FUOOlO6FU1426
7FUOOllCHECKING COIL RESISTANCE
(1) Disconnect the idle speed control servo connector.
(2) Measure the resistance between terminals
@ and @ or
between terminals @and @ of the idle speed control servo
connector.Standard resistance: 28
- 33 fl [at 20°C (68”F)l(3) Measure the resistance between terminals
@ and @ or
between terminals @ and @ of the idle speed control servo
connector.Standard resistance: 28
- 33 LR [at 20°C (68”F)]OPERATION CHECK
(1) Remove the throttle body.
(2) Remove the stepper motor.
(3) Apply voltage as indicated below and check for presence/
absence of vibration due to stepper motor operation.
1. Connect the positive terminal of the power supply
(about
6V) to terminals @ and @ of the connector.
2. Connect the negative terminal of the power supply to
terminals @ and
@.3. Connect the negativeterminal to terminals
@ and @.
4.Connect the negative terminal to terminals @ and @.
5.Connect the negative terminal to terminals @ and @.6. Connect the negative terminal to terminals
@ and @.7. Connect the terminals in sequence from step 6 to 2.
(4) If vibration is felt as a result of the inspections, the stepper
motor can be judged as normal.

14-82FUEL SYSTEM - MPI System Inspection <2.0L DOHC Engine>
\ \\I \3FUO352
,\ \
\I \3FUO353
,\ ‘\R/
\ \\I \3FUo354
POWER TRANSISTORRefer to GROUP 8
- Ignition System
NlIAcQAl
a-4
AIR CONDITIONER POWER RELAYN14NCl.a -Refer to GROUP 24
- Air Conditioner.
PURGE CONTROL SOLENOID VALVEN14RCKARefer to GROUP 25
- Evaporative Emission Control System.
EGR CONTROL SOLENOID VALVE
N14NCURefer to GROUP 25
- Exhaust Gas Recirculation System.
FUEL PRESSURE CONTROL VALVE
OPERATIONAL CHECK
NOTEBefore the vacuum hoses are removed, make a mark’on the
-
hose for visual identification so that they can be reconnected in,their original positions.
(1) Remove the vacuum hoses (blue stripes and black) from
the solenoid valve.
(2) Disconnect the harness connector.
(3) Apply vacuum with a hand vacuum pump to the nipple to
which the black vacuum hose was connected and check for
air tightness both when a voltage is applied to the solenoidvalve terminal and when the voltage is removed.
Battery voltageOther nipple of
solenoid valveNormal condition
When voltage
is removed
When voltage
is applied
OpenVacuum leaks
Blocked by fingerVacuum is retained
OpenVacuum is retainedCHECKING
COIL RESISTANCE
Measure the coil resistance with a tester.
Standard resistance: 36
- 46 R [at 20°C (68”F)]

STEERING - Service Adjustment Procedures < Power Steering >194113AO29313AO290
STEERING WHEEL CENTERINGNlSFIYAFCenter the steering wheel in the same way as the manual
steering. (Refer to P.19-8.1
STATIONARY STEERING EFFORT CHECKNlSFFAI
1. With the vehicle stopped on a flat, paved surface, turn the
steering wheel to the straight ahead position.
2. Start the engine and set it to 1,000 + 100 rpm.
Caution
After checking the engine rpm., there must be a return to
the standard idling rpm.3. Attach a spring balance to the outer circumference of the
steering wheel and measure the steering force required to
turn the steering wheel from the straight ahead position to
the left and right (within a range of 1.5 turns).
Also check to be sure that there is no significant fluctuationof the required steering force.
Standard value:
Steering effort37
N (8 lbs.) or less
Fluctuation allowance6 N (1.3 Iljs.)‘or less:...
STEERING WHEEL RETURN TO CENTER CHE$$$aETo make this test, conduct a road test and check as follows.
1.Make both gradual and sudden turns and check the steering
“feeling” to be sure that there is no difference in the steeringforce required and the wheel return between left and right
turns.2. At a speed of 35 km/h
(22 mph), turn the steering wheel
90°, and release the steering wheel after 1 or 2 seconds.
If the steering wheel then returns
70” or more, the return
can be judged to the satisfactory.
NOTE
There will be a momentary feeling of “heaviness” when thewheel is turned quickly, but this is not abnormal. (This is
because the oil pump discharge amount is especially apt to
be insufficient during idling.
1

19-14STEERING - Service Adjustment Procedures < Power Steering >Shut-off valv
Pressure gauge
(FW close)
(C-3309-E)I
Temperature
gauge
\e’\
Pressure hoses
Re(Mti990994)
\Oil pump
713AO145Shut-off valve
Pressure gauge(FullY ?penl
Pressure hoses
OIL PUMP PRESSURE TESTNl9FlAF
CHECKING THE OIL PUMP RELIEF PRESSURE1. Disconnect the pressure hose from the oil pump, and then
connect the special tools.
2.Bleed the air, and then turn the steering wheel several timeswhile the vehicle is not moving so that the temperature of
the fluid rises to approximately
50-60°C (122-14OOF).3. Start the engine and idle it at 1,000
f 100 rpm.
4. Fully close the shut-off valve of the pressure gauge and
measure the oil pump relief pressure to confirm that it is
within the standard value range.
Standard value: 7.5-8.2
MPa (1,067-1,166 psi)
Caution
Pressure gauge shut off valve must not remain closed formore than 10 seconds.
5.If it is not within the standard value, overhaul the oil pump.
6.Remove the special tools, and then tighten the pressure hoseto the specified torque.
7. Bleed the system.
CHECKING THE PRESSURE UNDER NO-LOAD CONDITIONS1. Disconnect the pressure hose from the oil pump, and then
connect the special tool.
2.Bleed the air, and then turn the steering wheel several timeswhile the vehicle is not moving so that the temperature of
the fluid rises to approximately
50-60°C (122-14OOF).3. Start the engine and idle it at 1,000
-t 100 rpm.
4.
Check whether or not the hydraulic pressure is the standard
value when no-load conditions are created by fully openingthe shut-off valve of the pressure gauge.
Standard value:
0.8-I .O MPa (114-142 psi)
Limit: 1.5
MPa (213 psi)
5. If it is not within the standard value, the probable cause is
a malfunction of the oil line or steering gear box, so check
these parts and repair as necessary.
6.Remove the special tools, and then tighten the pressure hoseto the specified torque.
7. Bleed the system.

-
c. .
STEERING - Service Adiustment Procedures 3:945
Shut-off valve
Pressure gauge
CHECKING THE STEERING GEAR PETENTION HYDRAULIC
PRESSURE1. Disconnect the pressure hose from the oil
pbmd, and iheh
connect the special tools.
2.Bleed the air, and then turn the steering wheel several timeswhile the vehicle is not moving so that the temperature of
the fluid rises to approximately
50~60OC (122~14pyF).
3. ‘Start the engine and idle it at 1,000 +
100 rem: .‘,’.
4.Fully close and fully open the shut-off valve of the pressure
gauge.
5.Turn the steering wheel all the way to the left or right; then
check whether or not the retention hydraulic pressure is the
standard value.
Standard value: 7.5-8.2 MPa (1,067-1,166 psi)6. When not within the standard value, overhaul the steering
gear box.
Remeasure fluid pressure.
7.Remove the special tools, and then tighten the pressure hoseto the specified torque.
8. Bleed the system.
OIL PRESSURE SWITCH CHECKNlSFUAB1. Disconnect the pressure hose from the oil pump, and then
connect the special tools.
2.Bleed the air, and then turn the steering wheel several timeswhile the vehicle is not moving so that the temperature of
the fluid rises to approximately
50-60°C (122-14OOF).3. The engine should be idling.
4. Disconnect the connector for the oil pressure switch, and
place an ohmmeter ,in position.
5.Gradually close the shut-off valve of the pressure gauge andincrease the hydraulic pressure then check whether the
hydraulic pressure that activates the switch is the standard
value.
Standard value: 1.5-2.0 MPa (213-284 psi)
6. Gradually open the shut-off valve and reduce the hydraulic
pressure; then check whether the hydraulic pressure that
deactivates the switch is the standard value.
Standard value: 0.7-1.2 MPa (100-171 psi)
7.Remove the special tools, and then tighten the pressure hoseto the specified torque.
8. Bleed the system.

STEERING - Power Steering Oil Pump1849
POWER STEERING OIL PUMP
“@REMOVAL AND INSTALLATION
< 1.8L Engine >35-45 Nm25-33 ft.lbs.
20-30 ft.lbs.
13A0270
< 2.0L DOHC Engine >
35-45 Nm25-33 ft.lbs./
NlgRA-
Pre-removal Operation0 Draining the Power Steering Fluid
‘/1
7
25-33 Nm18-24 ft.lbs.
35-45 Nm
Post-installation Operation0 Supplying of the Power Steering
Fluid0 Bleeding the Power Steering Fluid
Line(Refer to P.79-13.)0 Checking of the Oil Pump Pressure(Refer to P.l9-14.)~
9-14 Nm
7-10 ft.lbs.
\
1
9-14 Nm7-10 ft.lbs.
13AO269
Removal steps1. Pressure switch connector
a*2. Return hose
4*3. Suction hose+r) .+ 4. Pressure hose
5. O-ring
6. V-belt
7. Oil pump
8. Oil pump bracket
9. Heat protector
<2.0L DOHC Engine>10. Oil reservoir
1 1. Reservoir bracket
NOTE(I) Reverse the removal procedures to reinstall.
(2) *I) : Refer to “Service Points of Removal”.(3) l a : Refer to “Service Points of Installation”.(4) 0 : Non-reusable parts