1991 MITSUBISHI ECLIPSE oil

9-72ENGINE <1.8L Engine> -Crankshaft, Flywheel and Drive Plate/Cylinder Block
PressOil seal
I
MD99801 1
/
Oil seal case1 EN06L
CYLINDER BLOCK
i//
199.
INSTALLATlON OF REAR OIL SEAL
Install oil seal in the crankshaft rear oil seal case. Using the
special tool, press fit the oil seal all the way in without tiltingiii
it.DISASSEMBLY AND REASSEMBLY
FORWARD
50-70 Nm37-50 ft.lbs.
30-42 Nm22-30 ft.lbs.
NDBVF-A
110-130 Nm80-94 ft.lbs.1. Exhaust pipe support bracket
2. Front roll stopper bracket
3. Rear roll stopper bracket
4. Left engine support bracket5. Cylinder block6. Engine mount bracket
3EN0092
INSPECTIONl Visually check the cylinder block for scores, rust and
corrosion. Also check for cracks or any other faults by using
the magnaflux method. Correct or replace the block if
faulty.
lMeasure the cylinder bore with a cylinder gauge at three
levels and in two directions A and
B as shown. If
out-of-round or taper is more than specified or if the
cylinder walls are badly scuffed or scored, the cylinder
&block should be rebored and honed, and new oversize
_pistons and rings fitted.
Measuring points are as shown.
Cylinder bore: 80.8 mm (3.173 in.)
Out-of-round and taper: 0.01 mm (.0004 in.)

9-74ENGINE <2.0L DOHC Engine>- Service Adjustment Procedures
ENGINE <2.0L DOHC Engine>
SERVICE ADJUSTMENT PROCEDURES pi
CHECKING COMPRESSION PRESSURENOSFFAH(1) Before checking compression, ensure that engine oil, the
starter motor, and battery are all in good condition.
(2) Start the engine and wait until engine coolant temperature
has risen to
85-95°C (185-205°F).
(3) Stop the engine and pull the spark plug cables.
(4) Remove the spark plugs.
(5) Crank the engine
to. remove any foreign objects in the
cylinders.
Caution
Cover the spark plug holes with shop towel, etc., in
order to keep expelled foreign objects from flying out,and keep away from the holes. When measuring
compression with water, oil, or fuel having entered the
cylinder through a crack, etc., these will come flying
out of the spark plug hole hot and fast, so be sure to
take the proper precautions.(6) Set the compression gauge to the spark plug hole.
(7) Holding the throttle valve full open, crank the engine and
measure compression.
Limit:
: Min. 960 kPa (137 psi)
[250-400 rpm]6: Min. 800
kPa (114 psi) [250-400 rpml-(8) Perform 6 and 7 above for all the cylinders, ensuring that
compression pressure differential for each of the cylinders
is within the specified limit.
Differential limit: Max. 100 kPa (14 psi)(9) If a cylinder’s compression or pressure differential exceeds
the limit, add a small amount of oil through the spark plug
hole and repeat steps (6)-(8).
@If the addition of oil brings compression up, it is possiblethat there is poor contact between the piston ring and
cylinder wall.
@ If not compression does not come up, valve seizure,
poor valve seating, or a compression leak from the
gasket are all possible.‘I

9-76ENGINE <2.0L DOHC Engine> -Service Adjustment Procedures
LASH ADJUSTERS CHECKNOBFEABalIf an abnormal noise is heard from the lash adjusters check as
follows.
(1) After warming up the engine, stop it.
(2) While installed to the cylinder head, press the part of rockerarm that contacts the lash adjuster. The part pressed will
feel very hard if the lash adjuster condition is normal.
(3) If, when pressed, it easily descends all the way downward,
replace the lash adjuster.
(4) If there is a spongy feeling when pressed, air is probably
mixed in, and so the cause should be investigated. The
cause is probably an insufficient amount of engine oil, or
damage to the oil screen and/or screen gasket.
(5) After finding the cause and taking the appropriate step
(adding oil or repair), warm up the engine and drive at low
speed for a short time. Then, after stopping the engine andwaiting a few minutes, drive again at low speed. Repeat
this procedure a few times to bleed out the air from the oil.

ENGINE <2.0L DOHC Engine> - Engine Assembly
ENGINE ASSEMBLY
- REMOVAL AND INSTALLATION
;-
Pre-removal Operationl Eliminating Fuel Pressure in Fuel Line(Refer to GROUP 14-Service AdjustmentProcedures.)*Removal of Engine Hood
@Draining of Engine Coolant(Refer to GROUP 7-Service Adjustment Pro-
cedures.)*Removal of the Transaxle Assembly
(Refer to GROUP 21 -Transaxle Assembly.)
*Removal of the Radiator
(Refer to GROUP 7-Radiator.)
*Removal of Under Cover Left
26'
15
I4-6 Nm\I /MAO571
19@Installation of Under Cover Left
*Installation of the Transaxle Assembly
(Refer to GROUP 21 -Transaxle Assembly.)
I l Refilling of Enaine Coolant
/22/ 4-6 ‘Nm\213-4 ftlbs.23
Removal steps
~~1. Connection for accelerator cable orthrottle cable
2. Connection for accelerator cable (Auto-
cruise control)3. Connection for fuel return hose
4. Connection for brake booster vacuum
hose
5. Connection for solenoid valve (Turbo)
6. Solenoid valve bracket (Turbo)
7. Connection for air hose A (Turbo)
8. Connection for air hose
C (Turbo)9. Connection for fuel high pressure hose
10. O-ring11. Connection for heater hoses12. Connection for vacuum hoses
13. Connection for oxygen sensor
14. Connection for engine coolant
temperature sensor
15. Connection for engine coolant
temperature gauge unit(Refer
t’o GROUP 7-Service Adjustment Pro-cedures.)l Installation of Engine Hood‘I
16. Connection for engine coolanttemperature switch (Air conditioner)
17. Connection for crank angle sensor
18. Connection for TPS19. Connection for
ISC and idle switch
20. Connection for fuel injectors
2 1. Connection for ignition coil22. Connection for power transistor
23. Connection for knock sensor (Turbo)
24. Connection for EGR temperature sensor
(California vehicles only)
25. Connection for ground cable26. Control wiring harness
NOTE(I) Reverse the removal procedures to reinstall.
(2) e+ : Refer to “Service Points of Installation”.(3) m : Non-reusable parts

9-82ENGINE <2.0L DOHC Engine> - Engine Assembly
23-27 Nm
/17-20 ftlbs.
60-60 Nm
43-58 ft.lbs.50-65 Nm*36-47 ft.lbs.*27. Connection for oil pressure switch (Power
steering)28. Connection for alternator
29. Alternator wiring harness clamp
30. Connection for oil pressure switch
31, Connection for oil pressure gauge unitl + l * 32.Power steering oil pump+9 ~~ 33. Air conditioner compressor
34. Self-locking nuts
35. Gasket
36. Pressure hose (Power steering)
37. Bracket
4*38. Engine mount bracket
30-40 Nm
22-29 ftlbs.
.--
OlAO561
1
I40-60 Nm
29-43 ft.lbs.39. Self-locking nut
+e l + 40. Engine assembly
NOTE(I) Reverse the removal procedures to reinstall.(2) l * : Refer to “Service Points of Removal”.(3) I)+ : Refer to “Service Points of Installation”.(4) m : Non-reusable parts(5)For tightening locations indicated by the * symbol, first
tighten temporarily, and then make the final tightening
with the entire weight of the engine applied to the
vehicle bodv.
SERVICE POINTS OF REMOVALNOSSBDFa
32. DISCONNECTION OF POWER STEERING OIL PUMPDisconnect the oil pump with hoses from the bracket.
NOTEThe removed power steering oil pump should be fastened
A(by using rope, etc.) in a position that will not interfere with
the removal/installation of the engine assembly.

r-.ENGINE <2.0L DOHC Engine>
- Engine AssemblyS-83
OlA0177
-mpp.-/- --OlA0553
33. DISCONNECTION OF AIR CONDITIONER COMPRESS-
ORDisconnect air conditioner compressor connector and
remove it with hoses from the compressor bracket.
NOTEThe removed air conditioner compressor should be fas-
tened (by using rope, etc.) in a position that will not
interfere with the removal/installation of the engine assem-
bly.
38. DISCONNECTION OF ENGINE MOUNT BRACKET
Before removing the engine mount bracket installation bolt,use a chain block or similar arrangement to suspend the
engine assembly (to the extent that there is no looseness
of the chain).
40. DISCONNECTION OF ENGINE ASSEMBLY
After checking that the cables, hoses, harness connectors,etc. are all removed, slowly raise the chain block to lift the
engine assembly upward out of the engine compartment.
SERVICE POINTS OF INSTALLATION
NOSSDAU
40. INSTALLATION OF ENGINE ASSEMBLYWhen mounting the engine, check to be sure that the
cables, hoses, harness connectors, etc. are all in the
correct position.
33. INSTALLATION OF AIR CONDITIONER COMPRESSORRefer to GROUP
24-Service Adjustment Procedures.
32. INSTALLATION OF POWER STEERING OIL PUMPRefer to GROUP 1
g-service Adjustment Procedures.
1. ADJUSTMENT OF ACCELERATOR CABLERefer to GROUP 14-Service Adjustment Procedures.

9-84ENGINE <2.0L DOHC Engine> -Camshafts and Camshaft Oil Seals
CAMSHAFR AND CAMSHAR OIL SEALSREMOVAL AND INSTALLATION
No8u-s
ppEJ=-j2.5-3.5 Nm
2.5-3.5 Nm
2-3 ft.lbs.2-3 ft.lbs.
lo-13 Nm
olmlzo++ 10. Crankshaft angle sensor
a*11. Exhaust camshaft sprocket80-100 Nm4*12. Intake camshaft sprocket
58-72 ftlbs.+e *+ 13. Camshaft oil seals
Removal steps+e e+ 14. front camshaft bearing caps41)
+4 15. Camshaft bearing caps
l +1. Connection for accelerator cable or+e +c 16. Rear camshaft bearing cap (R.H.)
throttle cable+e +4 17. Rear camshaft bearing cap (L.H.)
d+ l b2. Timing belt~~ 18. Exhaust camshaft
3. Center cover+q 19. intake camshaft
4. Connection for breather hose
5. Connection for PCV hose
NOTE
6. Connection for spark plug cables(1) Reverse the removal procedures to reinstall.(2) 4* : Refer to “Service Points of Removal”.l +7. Rocker cover
(3) l a : Refer to “Service Points of Installation”.~~ 8. Semi-circular packing(4) m : Non-reusable parts
9. I hrottle body stay
1:;*I: ~2:
SERVICE POINTS OF REMOVAL
No9zsAB
2. REMOVAL OF TIMING BELTRefer to P.9-98.