lock MITSUBISHI ECLIPSE 1991 Service Manual
[x] Cancel search | Manufacturer: MITSUBISHI, Model Year: 1991, Model line: ECLIPSE, Model: MITSUBISHI ECLIPSE 1991Pages: 1216, PDF Size: 67.42 MB
Page 410 of 1216

9-126ENGINE <2.0L DOHC Engine>- Front Case, Oil Pump and Silent Shaft
6EN0213
w Crank pulley side
Oil pan
from lower side
‘- Apply sealant7LUOOO0
6LUOO49 tBracket side
-----Be
\Apply oil9. INSTALLATION OF OIL PAN
(1) Clean both mating surfaces of oil pan and cylinder
+
block.
(2) Apply a 4 mm (.I 6 in.) wide bead of sealant to the entirecircumference of the oil pan flange.
Specified sealant:
MITSUBISHI GENUINE PART No.
MD9971 10 or
equivalent
(3) The oil pan should be installed in 15 minutes after the
application of sealant.
(4) Note the difference in bolt lengths at the location
shown.8. INSTALLATION OF OIL PRESSURE SWITCH
(1) Coat sealant on the thread area, and using the special
tool, install the pressure switch.
Specified sealant: MOPAR Part No.4318034
orequivalent
Caution
1. Do not let sealant ooze out of the top of the
thread area.
2. Do not overtighten the pressure switch.
(2) Install the oil pressure switch terminals.
5. INSTALLATION OF OIL COOLER
First insert the oil cooler projecting stopper in the oil filter
bracket groove and then tighten the oil cooler bolts.lu3. INSTALLATION OF OIL FILTER
Wipe clean the mounting surface on the filter bracket.
Then, apply a thin coat of engine oil to filter O-ring and
tighten the oil filter by hand.
Caution
-.Never use a wrench to tighten the oil filter.
-i
16LUO26
Page 414 of 1216

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.
Page 418 of 1216

g-134 ENGINE <2.0L DOHC Engine>- Crankshaft, Flywheel and Drive Plate
3EN301CRANKSHAFT REAR OIL SEAL
(1) Check oil seal lip for wear and damage.
(2) Check rubber for deterioration or hardening.
(3) Check oil seal case for cracks and damage.
RING GEAR (Engine with a manual transaxle)
Check teeth of ring gear for wear and damage. If necessary,
replace the ring gear.
If the ring gear teeth are worn or damaged, also check the
starter motor pinion.
To remove the ring gear, strike the ring gear at several points
on its outer circumference. The ring gear cannot be removed ifit is heated.
To install the ring gear, heat the ring gear to
300°C (572°F) for
shrink fit.
FLYWHEEL (Engine with a manual transaxle)
(1) Check the clutch disc friction surface for ridge wear,
streaks, and seizure. If necessary, replace flywheel.
(2) If the
runout of flywheel exceeds the limit, replace.++.Limit: 0.13 mm
(.0051 in.)
DRIVE PLATE (Engine with an automatic transaxle)
Replace deformed, damaged, or cracked drive plates.
SERVICE POINTS OF REASSEMBLYNWUGAB
14. INSTALLATION OF CRANKSHAFT BEARING (UPPER)
Install the upper crankshaft bearing to the cylinder block.
There is an oil groove in the upper crankshaft bearing.
There is no difference between upper and lower bearings
for the center (with flange).
12. INSTALLATION OF CRANKSHAFT BEARING (LOWER)
Install the lower crankshaft bearing (with no oil groove;
there is no difference for center) to each bearing cap and
apply engine oil to bearing surfaces.
Page 420 of 1216

9-136ENGINE <2.0L DOHC Engine> - Cylinder Block
CYLINDER BLOCK
DISASSEMBLY AND REASSEMBLY,+Ymaw-030-42 Nm22-30 ft.lbs.
/50-75 Nm40-54 ft.lbs.
4a
r.‘?’
’ cRoll stopper
bracket, front/.50-76 Nm
36-51
ftlbs.
’ Engine support
bracket, left
Roll stopper
bracket, rear-Cylinder block32-42 Nm22-30
ftlbs.
110-130 Nm60-64 ft.lbs.6EN0374
INSPECTION
NOTE
1.Clean parts to remove dust, oil, carbon deposits, and scale
before starting the inspection and ‘repair procedure.
2. Check cylinder block for water leaks and damage
b&fore
cleaning.3. Remove deposits from oil holes and make sure that they
are not clogged.
4. Keep parts neatly arranged according to a matched pair.
CYLINDER BLOCK(1) Visually check for scratches, rust, and corrosion.
Use also a flaw detecting agent for the check. If defects areevident, correct, or replace.~
(2) Using a straightedge and feeler gauge, check the block top-surface for
warpage. Make sure that the surface is free
from gasket chips and other foreign matter.
Standard value: 0.05 mm
(4020 in.) or less
Limit: 0.1 mm
(AM40 in.)
Page 421 of 1216

ENGINE <2.0L DOHC Engine> - Cylinder Block9437
Thrustdirection
6EN054-(3) If the distortion is excessive, correct within the allowable
limit or replace.
Grinding limit: 0.2 mm
(008 in.)
The total thickness of the stock allowed to be
removed from cylinder block and mating cylinder
head is 0.2 mm
(008 in.) at maximum.
Cylinder block height (when new): 284 mm (11.18 in.)
(4) Check cylinder walls for scratches and seizure. If defects
are evident, correct (bored to oversize) or replace.
(5) Using cylinder gauge, measure the cylinder bore and
cylindricity. If worn badly, correct cylinder to an oversize
and replace piston and piston rings. Measure at the points
shown in illustration.
Standard value:
Cylinder I.D.:
85.00-85.03 mm (3.3485-3.3476 in.)
Out-of-roundness and taper of cylinder bore:
0.01 mm
(6064 in.) or less
CYLINDER REBORINGNO9VEDCa(1) Oversize pistons to be used should be determined on the
basis of the largest bore cylinder.
Piston size identification
Size0.25 mm
(.Ol in.) O.S.
0.50 mm
(.02 in.) O.S.
0.75 mm
(.03 in.) OS.
1.00 mm LO4 in.) O.S.
Identification mark0.25
0.50
0.75
1 .oo
NOTESize mark is stamped on piston top.
(2) Measure outside diameter of piston to be used. Measure it
in thrust direction as shown.
(3) Based on measure piston O.D. calculate boring finish
dimension.Boring finish dimension
= Piston O.D. + (clearance
between piston O.D. and cylinder)
- 0.02 mm (.OOOSin.) (honing margin)
(4) Bore all cylinders to calculated boring finish dimension.
CautionTo prevent distortion that may result from temperature
rise during honing, bore cylinders, working from
No.2to No.4 to No. 1 to No. 3.
(5) Hone to final finish dimension (piston O.D. + clearance
between piston O.D. and cylinder).
(6) Check clearance between piston and cylinder.
Clearance between piston and cylinder:
0.02-064 mm (AMOS-,001~ in.)
0.03-0.05 mm (.OOW-.O020 in.)
NOTEWhen boring cylinders, finish all of four cylinders to same
oversize. Do not bore only one cylinder to an oversize.
Page 442 of 1216

II-20INTAKE AND EXHAUST - Turbocharger
TURBOCHARGER
REMOVAL AND INSTALLATION
II
NHLA-
Pre-removal Operation*Draining Engine Coolant
(Refer to GROUP
0-Maintenance Service.)
*Draining Engine Oil
(Refer to GROUP g-Engine
Adjustment.)1
Po+installation Operationl Flllrng Engine Oil(Refer to GROUP O-Main@
nance Service.)l Filling Engine Coolant(Refer to GROUP O-Mainte-
nance Service.)
12-15 Nm12-15 Nm
9- 11ft.lbs.3
12-15 Nm
9-l 1 ftlbs
moval steps
1. Condenser fan motor assembly< Vehicles with air conditioner >) *4 2. Oxygen sensor3. Engine oil level gauge guide4. O-ring
5. Connection for air intake hose6. Connection for vacuum hose7. Connection for vacuum hose8. Connection for air hose A9. Air outlet fitting
10.Gasket1 1.Heat protector A12. Heat protector B13. Power steering oil pump14. Oil pump bracket15.Self-locking nut16.Engine hanger17.Eye bolt
h-50 Nm29-36 ft.lbs.
19. Connection for water hosel * 20. Connection for water pipe f321. Self-locking nut22. Gasket23. Exhaust manifold24. Exhaust manifold gasket25. Ring26. Gasket
05M1149
Page 446 of 1216

II-24INTAKE AND EXHAUST - TurbochargerSERVICE POINTS OF DISASSEMBLYNllLFAB
5. REMOVAL OF SNAP RING
Place the compressor cover assembly on the floor with its
end surface down and remove the snap ring with pliers.
CautionDuring removal, hold with a finger the snap ring which
can spring out.
O-ring
3EN2396. REMOVAL OF CARTRIDGE ASSEMBLY
Remove the cartridge assembly by tapping the compressor
cover with a soft hammer.
Caution
Some resistance will be experienced in the removal dueto the O-ring on the cartridge assembly.
INSPECTION;.rulim+A
TURBOCHARGER
1.Inspect the cast-iron turbine housing for damage, cracks, or
evidence of contact between the turbine blades and the
housing.
2.Manually open and close the waste gate valve to make sure
it operates freely.
3. Inspect the turbine and compressor wheels for wear,
damage, bent or broken blades.
4.Inspect the oil passage in the cartridge for signs of deposits
or blockage.
5. Clean the inlet section of the compressor cover with a rag.
Inspect it for signs of contact with the compressor turbine.
If worn, replace it.WASTE GATE ACTUATOR
1.Leak-test the waste gate valve actuator with a hand vacuum
pump.Replace the actuator if it does not hold vacuum.
2. Check the rod to see that it is not bent or binding.
SERVICE POINTS OF REASSEMBLYNllLHAB
7. INSTALLATION OF O-RING
Coat the inner surface of a new O-ring with a thin film of
engine oil, and set it in the groove of the cartridge assembly.
Caution
Be careful not to damage the O-ring while installing it as
oil leakage could result.
Page 448 of 1216

1 I-26INTAKE AND EXHAUST -Exhaust Manifold c 1.8L Engine>
EXHAUST MANIFOLD
< 1.8L Engine>
REMOVAL AND INSTALLATION
20-24 ft.lbs.
05A0135Removal steps’
1. Engine oil level gauge guide
2. O-ring3. Self locking nut4. Gasket5. Oxygen sensor6. Exhaust manifold cover (A)
7. Engine hanger8. Exhaust manifold9. Exhaust manifold gasket10. Exhaust manifold cover (B)
NOTE(1) Reverse the removal procedures to reinstall.(2) 4, : Refer to “Service Points of Removal”.(3) q : Non-reusable parts
SERVICE POINTS OF REMOVALNHNBAG5. REMOVAL OF OXYGEN SENSOR
Disconnect the connector of the oxygen sensor, and install
the special tool to the oxygen sensor.
Then, using an offset (box-end) wrench, remove the oxygen
sensor.
INSPECTIONNllNCALO
Check the following points; replace the part if a problem is
found.-y=.EXHAUST MANIFOLD
Check for damage or cracking of any part.EXHAUST MANIFOLD GASKET
Check for flaking or damage of the gasket.
O-ring
3EN239
or blockage.
5. Clean the inlet section of the compressor cover with a rag.
Inspect it for signs of contact with the compressor turbine.
If worn, replace it.WASTE GATE ACTUATOR
1.Leak-test the waste gate valve actuator with a hand vacuum
pump.
Replace the actuator if it does not hold vacuum.
2. Check the rod to see that it is not bent or binding.
SERVICE POINTS OF REASSEMBLYNllLHAB
7. INSTALLATION OF O-RING
Coat the inner surface of a new O-ring with a thin film of
engine oil, and set it in the groove of the cartridge assembly.
Caution+%
Be careful not to damage the O-ring while installing it as__
oil leakage could result.
Page 449 of 1216

INTAKE AND EXHAUST- Exhaust Manifold <2.0L DOHC Engine (Non-Turbo) >11-27
EXHAUST MANIFOLD < 2.0L DOHC Engine (Non-Turbo) >
REMOVAL AND INSTALLATION,lcIii3\
I-**1
steps
1.Condenserfanmotor
2. Self locking nut3.Gasket
4. Exhaust manifold cover (A)12-15
Nm9- 11 ft.lbs.
06AOl56
5. Oxygen sensor6. Self locking nut
7. Engine hanger
8. Exhaust manifold9. Exhaust manifold gasket
0. Exhaust manifold cover
(B)
NOTE(I) Reverse the removal procedures to reinstall.(2) +* : Refer to “Service Points of Removal”(3) 0 : Non-reusable parts
NllNA6
SERVICE POINTS OF REMOVALNllNSAH
5. REMOVAL OF OXYGEN SENSOR
Disconnect the connector of the oxygen sensor, and installthe special tool
to the oxygen sensor.
Then, using an offset (box-end) wrench, remove the oxygen
sensor.
INSPECTIONNllNCALl
Check the following points; replace the part if a problem is
found.EXHAUST MANIFOLD
Check for damage or cracking of any part.EXHAUST MANIFOLD GASKET
Check for flaking or damage of the gasket.
Page 450 of 1216

11-28INTAKE AND EXHAUST - Exhaust Manifold ~2.0~ DOHC Enoine (Turbo)>
EXHAUST MANIFOLD <2.0L DOHC Engine (Turbo)>
REMOVAL AND INSTALLATION
Pre-removal Operation*Draining Engine Coolant(Refer to GROUP O-Mainte-nance Service.)*Draining Engine Oil(Refer to GROUP O-Mainte-nance Service.)
Rennova1 steps
1.Condenser fan motor assembly
\30-40 Nm22-29 ft.lty3. & (
EJ\\=a-50 N
4 .ri29-38 ftk.
,
Post-installation Operation@Filling Engine Oil(Refer to GROUP O-Mainte-nance Service.)@Filling Engine Coolant(Refer to GROUP O-Mainte-nance Service.)NllNA-C
130 25-30 Nmd/18-22 ft.lbs.
;:4.
s5:7.
::10.Ii.12.13.14.15.
Connection for air intake hose
Connection for vacuum hoseConnection for vacuum hoseConnection for air hose AHeat protector AHeat protector 6Power steering oil pumpOil pump bracketSelf-locking nut
Engine hangerEve bolt
16. Gasket17. Connection for water hose
19IBWI 18. Connection for water pipe B19. Self-locking nut20.
Gasket
05Ao15421.
Exhaust manifold22. Exhaust manifold gasket23.
Ring24. Gasket
NOTE(1) Reverse the removal procedures to reinstall.(2) +, : Refer to “Service Points of Removal”.(3) l * : Refer to “Service Points of Installation”(4) m : Non-reusable parts