air condition MITSUBISHI ECLIPSE 1991 Owner's Guide

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
<Non-Turbo>30-40 Nm
22-29 ftlbs.
.--
OlAO561
1 <Turbo>
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.

ENGINE <2.0L DOHC Engine> - Timing Belt
TIMING BELT
REMOVAL AND INSTALLATION
I
Pre-removal Operation*Removal of Under Cover
I
50-65 Nm36-47 ft.lbs.
50-65“Nm36-47 ft:lbs.30-60-80
Nm22-20-3\0
Nm14-22 ftlbs.
lo-i2 Nm7-9 ftlbs.
Removal steps
1. Clamp for pressure hose (power steering)2. Bracket
3. Engine mount bracket
4. Clamp of return pipe (power steering)
5. Drive belt (alternator)6. Drive belt (power steering)
7. Tensioner pulley bracket
8. Drive belt (air conditioner)9. Water pump pulley
10. Water pump pulley (power steering)11. Crankshaft pulley12. Timing belt front upper cover13. Timing belt front lower cover
14. Center cover
15. Breather hose16. PCV hose
17. Connection for spark plug cables
l *
4*
NOTE4+ : Refer to “Service Points of Installation”.
WA0581
18.Rocker cover19.Semi-circular packing
20.Plug rubber2 1.Auto tensioner
22.Timing belt
23.Tensioner pulley
24.Tensioner arm
25.Idle oullev26. Camshaft sprocket
27. Oil pump sprocket
28. Crankshaft sprocket bolt
29. Special wastier
30. Crankshaft sprocket
31. Flange32. Tensioner
“B”33. Timing belt “B”
34. Silent shaft sprocket
35. Spacer36. Crankshaft sprocket “B”
37. Left engine support bracket
38. Timing belt rear right cover
39. Timing belt rear left cover (upper)
40. Timing belt rear left cover (lower)

9-96ENGINE <2.0L DOHC Engine> - Timing Belt
116
/18
Iv- IL 1’11117-9 ftlbs.
\43-49
Nm-_---. . .
30-42 Nm$0
22-30 ftlbs.
\
j2 \ 36
33
15-22 Nm
11-16 ftlbs.
I20-27 Nm\h \
14-20 f&.lbs.110-130 Nm cI,60-94 f
\z/OIAOS83-ama .I~..su--Du Nrnt Ibs .,iJ 36-43 ft.lbs.. .
Installation steps
40. Timing belt rear left cover (lower)
39. Timing belt rear left cover (upper)
38. Timing belt rear right cover37. Left engine support bracket
I)+ 36. Crankshaft sprocket “B”
l + 35. Spacer34. Silent shaft sprocket
l + 33. Timing belt “B”
l 4Adjustment of timing belt “B” tension
32. Tensioner “B”
l + 31. Flange++ 30. Crankshaft sprocket
29. Special washer
28. Crankshaft sprocket bolt
l + 27. Oil pump sprocketl + 26. Camshaft sprocket25. Idle pulley
e+ 21. Auto tensioner24. Tensioner arml 23. Tensioner pulleyl + 22. Timing belt
l 4Adjustment of timing belt tension20. Plug rubberl + 19. Semi-circular packingl 4 18. Rocker cover
17. Connection for spark plug cables16. PCV hose15. Breather hose14. Center cover
l + 13. Timing belt front lower covere+ 12. Timing belt front upper cover11. Crankshaft pulley10. Water pump pulley (power steering)
9. Water pump pulley
l +8. Drive belt (air conditioner)7. Tensioner pulley bracketI)+ 6. Drive belt (power steering)l +5. Drive belt (alternator)
4. Return pipe clamp bolt (power steering)3. Engine mount bracket
2. Bracket
1. Clamp for pressure hose (power steering)
NOTE+4 : Refer to “Service Points of Installation”.

9-l 08ENGINE <2.0L DOHC Engine> - Timing Belt
.hread diameter
\: 6 x 16(24 x .63)OlAOO45I: 6 x 18 (.24x .70)‘. 6 x 25 (.24 x .98);. 6x28 (.24~1.10) mm (in,)13. INSTALLATION OF TIMING BELT LOWER COVER/
12. TIMING BELT UPPER COVER
F-sThe dimensions of the installation bolts for the timing
covers differ according to the installation location, so be
sure not to install the bolts in the incorrect locations.
8. TENSION ADJUSTMENT OF THE AIR CONDITIONER
COMPRESSOR DRIVE BELT
Refer to GROUP
24-Service Adjustment Procedures.
6. DEFLECTION ADJUSTMENT OF POWER
STEERING OIL .++PUMP DRIVE BELT
Refer to GROUP 1
g-Service Adjustment Procedures.
5.TENSION ADJUSTMENT OF THE ALTERNATOR DRIVE
BELTRefer to GROUP
7-Maintenance Service.

INTAKE AND EXHAUST - Service Adjustment ProceduresII-7
w05A0155
h61
NO06061
NO0616 I
NO056(6) With the vacuum hose (black) closed when idling, apply
negative pressure and inspect the condition of the negative
pressure.
Engine stateDetonation sensor
connectorNormal state
,
ConnectionNegative pressureleaks.
Idling
DisconnectionNegative pressure
is maintained.
NOTEIf negative pressure is not normal, it can be assumed that there is amalfunction in the knock sensor circuit.(7) Turn off the ignition switch, and connect the connector of
the detonation sensor.
(8)Disconnect the (-) terminal of the battery for 10 seconds or
more.
NOTE
This erases the diagnosis memory of the detonation sensortrouble by disconnecting the detonation sensor connector.
SUPERCHARGING PRESSURE RELIEF SOLENOID
VALVE INSPECTIONNllGGAA
(1) Operation check
Using a hand
vaccum pump, apply a negative pressure to
the solenoid valve nipple on which the white vacuum hose
is connected, and check air-tightness when the voltage is
applied to the solenoid valve terminal and when it i‘s releasedfrom the terminal.
I
Other nipple ofBattery voile solenoid valveNormal state
OpenedNegative pressureleaks.IWhen applied
Closed by fingerNegative pressure
is maintained.
IWhen released OpenedNegative pressure
is maintained.
I
(2) Continuity check of coil
Measure the solenoid valve terminal resistance.Standard value: 36-44
fl [at 20°C (68OF)l
AIR BYPASS VALVE INSPECTIONNllGHAA
(1) Remove the air bypass valve.
(2) Connect the hand vacuum pump to the nipple of the air
bypass valve.
(3) Apply a negative pressure of approx. 53.3 kPa (7.7 psi), andcheck operation of the valve. Also check that air tightness
is maintained.
Negative pressure
About 53.3 kPa (7.7 psi)
Valve operation
It starts opening.

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

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<Vehicles with air conditioner>
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.

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<Vehicles with air conditioner >Oxygen sensor connectorEngine oil level gauge guideO-ring
\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