1990 MITSUBISHI SPYDER ignition

ENGINE On-vehicle
A/C COMPRESSOR DRIVE BELT TENSION ADJUSTMENT
1. Loosen tension pulley fixing bolt A.
2. Adjust belt tension with adjusting bolt B.
Standard value:
Items
Tension
(Ibs.)
Deflection
When a new belt isWhen a used belt is
installedinstalled
382-411255-333
6.5-7.5
3. Tighten fixing nut A.
Tightening torque: 23-26 Nm
4.Check the belt deflection and readjust if neces-
sary.
Caution
This check should be carried out after turning the
crankshaft one full rotation or more in the forward
direction (to the right).
IGNITION TIMING CHECK
1.Before inspection and adjustment set vehicle in the follow-
ing condition.
lEngine coolant temperature:
lLights, electric cooling fan and all accessories: OFF
lTransaxle: Neutral (P range on vehicles with
2. Turn the ignition switch to OFF and connect the scan
tool to the data link connector.
3. Set up a timing light
4. Start the engine and run at idle.
5. Select No. 22 of the SCAN TOOL DATA LIST.
6.Check that engine idle speed is within the standard
Standard value: 750 100
7. Select No. 17 of the SCAN TOOL ACTUATOR TEST.
8. Check that basic ignition timing is within the standard
value.
Standard value: BTDC
9.If the basic ignition timing is outside the standar d value,
inspect the components by referring to GROUP
Troubleshooting.
10. Press the scan tool clear key (Select a forced driving
cancel mode) to release the ACTUATOR TEST.
NOTE
If the test is not
a forced driving will continue
for 27 minutes. Driving under this condition may damage
the engine.
11. Check that the actual ignition timing is at the standard
value.
Standard value: Approx. BTDC
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ENGINE On-vehicle Service
NOTE
1.Ignition timing is variable within about even under
operating.
2. And it is automatically further advanced by abou t
from BTDC at higher altitudes.
CURB IDLE SPEED CHECK
1. Before inspection and adjustment, set vehicles in the
following condition.
lEngine coolant temperature:
lLights, electric cooling fan and all accessories: OFF
lTransaxle: Neutral (P range on vehicles with
2. Turn the ignition switch to OFF and connect the scan
tool to the data link connector.
3. Select No. 17 of the SCAN TOOL ACTUATOR TEST.
4. Check the basic ignition timing.
Standard
BTDC
5. Run the engine at idle for 2 minutes.
6. Select No. 22 of the SCAN TOOL DATA LIST.
7. Check the curb idle speed.
Standard value: 750
100
NOTE
The idle speed is controlled automatically by the i dle air
control system.
8. If the idle speed is outside the standard value, inspect
the components by referring to GROUP Trou-
bleshooting.
IDLE MIXTURE CHECK .
1.Before inspection, set in following
lEngine coolant temperature:
lLights, electric cooling fan all
lTransaxle: Neutral (P range on
2. Turn the ignition switch to OFF and, connect the scan
tool to the data link ,
3. Select No. 17 of the SCAN TOOL
4.Check that the basic ignition
value.
Standard value: BTDC
5. Run the engine 2,500 for 2 minutes.
6. Set the CO, HC tester.
7. Check the CO contents and the HC contents, at id le.
Standard value: CO contents: 0.5% or less
HC contents: 100 rpm or less
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ENGINE On-vehicle
8. If the standard value is exceeded, check the following
items:
l Diagnostic output
l Closed-loop control (When the closed-loop control
is carried out normally, the output signal of the h eated
oxygen sensor repeats between and
,000 at idle.)
l Fuel pressure
I n j e c t o r
lIgnition coil, spark plug cable, spark plug
lEGR system and the EGR valve leak
l Evaporative emission control system
Compression pressure
NOTE
Replace the catalyst whenever the
HC contents do not remain inside the standard value .
(even though the result of the inspection is
all items.).
C O M P R E S S I O N
CHECK
1.Before inspection, check that the engine-oil, start er
battery are normal. Also, set the to the
condition:
lEngine coolant temperature:
lLights, electric cooling fan and all accessories: O FF
lTransaxle: Neutral (P range on vehicles with
2. Disconnect the spark plug cables.
3. Remove all of the spark plugs.
4.
5.
Disconnect the crankshaft position sensor connector .
NOTE
Doing this will prevent the engine control unit fro m carrying
out ignition and fuel injection.
Cover the spark plug hole with a shop towel etc., a nd
after the engine has been cranked, check that no fo reign
material is adhering to the shop towel.
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ENGINE Engine Assembly
4.9
29
8. Accelerator cable connection9. air control motor connector
10. Knock sensor connector 11. Heated oxygen sensor connector
12. Engine coolant temperature gauge
unit connector13. Engine coolant temperature sensorconnector
Engine oil
00005320
‘ c o i l c o n n e c t o r ’ 20. Camshaft position sensor connector
21. Crankshaft position sensor
connector22. Air conditioning compressor
connector23. Control wiring harness 24. Brake booster vacuum hose .
14. Ignition power transistor connector
15. Throttle position sensor connector
16. Capacitor connector 17. Manifold differential pressure sensor connector
18. Injector connectors connection
25. High-pressure fuel hose connection
26. Fuel return hose connection
27. Water hose A connection
28. Water hose
connection29. Vacuum hoses connection
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ENGINE Cylinder Head
CYLINDER HEAD GASKET
REMOVAL AND INSTALLATION
Pre-removal Operationl Fuel Line Inner Pressure Release(Refer to GROUP On-vehiclel Engine Coolant Draining(Refer to GROUP 00 Maintenance Service.)l Engine Oil Draining(Refer to GROUP 00 Maintenance Service.)
3.62.9 Nm
2.2
4.9 Nm
220 1
Removal steps
1. Accelerator cable connection(Refer to GROUP 17 On-vehicleService.)2. Air hose 3. Idle air control motor connector
4. Knock sensor connector
5. Heated oxygen sensor connector
6. Engine coolant temperature gauge
unit connector
7. Engine coolant temperature sensor
connector8. Ignition power transistor connector
9. Throttle position sensor connector
10. Capacitor connector
11. Manifold differential pressure sensor connector
12. Injector connectors
13. Ignition coil connector Engine oil
,
21
14. position sensor connector
15. Crankshaft sensor
16. Air conditioning compressor
c o n n e c t o r
17. Control wiring harness
18. Center cover
19. Spark
cable
20. Brake booster
21. High-pressure fuel hose connection 22. Fuel return hose connection
23. By-pass valve hose connection
24. Water hose connection25. Vacuum hoses connection26.Breather hose 27. PCV hose connection
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CONTENTS
BRACKET65
CRANKSHAFT, FLYWHEEL ANDDRIVE PLATE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
CYLINDER HEAD AND VALVES . . . . . . . . . . . 36
EXHAUST MANIFOLD AND
WATER PUMP. . . . . . . * . . . . . . . . . . . . . . . . . . . .29
FRONT CASE, COUNTERBALANCE
SHAFT AND OIL PAN . . . . . . . . . . . . . . . . . . . . . 42
FUEL AND EMISSION CONTROL
PARTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
GENERAL INFORMATION. . . . . . . . . . . . . . . . . .2
General Specifications . . . . . . . . . . . . . . . . . . , . . . . .2
GENERATOR IGNITION SYSTEM. . . . .11
INTAKE MANIFOLD. . . . . . . . . . . . . . . . . . . . . .
PISTON AND CONNECTING ROD..
. . . . . . . .51
ROCKER ARMS AND CAMSHAFT. . . . . . . .
SPECIAL TOOLS
. . . . . . . . . . . . . . . . . . . . . . . . . . .8
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . .3
Rework Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . .4
Sealant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . ..
Service Specifications. . . . . . . . . . . . . . . . . . . ....3
Torque Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . .5
TIMING BELT
. . . . . . . . . . . . . . . . . .. . . . . . . . .
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ENGINE OVERHAUL
TORQUE SPECIFICATIONS
, ,
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I I
I
I I
I
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Items
Generator and ignition system
W a t e r p u l l e y b o l tpump
Generator mounting bolt
Generator brace bolt
Generator pivot nut
Crankshaft pulley bolt
Spark plug
Ignition coil bolt
Center cover bolt Ignition power transistor bolt
Plate
Camshaft position sensor
Camshaft position sensor support
Camshaft position sensing cylinder
Timing belt
Crankshaft position sensor bolt
Tensioner pulley bolt
Tensioner arm bolt
Auto tensioner bolt Idler pulley bolt
Oil sprocket nutpump
Crankshaft bolt
Tensioner
bolt
Counterbalance shaft sprocket bolt
Camshaft sprocket bolt
Engine support bracket bolt
Fuel and emission parts
EGR valve bolt
Throttle body stay bolt
Throttle body bolt
Fuel pressure regulator bolt
Intake manifold
manifold bolt
ntake manifold nut ntake manifold stay bolt
ntake manifold plenum bolt and nut
ntake manifold plenum stay bolt
outlet fitting bolt
coolant temperature gauge unit
coolant temperature sensor
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N m
118”
23 17
2417
1410
25 18
25 18
1410
32
1410
107
97
14 10
2216
97
4935
22 16
24
‘17’
3827
5540
12087
1914
4633
9065
45 33
22 16
19 14
1914
97
2014
3626
2820
18
1813
1914
118
30 22

ENGINE OVERHAUL and 11
GENERATOR AND IGNITION SYSTEM
REMOVAL AND INSTALLATION
825 Nm 18
523Nm
24177
25Nm18
6
10 Nm7
Removal steps
1.Drive belt
2. Water pump pulley
3. Power steering pump pulley
4.Generator brace5.Generator6.Crankshaft pulley7.Center cover
8. Spark plug cable
9.Spark plug10. Ignition power transistor
11.Ignition coil12. Plate
13.Gasket 14. Camshaft position sensor 15. Camshaft position sensor
16. Camshaft position sensing cylinder
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