engine coolant MITSUBISHI SPYDER 1990 Service Owner's Guide

ENGINE O n - v e h i c l e
Press the scan tool clear key (select aforced 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.
Check that the actual ignition timing is at the st andard
value.
Standard value: Approx. BTDC
NOTE
Ignition timing is variable within about even under
normal operating.
2. And it is automatically further advanced by abou t
from BTDC at higher altitudes.
CURB IDLE SPEED CHECK
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 A/T)
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 value: 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, check
the components by referring to GROUP Trou-
bleshooting.
IDLE MIXTURE CHECK
Before inspection, set vehicles in the following co ndition:
lEngine coolant temperature:
lLights, electric cooling fan and all accessories: O FF
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 that the basic ignition timing is within the standard
value..
Standard value:
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On-vehicle
Run the engine.
8. Set CO, HC tester.
7. Check the CO contents and the HC contents at idle.
Standard value:
CO contents: 0.5% or less
HC contents: 100 ppm or less
8. 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 heated
oxygen sensor and
at idle.)
l
Injector
lIgnition coil, spark plug
l system the
l Evaporative emission
Compression ,
NOTE,
Replace the three-way CO and
HC contents do not
the value.
(even though the
of the” on
all items.)
PRESSURE CHECK
1.Before inspection, check that the engine oil, start er and
battery are normal. Also, set the vehicle to the fo llowing
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. Disconnect the crankshaft position sensor
NOTE
Doing this will prevent the engine control unit fro m carrying
out ignition and fuel injection.
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ENGINEOn-vehicle
5. Cover the spark plug hole with a shop towel etc., and
after the engine has been cranked, check that no foreign
material is adhering to the shop towel.
Caution
1.Keep away from the spark plug hole when crank-
ing.
2. If compression is measured with water, fuel,
etc., that has come from cracks inside the
these materials will become heated and gush
out from the spark plug hole, which is dangerous.
6.Set compression gauge to one of the spark plug hole s.
7. Crank the engine with the throttle valve fully open and
measure the compression pressure.
Standard (at engine speed of
1,350 (192 psi)
Limit (at engine speed of
Min. 1,020 (145 psi)
8.Measure the compression pressure for all the cylind ers,
and check that the pressure differences of the cyli nders
are below the limit.
Limit: Max. 100 (14 psi)
9. there is a cylinder with compression or a compression
difference that is outside the limit, pour a small amount
of engine oil through the spark plug hole, and repe at
the operations in steps 7 and 8.
(1) If the compression increases after oil is added , the
cause of the malfunction is a worn or damaged pisto n
ring and/or cylinder inner surface.
(2) If the compression does not rise after oil is added,
the cause is a burnt or defective valve seat, or pr essure
is leaking from the gasket.
10. Connect the crankshaft position sensor connecto r.
11. Install the spark plugs and spark plug cables.
12. Use the scan tool to erase the diagnostic troub le codes,
or disconnect the negative battery cable than
10 seconds and reconnect it.
NOTE
This will erase the diagnostic trouble code resulting from
the crankshaft position sensor connector
MANIFOLD VACUUM CHECK
1.Before inspection, set vehicles in the following co ndition:
lEn
lLig electric cooling fan, and accessories: OFF
ine coolant temperature:
lTransaxle: Neutral (P range on vehicles with
2. Set up the tachometer or connect the scan tool t o the
data link connector.
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Engine Assembly11
ENGINE ASSEMBLY
REMOVAL AND INSTALLATION
Pm-removal Operationl Fuel Line Pressure Releasing(Refer to GROUP On-vehicle Service.)l Hood Removall Engine Coolant Draining(Refer to GROUP 00 Maintenance l Transaxle Assembly Removal Refer to GROUP Assembly.) Refer to GROUP Transaxle Assembly.)lRadiator Removal (Refer to GROUP 14 -Radiator.)l Under Cover Removal(Refer to GROUP 42 Under Cover.)
1
22Nm16
6
28Nm
Post-installation Operationl Radiator Installation(Refer to GROUP 14 Radiator.)l Transaxle Assembly Installation Refer to GROUP Transaxle Assembly.) Refer to GROUP -Transaxle Assembly.)l Engine Coolant Supplying(Refer to GROUP 00 Maintenance Service.)l Hood Installationl Accelerator Cable Adjustment (Refer to GROUP 17 On-vehicle Service.)l Under Cover Installation(Refer to GROUP 42 Under Cover.)l Drive Belt Tension Adjustment 28Nm21
21 Nm
Removal steps
1. Power steering pressure switch
connector
2. Generator connectors
3. Oil pressure switch connector
4. Oil pressure gauge unit connector
5 . G e n e r a t o r(Refer GROUP 16 Generator.)
6. Power
pump Connection
7. A/C compressor connection
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.
4 . 9 N m
\ / X L - -3.6
. .
8. Accelerator cable connection9. air control motor connector
10. Heated oxygen sensor connector
11. Engine coolant temperature gauge
unit connector
12. Engine coolant temperature sensorconnector13. Ignition power transistor connector
14. Throttle position sensor connector
Capacitor connector16. Manifold differential pressure
20. Crankshaft position sensor
connector21. Air conditioning compressor
connector22. Evaporative emission purge sole-
noid valve
23. Control wiring harness
24. Brake booster vacuum hose
connection High-pressure fuel connection
26. Fuel return hose connection --
. .. .
17.18.
sensor connector
Injector connectors
Ignition coil connector
19. Camshaft position sensor connector 27.
water nose A 28. Water hose connection29. Vacuum hoses connection
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ENGINE OVERHAUL intake Manifold
sealant
3 mm
bead sealant
INSTALLATION SERVICE ,
S E A L A N T TO
HOUSING
Specified sealant:Mitsubishi Genuine Part No.
or equivalent
NOTE
(1) Be sure to install the housing quickly while sealant
is wet (within 15 minutes).
(2) After installation, keep the sealed area away f rom the
oil and coolant for approx. one hour.
SEALANT APPLICATION TO WATER
FITTING
S p e c i f i e d s e a l a n t :
Mitsubishi Genuine Part No.’ or equivalent
NOTE
(1) Be sure to install the housing quickly while th e sealant
is wet (within 15 minutes).
(2) After installation, keep the sealed area away f rom the
oil and coolant for approx. one hour.
SEALANT APPLICATION COOLANT
T E M P E R A T U R E S E N S O R
Specified sealant:
Nut Locking Part No. or equivalent
SEALANT APPLICATION TO ENGINE COOLANT TEMPERATURE GAUGE UNIT
Specified sealant:
ATD Part No. 8680 or equivalent
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ENGINE OVERHAUL Shaft and Can
Case,
62
Crank pulley side
0
mm bolts
0
Oil pan viewed from lower side
(2) Secure the oil pump driven gear onto the left counterbal-
ance shaft by tightening the flange bolt to specified torque.
PLUG INSTALLATION
(1) Install a new O-ring to the of front case.
(2)Using the special tool, plug and tighten to speci-
fied torque.
OIL PAN INSTALLATION
(1) Clean both mating surfaces of oil pan and cylin der block.
(2) Apply a 4 mm in.) wide bead of sealant to the entire
circumference of the oil pan flange.
Specified sealant:
MITSUBISHI GENUINE PART No. or
equivalent
NOTE
(1) Be sure to install the oil pan quickly while th e sealant
is wet (within 15 minutes).
(2) After installation, keep the sealed area awayfrom
the oil and coolant for approx.
hour.
(3) Note the difference in bolt lengths at the loca tion shown.
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ENGINE O V E R H A U L Crankshaft. Drive
APPLICATION TO OIL SEAL
Specified sealant:
Mitsubishi Genuine Part No. or equivalent
(1) Be sure to install the case quickly while the s ealant
wet (within 15 minutes).
(2) After installation, keep the sealed area
from the
oil and coolant for approx. one hour.
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ENGINE LUBRICATION Service
DraingasketOil pan side
Engine (Non-turbo)>
If these oils are not available, an API classificat
ion
or can be used.’ . .
ON-VEHICLE
ENGINE OIL
.
Pull out the oil dipstick slowly and check that the oil
is within the marks on the oil dipstick.
2.Check that the oil is dirty, that there is
no coolant or gasoline mixed in, ‘and that it has, sufficient
viscosity.
ENGINE OIL REPLACEMENT
After warming up the engine, remove the oil filler cap.
2.Remove the drain plug to allow the engine oil to drain.
3.Replace the drain plug gasket with a new one and ti ghten
the drain plug.

ENGINE LUBRICATION Oil Cooler
ENGINE OIL COOLER 12100130117
REMOVAL AND INSTALLATION
Operationl Engine Coolant Draining(Refer to GROUP 00 Maintenance
Engine oil
Engine Oil Checking and Supplying
2
Removal steps
1. Oil filter
2. Water hose connection
3. Oil cooler bolt
4. Engine oil cooler
Oil filter bracket
Stopper
Engine oil cooler
INSTALLATION SERVICE POINT
ENGINE OIL COOLER INSTALLATION
the stopper into the groove of the oil filter bracket,
and then tighten the oil cooler bolt.
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