check engine MITSUBISHI SPYDER 1990 Service User Guide

GENERAL Maintenance Service
,
Revision
Drain Plug
13. TRANSFER OIL
(Check oil level)
Check each component for evidence of leakage, and-check
the oil level by removing the filler the oil is
it is necessary to replace it with new oil.
1.With the vehicle parked at a level place, remove filler,
2. Check that the transfer oil level is at the portion
of the filler plug hole.
3. Check to be sure that the transfer oil is not
dirty, and that it has a suitable viscosity.
(Change oil) 1. Remove transfer drain plug.
2. Drain oil.
3. Tighten drain plug to specified torque.
Specified torque: 32 Nm (24
4.Remove filler plug and fill with specified oil till the. level
comes to the lower portion of filler-plug hole.
Specified oil:
API classification SAE or
Quantity: 0.5 qt.)
5. Tighten filler plug to specified torque.
Specified torque: 32 Nm (24
14. ENGINE COOLANT (Change)
Check the cooling system parts, such asradiator, heater,
and oil cooler hoses, thermostat and connections fo r leakage
and damage.
CHANGING COOLANT
1.Drain the engine coolant by removing the drain plug and
then the cap.

GENERAL Maintenance
a
Engine (Non-turbo)>
in plug
Engine>
2.For non-turbo, remove the ‘drain plug from
block to drain engine coolant.
For turbo, remove the water hose from the water pip e
assembly (C) to do so.
3.
4.
5.Remove the reserve tank to drain the coolant.
When the engine coolant has drained, pour in water from
the cap to clean the engine coolant line.
For non-turbo, install the drain plug to the cylind er block.
For turbo, install the water hose to pipe assembly
6.
7.
8.
Securely tighten the radiator drain plug.
Install the reserve tank.
9.
Slowly pour the engine coolant into the mouth of th e
radiator until the radiator is full, and pour also into the
reserve tank up to the FULL line.
Recommended antifreeze:
LONG-LIFE COOLANT (Part No. 0103044)
or high quality ethylene-glycol antifreeze coolant)
Quantity 7.0
(7.4 qts.)
Install the cap securely.
Start the engine and warm the engine until the the rmostat
opens. (Touch the radiator hose with your hand to c heck
that warm water is flowing.)
11. After the thermostat opens, race the engine at 3,000
3 times.
12. After the engine is stopped, wait until the eng ine has
cooled down, and then remove the cap to check the
level of the liquid. If the level is low, repeat th e operation
from step 9.
Lastly, if the level does not drop, fill the conden se tank
with coolant up to the FULL line.
15. DISC BRAKE PADS (Check for wear)
Check for fluid contamination and wear. Replace com plete
set of pads if defective.
Caution
The pads for the right and left wheels should be re placed
at, the same time. Never “split” or intermix brake pad
sets.
All four pads must be replaced as a complete set.
Thickness of lining (A) Limit: 2.0 mm
in.)
16. REAR DRUM BRAKE LININGS
WHEEL CYLINDERS for and
l e a k s )
1.Remove the brake drum and check of brake
shoe lining for wear. Check the automatic brake adj usting
system by hand to see if it operates smoothly.
Also see if the gears are in proper mesh with each other.
To assure smooth operation, apply a thin coat of
multipurpose grease to the friction surface of adju ster
and link shaft.
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ENGINE
CONTENTS
CAMSHAFT AND CAMSHAFT OIL
SEAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
CRANKSHAFT FRONT OIL SEAL . . . . . . . 28
CRANKSHAFT PULLEY . . . . . . . . . . . . . . . . . 21
CRANKSHAFT REAR OIL SEAL. . . . . . . .29
Curb Speed Check. . . . . . . . . . . . . . . . . .10
Drive Belt Tension Check and
Adjustment . , . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Mixture Check . . . . . . . . . . . . . . . . . .
. . . . .10
Ignition Timing Check. . . . . . . . . . . .. . . . . . . . .
Lash Adjuster Check . . . . . . . . . . . . . . . .
CYLINDER HEAD GASKET . . . . . . . . . . . . .31
ENGINE ASSEMBLY. . . . . . . . . . . . . . . . . . . .16
GENERAL INFORMATION. . . . . . . . . . . . . . . .2
OIL PAN AND OIL SCREEN . . . . . . . . . . . .26
ON-VEHICLE SERVICE. . . . . . . . . . . . . . . . .7
Basic Idle Speed Adjustment
. . . . . . . . . . . . . . . . . . . . . . Refer to GROUP
Lash Adjuster Replacement. . . . . . . .. . . .15
Manifold Vacuum Check. . . . . . . . . . . . . . . ....13
SEALANTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE SPECIFICATIONS. . . . . . . . . . . . . .3
SPECIAL TOOLS. . . . . . . . . . . . . . . . . . . . . . . .4
BELT. . . . . . . . . . . . . . . . . . . . . . . . . . .36
TIMING BELT . . . . . . . . . . . . . . . . . . . . . . . .41
Compression Pressure Check . . . . . . . . . . . .
. . 11TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . 6

ENGINE Service Specifications
SERVICE SPECIFICATIONS
I
1
Items
Drive beltTensionWhen checked
(For generator) When a new belt is installed
When a used belt is installed
DeflectionWhenchecked
mm (in.)When a new belt is installed
value>When a used belt is installed
Drive belt Tension
When checked
(For power When a new belt is installed
steering pump) When a used belt is installed
DeflectionWhenchecked
mm (in.)When a new belt is installed
When a used belt is installed
Drive belt Tension
(Ibs.) When checked
[For A/C When a new belt is installed
When a used belt is installed
DeflectionWhenchecked
mm (in.)When a new belt is installed
When a used belt is installed
ignition timing at idle
ignition timing at idle
idle speed
contents
contents ppm
pressure (at 250 400 (psi)
pressure difference of all cylinder (psi)
ntake manifold vacuum
head bolt length mm (in.)
tensioner push rod movement mm (in.)
belt tension torque
tensioner rod protrusion mm (in.)
belt tension mm (in.)
Standard valueLimit
2 4 5 - 4 9 0 ( 5 5 . 1 1 1 0 . 2 )
490 886 (110.2 154.3)
‘9.0
7.5 9.0
10.0
.245 -490 (55.1 110.2)
490 154.3)
343
441 (77.2 99.2)
5.5
8.0
6.0 7.0
255 333 (57.3 75.0)
382 441, (86.0 99.2)
255 333 (57.3 75.0)
6 . 5 - 7 . 5
5.5 6.0
6.5 7.5
3”
Approx. BTDC
100
0.5 or less
100 or less
1250 (178)min. 935 (133)
max. 100
min. 60
99.4 (3.91)
Within
3 . 5 ( 2 . 6 )
3.8 4.5
5 7
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ENGINE,
TROUBLESHOOTING
Oil filter cloggedInstall new filter
Oil pump gears or cover wornReplace gears cover
Thin or diluted engine oil Change engine oil to correct viscosity
Oil relief valve stuck (open) Repair relief valve
Excessive bearing clearanceReplace bearings
pressure too high Oil relief valve stuck (closed) Repair relief valve
Joisy valves Incorrect lash adjuster Bleed air or rep lace lash adjuster
Thin or diluted engine oil (low oil pressure)
Change engine oil ,
Valve stem or valve guide worn or damaged Replace va lve guide
rod noise/Insufficient oil supplyCheck engine oil level
nain bearing noise Low oil pressure Refer
pressure drop”
Thin or diluted engine oil Change engine oil
Excessive bearing clearance Replace bearings
belt noiseIncorrect belt tension Adjust belt tension and/or replace tim-ing belt
engine Loose engine roll stopper (Front, Rear)Retighten
ng and vibration
Loose transaxle mount bracketRetighten
Loose engine mount bracketRetighten
Loose center memberRetighten
Broken transaxle mount insulatorReplace
Broken engine mount insulatorReplace
Broken roll stopper insulatorReplace
Symptom
Probable cause
Remedy.
Compression too low Cylinder head gasket blownReplace gasket
Piston ring worn or damagedReplace rings
Piston or cylinder worn
Repair or replace piston cylinder
block
Valve seat worn or damagedRepair or replace valve and/or
Oil pressure drop Engine oil level too low Check engine oil level
Oil pressure switch faulty
pressure switch
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ENGINE On-vehicle
98 (22
Generator
pulley
pulley
v
pulley
ON-VEHICLE
DRIVE BELT TENSION CHECK’ AND
ADJUSTMENT
GENERATOR DRIVE BELT
Use the belt tension gauge to check belt the shown
point or deflection by applying 98 (22 tbs.) to
shown point.
Standard value:
Tension: 245 490 (55.1 110.2
Deflection 9 . 0 1 1 . 5 m m i n . )
GENERATOR DRIVE BELT TENSION ADJUSTMENT
1. Loosen the nut of the generator pivot bolt.
2. Loosen the lock bolt.
3.Turn the adjusting bolt to adjust the belt tension or deflec-
tion to the standard value.
Standard value:
ItemsWhen a new belt is
installed
Whena used belt is
installed
Tension392
(88.2)I
Deflection10.0
mm (in.)
4Tighten the nut of the generator pivot bolt.
Tightening torque: 23 Nm (17
5. Tighten the lock bolt.
Tightening torque: 23 Nm (17
6. Tighten the adjusting bolt.Tightening torque: 10 Nm (7
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ENGINE On-vehicle Service
pump pulley
Cranksh
pulley
pulley
a
POWER STEERING PUMP DRIVE BELT TENSION”
11100110114
Use the belt tension gauge to check belt tension the shown
point or check deflection by applying to the
shown point.
Standard value:
Tension: 245 490 110.2 Ibs.)
Deflection: 5.5
8.0 mm in.)
.
POWER STEERING PUMP DRIVE BELT
ADJUSTMENT
1. Loosen power steering pump: bolt (A,
2.Move power steering tension belt moderately
adjust tension.
Standard value:
items
Tension
(tbs.)
Deflection
mm (in.)
When a new belt is When a used belt is installed
,,
3. Tighten fixing bolt (A).
Tightening torque: 28 Nm (21
4. Tighten the remaining fixing bolts and
Tightening torque:
Bolt and 28 Nm (21
Bolt 22 (18
5.Check the belt deflection amount and readjust if
saty.
Caution
This check should be carried out after turning the
crankshaft one full rotation or more in the forward
direction (to the right).
A/C COMPRESSOR DRIVE BELT TENSION CHECK
Use the belt tension gauge to check belt tension at the shown
(a) or (b), or check deflection by applying 98 (22
to the shown point.
Standard value:
Tension: 255 333 (57.3 75.0 tbs.)
Deflection: 6.5
7.5 mm in.)

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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