belt MITSUBISHI SPYDER 1990 Service Service Manual

11
Crankshaft,
ENGINE OVERHAUL Drive Plate .
Timing belt side
Cylinder block bearing
bore identification mark
R E M O V A L POINT
JET
Use an appropriate metal bar to press the out.
(1) Be careful not to damage the cylinder
(2) Never reuse the removed oil
INSTALLATION SERVICE POINTS
JET INSTALLATION
Use a pin punch of 4
5 mm in.) diameter to
press the oil jet in from the crank journal until t he oil jet bottoms
on.
CRANKSHAFT BEARING
When the bearing needs replacing, select and instal l a proper
bearing by the following procedure.
(1) Measure the crankshaft journal diameter and confirm its
classification from the following table. In the cas e of
a crankshaft supplied as a service part, identification colors
of its journals are painted at the positions shown in the
illustration.
(2) The cylinder block bearing bore diameter identi fication
marks are stamped at the position shown in the illustration
from the front of engine, beginning at 1.
Crankshaft journalblock bore
diameter Crankshaft
bearing
tion mark(for
production
Outer
color diameter mm(in.)(for service
marktion
1None
Yellow1
2
23
2None
None02(2.2436-2.2439)
1
24
3NoneWhite3
1’4
5
(3)Select a proper bearing from the above, table on th
e basis
of the identification data confirmed under (1) and
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E N G I N E O V E R H A U L
ed
(for No. tion mark
Upper and lower (for No.3)
Identification
mark
1
Shank length
[Example]
(1) If the measured value of a crankshaft
diameter is between 56.994 mm (2.2439
2.2441 in.), the journal is in the’
case the is also replaced by a
spare part, check the identification colors of the
journals painted on the
crankshaft. If the color’
is yellow, for example,.
journal is classified as
(2)
check the cylinder block bearing hole
mark stamped on the cylinder block.
If it is “O”, read the “Bearing identification column
to find the identification mark of the bearing to b e
used. In this case, it is “1”.
(4)
the bearings oil groove to the cylinder
block.
(5) Install the bearings having no oil to the bearing
caps.
CAP B E A R I N G C A P B O L T
INSTALLATION
(1) Install the bearing caps so that their arrows directed
to the timing belt side.
(2) Before installing the bearing cap bolts, check that the
shank length of each bolt meets the limit.
limit
is exceeded, replace the bolt.
(A): Max. 71.1 mm (2.79 in.)
(3) Apply engine oil to the threaded portion and be aring sur-
face of the bolt.
(4) Tighten the bolts to 25 Nm (16
in the specified
tightening sequence.
(5) Make a paint mark on the head of each bolt.
(6) Make a paint mark on the bearing cap at the pos ition
to from the paint mark made on the bolt in
the direction of tightening the bolt.
(7) According to the specified tightening sequence, give a
to turn to each bolt and make sure that the
paint mark on the bolt and that on the cap are in a lignment.
Caution
(1) If
thebolt is turned less than proper
performance may not be expected.
tightening the bolt, therefore, be careful to
a sufficient turn to it.
( 2 ) I f t h e b o l t i s
loosen the bolt completely and then retlghten
by repeating the tightening procedure from step
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CONTENTS
CAMSHAFT AND CAMSHAFT OIL
SEAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
CRANKSHAFT FRONT OIL SEAL. . . . . . . . . .25
CRANKSHAFT PULLEY. . . . . . . . . . . . . . . . . . .19
CRANKSHAFT REAR OIL SEAL
. . . . . . . . . .
CYLINDER HEAD GASKET. . . . . . . . . . . . . . . .29
ENGINE ASSEMBLY. . . . . . . . . . . . . . . . . . . . . .14
GENERAL INFORMATION. . . . . . . . . . . . . . . . . .2
OIL PAN AND OIL SCREEN . . . . . . . . . . . . . . .24
ON-VEHICLE SERVICE
. . . . . . . . . . . . . . . . . . . . .8
Basic idle Speed Adjustment. . . . . . . . . . . . . . . . . . . . . Refer to GROUP
Compression Pressure Check. . . . . . . . . ..
Curb Speed Check . . . . . . . . . ...
Drive Tension
Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mixture Check . . . . . . . . . . . . . . . . .. . . . . . ..
Ignition Timing Check. . . . . . . . .....................
Lash Adjuster Check . . . . . . . . . . . . . . . . .
......
. . . . .
Manifold Check . . . . . . . . . . . . .13
SEALANTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
SERVICE SPECIFICATIONS. . . . . . . . . . . . . . . . .3
SPECIAL TOOLS. . . . . . . . . . . . . . . . . . . . . . . . . . .4
TIMING BELT. . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . .
7

ENGINE ‘Service
SERVICE SPECIFICATIONS
Items
Drive belt
(For
generator)
Standard value Limit
TensionWhen checked
(Ibs.) When a new belt is installed
When a used belt is installed
110)
DeflectionWhenchecked9.0
mm (in.)When a new belt is installed 7.5 10.5
value> 9.0 12.0
Drive beltTensionWhenchecked
(For power
When a new belt is installed
steering oil
When a used belt is installed
without
mm (in.)When a new belt is installed
When a used belt is installed
Drive belt
TensionWhenchecked
(For power
When a new belt is installedsteering oil
and A/C When a used belt is installed
DeflectionWhenchecked
mm (in.)When a new belt is installed
When a used belt is installed
Curb idle speed
mixtureCO contents
HC contents ppm
pressure (at 250 400 (psi)
pressure difference of all cylinder
ntake manifold vacuum
110)
110)
6.5 9.5
1 1 4 . 6 )
608 706 (136.7
412 510 (92.8 114.6)
8.0 9.0
100
0.5 or less
100 or less
1 , 5 5 1
max. 25%
min. 60 (18)
SEALANTS
Items
Semi-circular packing
Oil pan gasket to
Oil pump to
Outside camshaft bearing cap Specified sealant
Loctite 5699 or equivalent
Loctite 518 or equivalent
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ENGINE Troubleshooting,
TROUBLESHOOTING
Symptom Probable causeRemedy
Compression too low Cylinder head gasket blown Replace gasket
Piston ring worn or damaged Replace rings
Piston or cylinder worn Repair or replace piston
cylinder
block
Valve seat worn or damaged Repair or replace valve seat ring
Oil pressure drop Engine oil level too low Check engi ne oil level
Oil pressure switch faulty Replace oil pressure switch
Oil filter clogged
Install new filter
Oil pump gears or cover
Replace gears and/or cover
Thin or diluted engine oil Change engine correct
Oil relief valve stuck (open) Repair relief valve
Excessive bearing clearance Replace bearings
pressure too highOil relief valve stuck (closed) Repair relief valve
valves Incorrect lash adjuster Bleed air or replace 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/lnsuff 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 replace-timing
belt
engine rolling Loose engine roll stopper (Front, Re
ar)Retighten
vibration
Loose transaxle mount bracket Retighten
Loose engine mount bracket Retighten
Loose center member Retighten
Broken transaxle mount insulator
Replace
Broken engine mount insulatorReplace
Broken roll stopper insulatorReplace
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Crankshaft
B E L T
ADJUSTMENT
Check the belt tension with the tension gauge, or check the
belt deflection by pressing the middle point of the belt by
a force of 98
(22 ibs.).
Standard value: Tension: 400
490 (90 110
Deflection 9.0 12.0 mm
GENERATOR BELT
1. Remove the under cover side panel (R.H.).
2. Loosen the generator pivot nut.
3. Loosen the lock nut.
4. Turn the adjusting screw to adjust
belt tension or
deflection to the standard
NOTE
When installing a new belt, apply 310
(70 ibs.) of tension’
for 5 minutes or more, and then apply the final ten sion.
Standard value:. . . .
items
Tension
(Ibs.)
When a new is
installed
When a belt is
Deflection
mm (in.)
value>
5. Tighten the generator pivot nut.
Tightening torque: 54 Nm
6. Tighten the lock nut.Tightening torque: 61 Nm (45
7. Install the under cover side panel (R.H.).
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ENGINE On-vehicle
Power
Powersteering oilpump pulleyTension
pulley
POWER STEERING OIL PUMP DRIVE BELT
CHECK Use the belt tension gauge to check belt tension at the shown
point or check deflection by applying 98 (22 to the
shown point.
Standard value:
Tension: 400
(90 110
Deflection: 11 14.0 mm in.)
POWER STEERING OIL PUMP DRIVE BELT TENSION
ADJUSTMENT 1. Loosen power steering oil pump fixing bolt (A, C).
2. Move power steering oil pump, tension belt moder ately
and adjust tension.
Standard value:
When a new belt is when a used belt is
installedinstalled
Tension489-712
I
Deflection6.5-9.5
mm (in.)I
Tighten the fixing bolt (A).
Tightening torque: 39 Nm (29
4. Tighten the remaining fixing bolts and C).
Tightening torque: 39 Nm (29
5.Check the belt deflection mount and readjust if nec essary.
Caution
Turn the crankshaft one full rotation or more clock wise
before this check.
POWER STEERING OIL PUMP AND A/C COMPRESSOR
DRIVE BELT TENSION CHECK
Use the belt tension gauge to check belt tension at the shown
point or check deflection by applying 98
(22 Ibs.) to the
point.
Standard value:
Tension: 412 510 (92.6 114.6 Ibs.)
Deflection: 10.0
11.0 mm in.)
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ENGINE On-vehicle Service
POWER STEERING OIL PUMP AND A/C
DRIVE BELT TENSION ADJUSTMENTTensionpulley nut1. Loosen the tension pulley nut.
Tension pulley2.. Adjust the belt deflection amount using the adj usting bolt.
Standard value:
Adjusting boltItems
Tension
(Ibs.)
Deflection
mm (in.) When a new belt is When a used belt is
installed
installed(136.7-158.7).( 9 2 . 6 - 1 1 4 . 6 )
3. Tighten the tension pulley nut.
Caution
Fix the power steering oil pump position
to the vehicle front.
IGNITION TIMING CHECK11100170044
It is not necessary to check ignition timing using a timing
light, because the crankshaft position is detected directly and
ignition timing is controlled electronically.
CURB IDLE SPEED CHECK
1. Before inspection and adjustment set vehicles in the
following condition.
lEngine coolant temperature:
lLight, electric cooling fan and all accessories: OF F
l Transaxle: Neutral (P range on vehicles with
2. Connect the scan tool to the data link connector .
3. Start the engine and run it at idle.
4. Run the engine at idle for 2 minutes.
5. Check the curb idle speed.
Standard value: 800
100
NOTE
The idle speed is controlled automatically by the i dle air
c o n t r o l s y s t e m . If the idle speed is outside the standard value, in spect
the
components by referring to GROUP
Troubleshooting.
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ENGINE Engine
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 Service.)l Transaxle Assembly Removal Refer to GROUP Transaxle Assembly.) Refer to GROUP Transaxle Assembly.)lRadiator Removal (Refer to GROUP 14 Radiator.)l Under Cover Removal(Refer to GROUP 42 Under Cover.)
39 Nm29
39 Nm29
Post-installation Operationl Radiator Installation (Refer to GROUP 14 Radiator.)l Transaxle Assembly Installation Refer to GROUP Transaxle Assembly.) Refer to GROUP Assembly.)l Engine Coolant Supplying
(Refer to GROUP 00 Maintenance Service.)l Hood Installationl Accelerator Cable Adjustment(Refer to GROUP 17 On-vehicle l Under Cover Installation
(Refer to GROUP 42 Under-Cover.)l Drive Belt Tension Adjustment 9
Removal steps
1. compressor connector
2. Power steering pressure switch
connector3. Heated oxygen sensor connector
4. Engine coolant temperature gauge
unit connector
6. MAP sensor connector
7. Intake air temperature sensor
connector8. Power steering pump connection
9. A/C compressor connection
5. Engine coolant temperature sensor
connector
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ENGINE Crankshaft
CRANKSHAFT PULLEY
REMOVAL AND INSTALLATION
Operationl Under Cover Removal(Refer to GROUP 42 Under Cover.)
Post-installationl D r i v e B e l t T e n s i o n l U n d e r C o v e r I n s t a l l a t i o n (Refer to GROUP 42 Under Cover.),
Removal steps
1. Drive belt (Power steering and
2. Drive belt (Generator)
3. Crankshaft bolt 4. Crankshaft pulley
REMOVAL SERVICE POINTS
CRANKSHAFT BOLT REMOVAL