1989 MITSUBISHI GALANT lock

II-8ENGINE - Service Adjustment Procedures
8 VALVE
W Tlmlng belt side
il6
16
727
(3) If any abnormal noise IS not eliminated by racing, check the
lash adjuster.
@ Stop the engine.
@ Set the engine so that cylinder No. 1 is positioned at
the top dead centre of the compression.
@ Press the rocker arm at the area indicated by the+ arrow mark to check whether the rocker arm is lowered
or not.
@ Slowly turn the crankshaft 360 degrees clockwise.
@ In the same procedure as Step 0, check the rocker
arm at the area indicated by the
0 arrow mark.
@ If the rocker arm lowers easily when the part directly
above the rocker arm lash adjuster is pressed, the lash
adjuster is defective and must be replaced. When re-
placing the lash adjuster, bleed the air from all adjus-
ters and then assemble them. Then inspect with proce-
dures
@ to 0, and confirm that there are no abnormal-
ities
NOTE
lThe lash adjuster can be accurately checked for de-
fects with the leak down test.
l Refer to the engine service manual for the leak down test and lash adjuster air bleeding procedure.
If the rocker arm is extremely hard when pressed
down, the lash adjuster is normal, so look for a different
cause of abnormal sound.
COMPRESSION PRESSURE CHECK
MllFFAL
(1) Before inspection, verify that the engine oil, starter motor and battery are normal. Then, perform the following.
l Engine coolant temperature:
80- 95°C
(176- 203°F)
l Lights, electric cooling fan and accessories: OFF
l Transaxle:
P range
0 Steering wheel: Neutral position
(2) Disconnect the spark plug cable.
(3) Remove all the spark plugs
(4) Disconnect the connector of the distributor.
NOTE
This will prevent the engine control module from controll- ing the ignition and fuel injection.
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II-IOENGINE - Service Adjustment Procedures
(3) Remove the PCV hose from the PCV valve and attach a
vacuum gauge.
(4) Check that the negative pressure at the intake manifold
during idle revolution is normal.
Standard value:
(8 VALVE>Approx. 500 mmHg (20 in.Hg)
<16VALVE>Approx. 510 mmHg (20 in.Hg)
(5) If outside the standard value, isolate the cause by referring
to the following table and repair the fault.
Symptom
CauseRemed
y
l The vacuum gauge reading is less than l Ignition timing is retarded.l Adjust the ignition timing.
standard value, but the pointer is
stable.
l The vacuum gauge pointer swings l The gas mixture is excessivelyl Check
Multiport Fuel Injection
slowly.rich.system.
l The vacuum gauge pointer drops irre-
l The gas mixture is excessively
l Check
Multiport Fuel Injectiongularly.lean.system.
l The vacuum gauge pointer drops inter-
0 Incomplete close contact of in-0 Check and repair the valve.mittently to 30 to 160
mmHg
(1.2 to take and exhaust valve seats.
6.3 in.Hg).
l The vacuum gauge pointer drops sud-l Broken cylinder head gasketl ,Replace cylinder head gasket. denly
from the normal reading to 250 mmHg
(9.8 in.Hg). then returns to
normal.
/ OlR0175
condition.
Timina mark
‘timing mark._*-
Camshaft sprocket TIMING BELT TENSION ADJUSTMENT
(8 VALVE>MllFGCEa
There are 2 access holes in the timing belt front lower cover.
These can be used to readjust the tension of the timing belt by
the following procedure without removing the timing belt front lower cover. However, timing belt “B”, which drives the right
silent shaft, cannot be adjusted unless the cover is removed. (1) Turn the steering wheel all the way to the left.
(2) Remove the left side undercover panel.
NOTE
This work is done so that the crankshaft can be turned.
(3) Place a piece of wood against the engine oil pan and jac
k
up.(4) Remove the engine mounting bracket.
(5) Remove the timging belt front upper cover.
(6) Remove the four spark plugs.
(7) Turn the crankshaft clockwise and check the timing belt
(8) Turn the crankshaft clockwise and align the timing marks.
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ENGINE - Servioe Adjustment ProceduresII-II
Access
cover
,-
(0 a0
<
0 0
0 0
0
101 II0221
Access cover
Screwdriver slot
3EN075
(9) Remove the air conditioning drive belt and the generator drive belt.
(10)Removle the access covers. There are easily removed by
inserting a screwdriver into the slots indicated by the raised
arrows in the timing belt cover and twisting. (1l)lnset-t
the special tool (MD998051-01)
from the pivot side
access hole and loosen the tension spacer (with a tensioner lock nut on it) 1 to 2 turn.
Next insert a 14 mm socket wrench from the slot side
access hole and loosen the tensioner lock bolt 1 to 2 turn.
(12)Turn the crankshaft clockwise by two teeth of the camshaft
sprocket.
(13)First ticjhten the timing belt tensioner installation bolt (on
the
lo&er side), and then tighten the tensioner spacer
(upper side).
Caution
Be sure to tighten the bolt (lower side) first. lf the
tensioner spacer of pivot side is tightened first, the
tensioner will rotate with it and belt tension may
becorn; loose.
(14)lnstall the access cover. The access cover may be easily
installeNd by passing the hooks between the guides and
sliding it in.
(15)lnstall the air conditioning drive belt and generator drive
belt and adjust the slack. (Refer to P.l
l-l 2.)
(16)lnstall the timing belt front upper cover.
(17)lnstall the engine mounting bracket.
(18)lnstall the spark plugs.
(19)lnstall the left side undercover panel.
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ENGINE - Service Adjustment ProceduresII-13
TENSION ADJUSTMENT OF THE GENERATOR DRIVE
BELT
Pwot
nut
,,,\
\ // \ 01u0090
Belt tension 01A0060
-
W

ater
OiA0059
Caution
1. Before checking, turn the engine one time or more.
2.If the belt tension is too strong, it is possible that the
generator or water pump bearing is damaged.
If the b’elt tension is too weak, however, sounds of its
slipping will be heard, and the belt’s service life will be
reduced.
1.Loosen the generator pivot nut.
2. Loosen the lock bolt of the belt tension adjuster.
3. Using the adjustment bolt, adjust the belt tension to
specified.
4. Tighten the lock bolt.
5.Tighten the generator pivot nut.
6.Check the deflection or the tension of the belt; readjust if
necessary.
NOTE
Even for a new belt, the adjustment value for a used belt
should be used to make the adjustment if the belt has been
used for as long as five minutes or more.
DEFLECTION ADJUSTMENT OF POWER STEERING OIL
PUMP DRIVE BELT
1. Loosen power steering oil pump fixing bolt.
2. Move power steering pump, tension belt moderately and adjust deflection.
3. Tighten fixing bolts.
4. Run the engine one time or more.
5. Check the belt deflection. Readjust, if necessary.
TENSION ADJUSTMENT OF THE AIR CONDITIONING
COMPRESSOR DRIVE BELT
1. Loosen tension pulley fixing bolt A.
2. Adjust belt deflection with adjusting bolt B.
3. Tighten fixing bolt A.
4. Run the engine one time or more. 5. Check the belt tension. Readjust, if necessary.
NOTE
Even for a new belt, the adjustment value for a used belt
should be used to make the adjustment if the belt has been
used for as long as five minutes or more.
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ENGINE - Engine Assembly11-15
35-4

5
25-33 35-45 Nm
25-33
ft.lbs.
24
35-45 N
m
25-33
ft.lbs.
23-2
7
250166309
I23
:l;nbs.
50-65 Nm
36-47 ft.lbs.
dv--iu wm: ’22-29 ft.lbs. \ d.(,(I3L i‘9
50-65 Nm*Cb36-47 ft.lbs.* -
Removal steps
1. Connection for accelerator cable(Refer to GROUP
13-Service Adjustment
Procedures.)
2. Connection for heater hose
3. Connection for brake booster vacuum
hose
4. Connection for fuel high pressure hose 5. O-ring
6. Connection for fuel return hose
7. Connection for vacuum hose
8. Connection for oxygen sensor
9. Connection for engine coolant temperature gauge unit
10. Connection for engine coolant
temperature sensor
11. Connection for
ISC12. Connection for injector13. Connection for EGR temperature sensor (California vehicles only)
14. Connection for ignition power transistor
15. Connection for condenser
16. Connection for TPS
17. Connection for idle speed control motor
position sensor
18. Connection for distributor
30-40 Nm
\22-29 ft.lbs.
bO-50 Nm29- 36 ft.lbs.
19. Connection for crankshaft position sensor
20. Connection for ground cable
21. Control wiring harness
22. Connection for generator
23. Connection for oil pressure switch
dae I)* 24. Power steering oil pump 27. Gasket
28. Clamp of pressure hose (Power steering) and high pressure hose (Air conditioning)
29. Engine mount bracket
30. Self locking nut
,** *+ 31. Engine assembly
IdOTEf-or tightening locations indicated by the * symbol. firsttighten temporarily, and then make the final tightenrng wrth?he entire werght of the engine applied to the vehicle body.
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11-16ENGINE - Engine Assembly
SERVICE POINTS OF REMOVAL
Ml 1SBBC
24. REMOVAL OF POWER STEERING OIL PUMP
Remove the oil pump (with the hose attached).
NOTE
Suspend the removed oil pump (by using wire or similar
material) at a place where no damage will be caused
during removal/installation of the engine assembly.
25. REMOVAL OF AIR CONDITIONING COMPRESSOR
Disconnect the
connection of the air conditioning compres-
sor, and then remove the compressor (with the hose at-
tached) from the compressor bracket.
NOTE
Suspend the removed air conditioning compressor (by using wire or similar material) at a place where no damage
will be caused during removal/installation of the engine as-
sembly.
29. REMOVAL OF ENGINE MOUNT BRACKET
(1) Attach wire or similar material to the engine hook, and then suspend (to the extent that there is no slackness
of the wire) by using a chain block or similar arrange-
ment.
(2) Remove the engine mount bracket.
31. REMOVAL OF ENGINE ASSEMBLY
(1) Check to be sure that all cables, hoses, harness connectors, etc. are disconnected from the engine.
(2) Lift the chain block slowly to remove the engine assembly upward from the engine compartment
.
SERVICE POINTS OF INSTALLATION
MllSDAX
31. INSTALLATION OF ENGINE ASSEMBLY
Install the engine assembly. When doing so, check
carefully to be sure that all pipes and hoses are con- nected, and that none are twisted, damaged, etc.
25. INSTALLATION OF AIR CONDITIONING
COMPRESSORI24. POWER STEERING OIL PUMP
Adjust belt tension. (Refer to
P. 1 1-l 2.)
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