1989 MITSUBISHI GALANT check engine

11-12ENGINE - Service Adjustment Procedures
DRIVE BELTS TENSION ADJUSTMENT
MllFMBBO
(1) Check that the belts are not damaged.
Power steenng
oil pump
pulley
\
W
ater
pump
pulley
I Tension
pulley/
Generator
compressor
Crankshaft
pulley pulley
We
Spindle----As.
IRESET button (2) Apply
IOON (22 Ibs.) force to the belt back midwa
y
between the pulleys as shown in the figure, measure the
deflection or, by using a belt-tension gauge, check the
belt’s tension.
Standard value:
Gauge250-500500-700400 (88)
N (Ibs.)(55-110)(110-154)
ForAKDeflection Approx. 8.05.0-5.56.0-7.0
compressor mm (in.)(.315)(.197-,217) (.236-.276)
For P/S
pump Gauge
250-500320-400470-570
N (Ibs.)(55-110)(71-88)(104-126)
Deflection 6.0-9.0
-mm (in.)(.236-,354)
NOTE
There is more than one type of belt-tension gauge (type A and
type
8, for example), so be sure to use the gauge according to
its instructions for use.
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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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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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ENGINE - Oil Pan and Oil Screen 11-23
OIL PAN
AND
OIL SCREENMllHA-A
REMOVAL AND INSTALLATION
Pre-removal and Post-installation
Bolt hole
portion
0180052
Sealant: MITSUBISHI GENUINE
PART
No.MD970389or equivalent
Removal steps 1. Drain plug
4**4 2. Oil pan3. Oil screen
4. Oil screen gasket
15-22 Nm11-16 ft.lbs.
U’@
35-45 Nm a25- -33 ft.lbs.iowaI32
d- -<
--,\9 -
\’ 63
%e
;
01 LO583\01 LO584
SERVICE POINTS OF REMOVALMllHBAFO
2. REMOVAL OF OIL PAN
(1) Remove the oil pan mounting bolts.
(2) Tap the general service tool in between the cylinderblock and the oil pan
.
Caution
Do not use a screwdriver, a chisel or a similar tool
when removing the oil pan.
(3) Remove the oil pan by placing a brass bar at the corner
of the general service tool and then tapping with a
hammer.
INSPECTIONMllHCACO
lCheck the oil pan for damage and cracks. Replace if faulty.
l Check the oil screen for clogging; damage and cracks. Replace if faulty.
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ENGINE - Cvlinder Head GasketII-33
Identification markr3
Intake
side “4G63K”
Front of
Exhaust side
OlA0669
Front of engine
I)Intake side
Exhaust side
OlR0391
Ei;. -Qmm (in.)0140674 (2) Place the cylinder head gasket on top of the cylinder
block so that the identification mark is facing upwards
as in the illustration.
Caution
The cylinder head gasket is easy to mis-install, so
be sure to check it. If it is mis-installed, malfunc-
tions such as no oil rising to the cylinder head will
occur.
32. INSTALLATION OF CYLINDER HEAD ASSEMBLYI31.
CYLINDER HEAD BOLT
(1) Use a scraper to clean the gasket surface of the cylin-
der head assembly.
Caution
Take care that no foreign material gets into the
engine coolant passages or oil passages.
(2) When installing the cylinder head bolts, check that theshank length of each bolt meets the limit. If the limit is
exceeded, replace the bolt.
Limit: Max. 99.4 mm (3.91 in.)
(3) Apply engine oil to the threaded part of the bolt and the
washer.
(4) According to the tightening sequence, tighten the bolts to the specified torque 80 Nm (58 ftlbs.).
(5) Loosen bolts completely.
(6) Torque bolts to 20 Nm (14.5
ft.lbs.).
(7) Tighten bolts l/4 turns (90”) more.
(8) Tighten bolts
l/4 turns (90”) additionally.
25. INSTALLATION OF WATER INLET FITTING, THERMOSTAT AND THERMOSTAT CASE ASSEMBLY
(1) Loosen the water inlet pipe bolt shown in the illustra-tion.
(2) Apply specified sealant to the thermostat case assem- bly as shown in the illustration.
Specified sealant: MITSUBISHI GENUINE PART
No.MD970389 or equivalent
(3) Apply a small amount of water to the O-ring of the
water inlet pipe, and press the thermostat case assem-bly onto the water inlet pipe.
(4) Install the thermostat case assembly mounting bolt.
(5) Tighten the water inlet pipe bolt.
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11-36
ENGINE - Timinn Belt
Timing mark
\
Camshaft sprocket
;/
i
\
IlEN0017
Tit
e
I;
OlAO550
01A0551
SERVICE POINTS OF REMOVALMllKBDF
2. REMOVAL OF ENGINE MOUNT BRACKET
(1) Jack up the vehicle after placing a wooden block
between the jack and the engine’s oil pan.
Caution
Jack up carefully so as not to apply an excessive
load to the various parts.
(2) Remove the engine mount bracket.
20. REMOVAL OF TIMING BELT
(1) Turn the crankshaft clockwise and align the timing
marks.
Caution
The crankshaft must always be turned clockwise.
(2) Make a mark on the back of the timing belt indicating the direction of rotation so it may be reassembled in the
same direction if it is to be reused.
(3) Loosen the bolt and tension spacer of the timing belt tensioner.
(4) Move the timing belt tensioner to the water pump side and loosely tighten the bolt so that the tensioner
doesn’t return; then remove the timing belt.
NOTE
If the timing belt is to be re-used, use chalk to mark (on
its flat side) an arrow indicating the clockwise direc-
tion.
Caution
1. As water or oil on the belt can seriously reduce
its usable life, ensure that the timing belt,
sprocket, and tensioner stay clean and dry while
removed, and never wash them. Parts that have
become too dirty should be replaced.
2. When any of the parts are oily, check to see
whether there are any oil leaks in any of the oil
seals or the cam shaft oil seal on the front of the
engine.
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ENGINE - Timing BeltII-37
-
u
w
rack
rack
Separ
Crack’
7EN207
Rounded belt side
Abnormal wear (fluffy canvas fiber)
7EN20E-1 TSB Revision 22. REMOVAL OF OIL PUMP SPROCKET
(1) Remove the plug on the side of the cylinder block.
(2) Insert a Phillips screwdriver [shank diameter 8 mm
(.31
in.)] to block the left silent shaft.
(3) Remove the oil pump sprocket nut.
(4) Remove the oil pump sprocket.
26. REMOVAL OF TIMING BELT “B” Make a mark on the back of the timing belt indicating the
direction of rotation so it may be reassembled in the same
direction if it is to be reused.
Caution
Water or oil on the belt shorten its life drastically, so
the removed timing belt, sprocket, and tensioner must be free from oil and water. These parts should not be
washed. Replace parts if seriously contaminated.
If there is oil or water on each part check the front case
oil seals, camshaft oil seal and water pump for leaks.
INSPECTIONMIlKCAD
TIMING BELTS
The timing belts must be checked closely. Should the following defects be evident, replace the belt with a new one.
(1) Hardened back surface rubber Glossy, non-elastic, and so hard that no mark is produced
even when scratched by a fingernail.
(2) Cracked back surface rubber.
(3) Cracked or separated canvas.
(4) Cracked tooth bottom.
(5) Cracked side.
(6) Abnormal wear on side.
NOTE
Normal belt should have clear-cut sides as if cut by a sharp
knife.

11-38
ENGINE - Timing Belt
Rubber
exposed
Tooth missing
and
canvas fiber exposed
lEN0002
Crankshaft
sprocket “B”
Crankshaft
aENzo4
Spacer
Chamfered
6EN009
(7) Abnormal wear on teeth.Initial stage:Canvas on load side tooth flank worn (Fluffy canvas
fibers, rubber gone and color changed to white, and unclear canvas texture)
Final stage: Canvas on load side tooth flank worn down and rubber
exposed (tooth width reduced)
(8) Missing tooth.
TENSIONER PULLEY
Turn the pulleys to check for possible binding, excessive play, and unusual noise. Replace the pulley if any of these defects is
evident.
SERVICE POINTS OF INSTALLATION
MllKDCE
29. INSTALLATION OF CRANKSHAFT SPROCKET “B”
Install the crankshaft sprocket “B” as shown while paying
attention to its direction.
28. INSTALLATION OF SPACER
(1) Apply a thin coat of engine oil to the outer circumfer-
ence of the spacer.
(2) Install the spacer with the chamfered end facing the oil
seal.
NOTE
If the spacer is installed adversely, the oil seal may be
damaged, resulting in the oil leaks.
26. INSTALLATION OF TIMING BELT “B”
(1) Ensure that crankshaft sprocket “B” timing mark and the silent shaft sprocket timing mark are aligned.
(2) Fit timing belt “B” over crankshaft sprocket “B” and
the silent shaft sprocket. Ensure that there is no slack in
the belt.
1 TSB Revision