Mitsubishi Galant 9G. Manual — part 426
MAINTENANCE SERVICE
TSB Revision
GENERAL
00-42
SCHEDULED MAINTENANCE UNDER SEVERE USAGE CONDITIONS
Maintenance should be carried out according to the following table:
Severe usage conditions:
1. Driving on dusty, rough, muddy or salt-spread roads
2. Towing or police, taxi or commercial operation
3. Extensive idling and/or low speed operation
4. Repeated short-trip operation at freezing temperatures (engine not thoroughly warmed up)
5. Extended use of brakes while driving
6. Driving in sandy areas
7. More than 50% operation in heavy city traffic during hot weather above 90
°F (32°C)
MAINTENANCE SERVICE
1. FUEL SYSTEM (TANK, PIPE LINE AND
CONNECTION, AND FUEL TANK FILLER TUBE
CAP) (CHECK FOR LEAKS)
M1001001600312
Check for damage or leakage in the fuel lines and connections.
2. FUEL HOSES (CHECK CONDITION)
M1001001700308
1. Inspect the surface of fuel hoses for heat and mechanical
damage. Hard and brittle rubber, cracking, tears, cuts,
abrasions and excessive swelling indicate deterioration of
the rubber.
2. If the fabric casing of the rubber hose is exposed by cracks
and abrasions in the fuel system, the hose should be
replaced.
NO. MAINTENANC
E ITEM
SERVICE
INTERVALS
KILOMETERS
IN
THOUSANDS
24
48
72
96
120
144
168
192
MILEAGE IN
THOUSANDS
15
30
45
60
75
90
105
120
MONTHS
12
24
36
48
60
72
84
96
3
Air cleaner filter Replace
X
X
X
X
X
X
X
X
5
Spark plugs
Replace
X
10
Engine oil
Change
Every 3 months or every 6,000 km (3,750 miles)
11
Engine oil filter
Replace
Every 3 months or every 6,000 km (3,750 miles)
12
Transmission
fluid
Change fluid
X
chec
k
X
X
chec
k
X
X
check
X
X
chec
k
X
15
Disc brake
pads, rotors
Inspect for wear
Every 6 months or every 12,000 km (7,500 miles)
21
Tires
Rotate
Every 3 months or every 6,000 km (3,750 miles)
MAINTENANCE SERVICE
TSB Revision
GENERAL
00-43
3. AIR CLEANER FILTER (REPLACE)
M1001001800338
The air cleaner element will become dirty during use, reducing
its effectiveness. Replace it with a new one.
REPLACEMENT OF AIR CLEANER ELEMENT
1. Unclamp the air cleaner housing cover.
2. Remove the air cleaner element and install a new one.
3. When clamping the air cleaner housing cover in place, be
sure that the cover is completely closed.
4. EVAPORATIVE EMISSION SYSTEM (EXCEPT
EVAPORATIVE EMISSION CANISTER) (CHECK
FOR CLOGGING)
M1001001900324
If the fuel-vapor vent line is clogged or damaged, fuel vapor will
escape into the atmosphere causing excessive emissions. Dis-
connect the line at both ends, and blow it clean with com-
pressed air. Remove the fuel tank filler tube cap from the filler
tube and check to see if there is evidence that the seal makes
improper contact to the filler tube.
5. SPARK PLUGS (REPLACE)
M1001002000346
CAUTION
Iridium plugs are used. Use care not to damage the iridium
tips of the plugs. Do not adjust the spark plug gap.
1. Spark plugs must spark properly to assure proper engine
performance and reduce exhaust emission level. Therefore,
they should be replaced periodically with new ones.
Spark plug type
2. The new plugs should be checked for the proper gap.
Spark plug gap: 0.7
− 0.8 mm (0.028 − 0.031 inch)
3. Install the spark plugs and tighten to 25
± 5 N⋅m (18 ± 4
ft-lb).
AC305838
AB
MAKER
2.4L ENGINE
3.8L ENGINE
NGK
LZFR6AI
FR6EI
DENSO
−
K20PSR-B8
AKX00383
AKX00383
IRIDIUM TIP
AK
MAINTENANCE SERVICE
TSB Revision
GENERAL
00-44
6. INTAKE AND EXHAUST VALVE CLEARANCE
(INSPECT AND ADJUST)
M1001012900027
1. Before checks, check that the engine oil, starter and battery
are normal. Also, set the vehicle in the following condition:
• Engine coolant temperature: 80 − 95°C (176 − 203°F)
• Lights and all accessories: OFF
• Transaxle: P range
NOTE: Vehicles for Canada, the headlight, taillight, etc.
remain lit even when the lighting switch is in "OFF" position
but this is no problem for checks and adjustment.
2. Remove all of the ignition coils.
3. Remove the rocker cover.
4. Turn the crankshaft clockwise until the notch on the pulley is
lined up with "T" mark on the timing indicator.
5. Move the rocker arms on the No.1 and No.4 cylinders up
and down by hand to determine which cylinder has its piston
at the top dead center on the compression stroke.
If both intake and exhaust valve rocker arms have a valve
lash, the piston in the cylinder corresponding to these rocker
arms is at the top dead center on the compression stroke.
6. Valve clearance inspection and adjustment can be
performed on rocker arms indicated by white arrow mark
when the No.1 cylinder piston is at the top dead center on
the compression stroke, and on rocker arms indicated by
black arrow mark when the No.4 cylinder piston is at the top
dead center on the compression stroke.
7. Measure the valve clearance.
If the valve clearance is not as specified, loosen the rocker
arm lock nut and adjust the clearance using a thickness
gauge while turning the adjusting screw.
Standard value (hot engine):
<VEHICLES EXCEPT FOR CALIFORNIA EMISSION
REGULATION>
Intake valve: 0.20 mm (0.008 inch)
Exhaust valve: 0.32 mm (0.013 inch)
<VEHICLES FOR CALIFORNIA EMISSION REGULA-
TION>
Intake valve: 0.20 mm (0.008 inch)
Exhaust valve: 0.31 mm (0.012 inch)
8. While holding the adjusting screw with a screwdriver to
prevent it from turning, tighten the lock nut to the specified
torque.
Tightening torque: 9
± 1 N⋅m (80 ± 9 in-lb)
AK204362AD
EXHAUST VALVE SIDE
No. 1 No. 2 No. 3 No. 4
INTAKE VALVE SIDE
MAINTENANCE SERVICE
TSB Revision
GENERAL
00-45
9. Turn the crankshaft through 360 degree angle to line up the
notch on the crankshaft pulley with the "T" mark on the
timing indicator.
10.Repeat steps (7) and (8) on other valves for clearance
adjustment.
11.Install the rocker cover.
12.Install the ignition coils.
7. TIMING BELT (REPLACE)
M1001002300273
Replace the belt with a new one according to the maintenance
schedule
to assure proper engine performance.
<2.4L ENGINE>
For removal and installation procedures, refer to GROUP 11A,
Engine Mechanical <2.4L Engine>
− Timing Belt − Removal
and Installation
.
<3.8L ENGINE>
For removal and installation procedures, refer to GROUP 11C,
Engine Mechanical <3.8L Engine>
− Timing Belt − Removal
and Installation
8. DRIVE BELTS (FOR GENERATOR, POWER
STEERING PUMP AND AIR CONDITIONING)
(CHECK)
M1001008700031
DRIVE BELT TENSION CHECK <2.4L ENGINE>
CAUTION
Check the drive belt tension after turning the crankshaft
clockwise one turn or more.
1. Make sure that the indicator mark is within the area marked
with A in the illustration.
2. If the mark is out of the area, replace the drive belt. (Refer to
NOTE: The drive belt tension adjustment is not necessary
as auto-tensioner is adopted.
AC301702AB
INDICATOR MARK
A
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