1989 MITSUBISHI GALANT Service Repair Manual

INTAKE AND EXHAUST - Intake Manifold 15-23
SERVICE POINTS OF REMOVAL
M1SMEAJa
10. DISCONNECTION OF FUEL HIGH PRESSURE HOSE Relieve pressure in the fuel pipe line to prevent fuel
outflow. (Refer to GROUP
13-MFI Components on Vehicle
Inspection.)
Caution
Cover fuel pipe line with rag after relieving pressure as
certain pressure may still remain.
16.REMOVAL OF FUEL RAIL, FUEL INJECTOR AND
PRESSURE REGULATOR
Remove fuel rail with fuel injector and pressure regulator
on.
Caution Do not drop injector when removing fuel rail.
INSPECTION MlSMCAJ
Check the following points; replace the part if a problem is
found.
INTAKE MANIFOLD1. Check for damage or cracking of any part.
2. Check for obstruction of the negative pressure (vacuum) outlet port, and for obstruction of the water passage or
gas passage.
3. Using a straight edge and a thickness gage, check for distortion of the cylinder head installation surface.
Standard value: 0.15 mm
(406 in.) or less
Limit: 0.3 mm (.012
in.)
05AOO28
SERVICE POINTS OF INSTALLATIONMlSMDAL
16.lNSTALLATlON OF FUEL RAIL, FUEL INJECTOR
AND PRESSURE REGULATOR
CautionBe careful not to drop the injector when the fuel rail
is installed.

15-24INTAKE AND EXHAUST - Turbocharger
TURBOCHARGER
REMOVAL AND INSTALLATION12-15 Nm9-11 ft.lbs. )n
MlSLA-
40-47 ftlbs.
v I”12-15 Nm g
9-11 ftlbs.
i40-50 Nm29-36 ft.lbs.
05A0193
30-40 Nm22-29 ftlbs. *Draining

andRefilling Engine
(Refer to GROUPOO-Main-tenance Service.)aDraining and Refilling Engine
---. .- _^ . ._;_I(Refer to CiKUUi-’
UU-M~III-11
tenance Service.)-I
Removal steps
1.
Radiator (Refer to GROUP 14-Radiator.)
13. Gasket2. Connection for air intake hose14. Connection for water hose
3. Connection for vacuum hoseI 5. Connection for water pipe B
4. Connection for air hose A16. Self-locking nut
4*5.Oxygen sensor17.Gasket
6.Air outlet fitting18.Exhaust
manifold
7.Gasket19.Exhaustmanifold
gasket
8.Heat protector A 20.Ring
9.Heat protector B21.Gasket
10.Self-locking nut11.Engine hanger
12. Eye bolt
1‘
TSB RevisionI

INTAKE AND EXHAUST - Turbocharger15-25
35-50 Nm
25-3\6 fubs*
28-34 Nm
920-25 ftlbs.
3133
26H,a
/IW32Rk .p&
/25
55-65
40-47
25-36 ftlbs.
22. Oil return pipe23.Gasketl I) l + 24.Turbocharger
25. Eye bolt
26.Gasket27. Water pipe B28.Eye bolt29.Gasket
30. Water pipe A
31.Eye bolt32.Gasketl 433.Oil pipe34.Exhaustfitting35.Gasket
r
8-10 Nm
6-7 ft.lbs.
Flare nut OJK557
SERVICE POINTS OF REMOVAL
M15lBAoa
5. REMOVAL OF OXYGEN SENSOR Disconnect the connector of the oxygen sensor, and install
the special tool to the oxygen sensor.
Then, using an offset (box-end) wrench, remove the oxygen sensor.
0510023
I‘“*“n,&.”
1 TSB Revision

15-26INTAKE AND EXHAUST - Turbocharger
24. REMOVAL OF TURBOCHARGER ASSEMBLY Remove the turbocharger assembly with the exhaust fitting,
water pipe A, water pipe
B and the oil pipe attached to it.
33. REMOVAL OF OIL PIPE
Caution
After disconnecting the oil pipe, take care that foreign material does not enter the oil passage hole of the
turbocharger assembly.
INSPECTIONMlSLCAC
TURBOCHARGER ASSEMBLY CHECK
l Visually check the turbine wheel and the compressor wheel for cracking or other damage.
lCheck whether the turbine wheel and the compressor wheel
can be easily turned by hand.
l Check for oil leakage from the turbocharger assembly. 0
Check whether or not the turbocharger waste gate valve
remains open. If any problem is found, replace the part
after disassembly.
OIL PIPE AND OIL-RETURN PIPE CHECK
Check the oil pipe and oil-return pipe for clogging, bending, or
other damage. If there is clogging, clean it.
SERVICE POINTS OF INSTALLATION M15lDADa
24. INSTALLATION OF TURBOCHARGER ASSEMBLY Clean the alignment surfaces shown in the illustration.
Caution
When cleaning, care must be taken so that a piece of thegasket does not enter the oil passage hole.
1 TSB RevisionI

INTAKE AND EXHAUST -Exhaust Manifold (SOHC-8 VALVE>15-27
EXHAUST MANIFOLD models>
IEMOVAL AND INSTALLATIONYSNA-A
15-20
Nm
9-11 ftlbs.
40-50 Nm
Removal steps29 - 36 ft.lbs.
1. Self locking nut2. Gasket
3. Heat protector
a*4. Oxygen sensor
5. Engine hanger6. Exhaust manifold7. Exhaust manifold gasket
SERVICE POINTS OF REMOVAL MlSNBAG
4. REMOVAL OF OXYGEN SENSOR
Disconnect the connector of the oxygen sensor, and install
the special tool to the oxygen sensor.
Then, using an offset (box-end) wrench, remove the oxygen
sensor.
INSPECTldNMllNCAL
Check the following points; replace the part if a problem is
found.
EXHAUST MANIFOLD
Check for damage or cracking of any part.
EXHAUST MANIFOLD GASKET
Check for flaking or damage of the gasket.
TSB Revision1

15-28INTAKE AND EXHAUST - Exhaust Manifold
EXHAUST MANIFOLD

PEMOVAL AND INSTALLATION MlSNA-B
.15 Nm
1 ft.lbs.
7-l
40-50Nm ----‘--A
40-50 Nm /-29-36 ft.lbs.
30-40Nmj’22-29 ft.lbs.
Removal steps
1.Condenser fan motor (Vehicles with airconditioning)
2. Self locking nut
3. Gasket
4*4. Oxygen sensor5. Exhaust manifold cover (A)6. Self locking nut7. Engine hanger8. Exhaust manifold
9. Exhaust manifold gasket
IO. Exhaust manifold cover(B)
TSB Revision1

INTAKE AND EXHAUST - Exhaust Manifold 15-29
SERVICE POINTS OF REMOVAL
MlBNBAFl
4. REMOVAL OF OXYGEN SENSOR
Disconnect the connector of the oxygen sensor, and install
the special tool to the oxygen sensor.
Then, using an offset (box-end) wrench, remove the
oxygen sensor.
INSPECTION MlSNCALl
Check the following points; replace the part if a problem is
found.
EXHAUST MANIFOLD
Check for damage or cracking of any part.
EXHAUST MANIFOLD GASKET
Check for flaking or damage of the gasket.

15-30 INTAKE AND EXHAUST -Exhaust Manifold
EXHAUST MANIFOLD
REMOVAL AND INSTALLATION
I12-15 Nm9- 11ft.lbs.
27-33 Nm20-23 fklbs.
40 50 Nm29136 ft.lbs.yAS
40-50Nm29- 36ft.lbs.30-40Nm22- 29ft.lbs.12-15 1
30-40Nm9-11 ft.
\
UrnIbs.
MlINA-B
22-29 ft.lbs
Removal steps*b’.
1. Condenser fan motor (Vehicles with air conditioning except AWD A/T)
2. Self locking nut3. Gasket4. Exhaust manifold cover (A)
l *5. Oxygen sensor
6. Self locking nut
7. Engine hanger
8. Exhaust manifold
9. Exhaust manifold gasket
10. Exhaust manifold cover (B)
SERVICE POINTS OF REMOVALMl5NNAH
5. REMOVAL OF OXYGEN SENSOR
Disconnect the connector of the oxygen sensor, and install
the special tool to the oxygen sensor.
Then, using an offset (box-end) wrench, remove the oxygen
sensor.
INSPECTION
Refer to P.15-29i
TSB Revision M15NCA-l