engine oil MITSUBISHI 3000GT 1991 Owner's Manual

II-18ENGINE - Engine Assembly
19. ISC servo connector
20. TPS connector
21. Oil pressure switch and oil
pressure gauge unit connector22. Fuel injector harness connector
23. Knock sensor connector
24. Crankshaft angle sensor connector
25. Engine coolant temperature
switch connector (Air conditioner)
26. Engine coolant temperature
sensor connector
27. Engine coolant temperature
gauge unit connector
28. Condenser connector
29. Ignition coil connector
30. Power transistor connector
31. Fuel injector connector
32. Variable induction motor connector

33. Oxygen sensor connector 28
2930lOO-
120 Nm72 - 87 ft.lbs.
70 Nm
,51 ftlbs
** l * 34. Engine mounting bracket
35. Rear roll stopper bracket and engine
connection bolt36. Front roll stopper bracket and engineconnection bolt** l a 37. Engine assembly35 Nm
25 ft.lbs.
?I,---R
50-60 Nm36 - 43 ftlbs.
OlFOO19
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ENGINE - Enaine AssemblvII-19
Engine mount bracketSERVICE POINTS OF REMOVALMllSBEH
15. DISCONNECTION OF Ail? CONDITIONER COMPRES-SOR
/ 16. POWER STEERING OIL PUMP
Disconnect air conditioner compressor and power steering
oil pump (with the hose).
NOTEThe removed air conditioner compressor and power steer-
ing oil pump should be fastened (by using rope, etc.) in
.aposition that will not interfere with the removal/installation
of the engine assembly.
34. REMOVAL OF ENGINE MOUNT BRACKETBefore removing the engine mount bracket installation bolt,
use a chain block or similar arrangement to suspend the
engine assembly (to the extent that there is no looseness of
the chain).
37. REMOVAL OF ENGINE ASSEMBLYAfter checking that the cables, hoses, harness connectors,
etc. are all removed, slowly raise the chain block to lift the
engine assembly upward out of the engine compartment.
SERVICE POINTS OF INSTALLATIONMl
1SDBC
37. INSTALLATION OF ENGINE ASSEMBLYWhen mounting the engine, check to be sure that the
cables, hoses, harness connectors, etc. are all in the correct
position.
34. INSTALLATION OF ENGINE MOUNT BRACKETAttach the engine mounting bracket so that the arrow mark
on the mounting stopper is in the direction as shown in the
illustration.
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II-20ENGINE - Camshaft Oil Seals
CAMSHAFT OIL SEALS
RElVjOVAL AND INSTALLATION
MllZA-B
Pre-removal and Post-installation Operationl Removal and Installation of Timing Belt(Refer to P.l l-26.)l Removal and Installation of Intake Manifold(Refer to GROUP 15 - Intake Manifold.)3Nm
2.2 ftlbs.
3Nm
2.2 f’tlbs.
$1(Refer to GROUP 13 - Engine Control.)3Nm
90 Nm65 ft.lbs.
Removal steps
1. Center cover (front bank)
2. Connection for spark plug cables
3. Connection for breather hose
4. Connection for PCV hose
l *5. Rocker cover** l *6. Camshaft sprocketa* I)* 7. Camshaft oil seals
io01 NO040
01 NO042
1.4 in.) 4(.4 in.)
OlA0047
Sealant: 3M ATD PartNo. 8660 or equivalent
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ENGINE - Camshaft Oil SealsII-21
r
CamshaftOlM0032
Rear bank6
OlL105C(1) Only
No. 5 bolt in the rear-bank differs from other bolts
in length.
Rear bank No. 5 bolt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 mm (.79 in.)
Except rear bank No. 5 bolt
_................... 10 mm (.39 in.)
(2) Bolts are color-coded for the front and rear banks as
follows:
Front bank. . . . . . . . . . . . . . . . . .._....___.._______....__.._..._..... I.........Black
Rearbank. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Green(3) When the rocker cover gasket has been replaced,
tighten bolts in this order and then, retighten bolts 1 to 6
to 4 Nm (2.9 ft.lbs.).
1 TSB RevisionSERVICE POINTS OF REMOVALMllZBAG
6. REMOVAL OF CAMSHAFT SPROCKET
Using a wrench at the hexagonal part of the camshaft (to
prevent the crankshaft from turning), loosen the camshaft
sprocket bolt.
CautionDo not hold the camshaft sprocket with a tool, or a
damaged sprocket could result.7. REMOVAL OF CAMSHAFT OIL SEAL
(1) Cut out a portion in the camshaft oil seal lip.
\
(2)Cover the tip of a screwdriver with a cloth and apply it to
the cutout in the oil seal to pry off the oil seal.
Caution
Use care not to damage the camshaft and cylinder
head.SERVICE POINTS OF INSTALLATION
MllZDAI7. INSTALLATION OF CAMSHAFT OIL SEAL
(1) Apply a small amount of engine oil to the oil seal lip.
(2) Using the special tool, insert the oil seal.
6. INSTALLATION OF CAMSHAFT SPROCKET
Using a wrench at the hexagonal part of the camshaft (to
prevent the crankshaft from turning), tighten the camshaft
sprocket bolt.
CautionDo not hold the camshaft sprocket with a tool, or a
damaged sprocket could result.5. INSTALLATION OF ROCKER COVER
Tighten the rocker cover bolts in the order shown in the
illustration.
NOTE’

II-22ENGINE - Oil Pan and Oil Screen
OIL PAN AND OIL SCREENREMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation
Draining and Refilling
l Engine Oil(Refer to GROUP 00 -Maintenance Service.)Removal and Installationl Front Air Dam (Refer to GROUP 51 - Aero Parts.)l Under Cover
,
(Refer to GROUP 22, 23 -Transfer Assembly.)
13 NmPI, ll.r
wOlLO156
Sealant: MITSUBISHI GENUINE Part
No. MD9971 10 or equivalent
9Nm- . .. .
60-70Nm -43 - 51 ft.lbs.
MllHA--
,9Nm7 ft.lbs.
26 ft.lbs.6Nm4ft.lbs.7
lt.lbS.
Removal steps
1. Left member7 Ctclrtny
3. Transaxle stay (front)4. Transaxle stay (rear) 5. Bell housing cover6. Connection of oil return pipes60-70
Nm_ .43 - 51 ftms.
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7. Oil pan8. Oil screen^.L^^“1 wu06
1

ENGINE - Winder Head Gasket11-23
CYLINDER HEAD GASKETREMOVAL AND INSTALLATION
MllJA-6
Pre-removal and Post-installation Operation
Draining and Supplying
l Engine Coolant(Refer to GROUP 00 -Maintenance Service.)Removal-and Installationl Air Intake Manifold(Refer to GROUP 15 -Air intake Manifold.)l Turbocharger (Refer to GROUP 15 -Turbocharger.)l Exhaust Manifold(Refer to GROUP 15 - Exhaust Manifold.)l Timing Belt(Referto P.l I-26.)
10 Nm3Nm
2.2 klbs.P
~~(Refer to GROUP 13 - Engrne Control.)
10 Nm7 ft.lbs.
7 ft.lbs.\
.- .-.../A- Q/-s+: 11 ft.lbs.
120-nng
‘3, ;
%
;;
Water01 LO21
7
i2o-IjONmY rt.lDS.
87
- 94 ft.lbs.
76 - 83 ft.lbs.d
fl (Turbo)i20-130 Nm87 - 94 ftlbs.(Non-turbo)105-115Nm76 - 83 ft.lbs.Removal steps
I. Pipe assembly
2. Blow-by hose
90
Nm3. Center cover (Front bank)
4. Spark plug cable
HI 5. Rocker cover4* l a
I
6. Intake camshaft sprocket7. Timing belt rear cover (Cent
7.----A//OlFOO218. Ignition coil9. Connection of heater hose10. Connection of water hoses
Rocker coverIOmm
410mm(.4 in.)1.4 in.)
OlA004;
Sealant: 3M ATD Part
No. 8660 or equivalent
.er)
tl-urbo>11. Connection of radiator hose
12. Thermostat housing
13. Connection of water inlet pipe** l + 14. Cylinder head assembly** 15. Cylinder head gasket
(Front bank)TSB Revision

11-24ENGINE - Cylinder Head Gasket
ldentlfrcatlonmark
01 N009iOlL0472
0111044
JI
j:: 1: :: ::p:i
c1
Q80401Q5 c
Frontbank074930296
- OlL105j8
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5SERVICE POINTS OF REMOVALMllJBBF
6. REMOVAL OF INTAKE CAMSHAFT SPROCKET
(1) Using a wrench, hold the camshaft at its hexagon and
remove the camshaft sprocket bolt.
Caution
Locking the camshaft sprocket with a tool damages
the sprocket.(2) Remove the camshaft sprockets.
14. REMOVAL CYLINDER HEAD ASSEMBLYUsing the special tool, remove the cylinder head assembly.
SERVICE POINTS OF INSTALLATION
MllJDEJ
15. INSTALLATION OF CYLINDER HEAD GASKET
(1) Make sure that the gasket has the proper identification
mark for the engine.
(2) Lay the cylinder head gasket on the cylinder block with
the identification mark at the front top.
14. INSTALLATION OF CYLINDER HEAD ASSEMBLY
(1)Use a scraper to clean the gasket surface of the cylinder
head assembly.
CautionTake care that no foreign material gets into the
cylinder, coolant passages or oil passages.
(2) Using the special tool and a torque wrench, tighten the
bolts to the specified torque in the order shown in the
illustration. (in two or three cycles)
CautionInstall the head bolt washers with shear droop
upward as shown in the illustration.
(3) Back off the bolts once and tighten them to the
specified torque as shown in step (2).

ENGINE - Timinn Belt11-27
r bol
I01 NO07
10. REMOVAL OF ENGINE SUPPORT BRACKETRemove the engine support bracket in the numbered
sequence shown in the illustration.
Spraying lubricant, slowly remove the bolt (reamer bolt)
indicated by the arrow.
CautionKeep in mind that the reamer bolt is sometimes heat
seized on the engine support bracket.
Timing mark
mshaftrocket01 N009:
d Soft jawSoft jaw
OlL104E
Set hole
n
12. REMOVAL OF TIMING BELT(1) Align the timing marks.
(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 center bolt on the tensioner pulley to
remove the timing belt.
Caution
Water or oil on the belt shorten its life drastically, sothe removed timing belt, sprocket, and tensioner
must be free from oil and water. These parts should
not be washed. Replace parts if seriously contamin-
ated.
If there is oil or water on each part check. the front
case oil seals, camshaft oil seal and water pump for
leaks.SERVICE POINTS OF INSTALLATION
MllKDDB
13. INSTALLATION OF AUTO TENSIONER
(‘I) If the auto tensioner rod is in its fully extended position,
reset it as follows.@ Keep the auto tensioner level
and: in that position,
clamp it in the vise with soft jaws.@ Push in the rod little by little with the vise until the
set hole @ in the rod is aligned with that @ in the
cylinder.
CautionPush in the rod slowly to prevent the push rod
from being damaged.@ Insert a wire [I
.4 mm (.055 in.) in diameter] into the
set
ho&.@ Unclamp the auto tensioner from the vise.
(2) Install the auto tensioner.
CautionLeave the wire installed in the auto tensioner.
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ENGINE - Rocker Arm and Camshaft11-31
ROCKER ARM AND CAMSHAFTREMOVAL AND INSTALLATION
11 Nm8 ftlbs.
MllZA-0
7EN0244
Removal steps
I. Crank angle sensor adaptor2. Bearing cap front3.Oil seal
4. Bearing cap rear
5.Circular packing6.Bearing cap No.27.Bearing cap No.4
8.Bearing cap No.3
9.Camshaft10.Rocker arm11.Lash adjuster
Installation steps
11. Lash adjuster10. Rocker arml * 9. Camshaft*a 8. Bearing cap No. 3l *7. Bearing cap No. 4l *6. Bearing cap No. 2** 4. Bearing cap rearI)* 2. Bearing cap front*+ 5. Circular packingl 43. Oil sealI. Crank angle sensor adaptor
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ENGINE - Rocker Arm and Camshaft11-33
About 10 mm C.39 In.17ENO248
i,(2) Tighten gradually in two or three steps and finally
tighten to specified torque.
(3) Measure the camshaft end play. Replace if the limit is
exceeded.
Standard value: 0.1
- 0.2 mm (.004 - .008 in.)
Limit: 0.4 mm
(.016 in.)
NOTEIf the bearing cap is installed with the cylinder cap
removed, the valve will protrude. Install, therefore, with
the cylinder head lifted by about
10 mm (.39 in.).
5. INSTALLATION OF CIRCULAR PACKING
Using the special tool, insert the circular packing.
3. INSTALLATION OF OIL SEAL
Using the special tool, insert the oil seal.
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