1991 MITSUBISHI 3000GT wheel bolt torque

GENERAL - How to Use This Manual00-3HOW TO USE THIS MANUAL
MOOBAAF
c;SCOPE OF MAINTENANCE, REPAIR AND
DEFINITION OF TERMS
SERVICING EXPLANATIONSSTANDARD VALUE
bThis manual provides explanations, etc. concerning
procedures for the inspection, maintenance, repair
and servicing of the subject model. Unless other-
wise specified, each service procedure covers all
models. Procedures covering specific models are
identified by the model codes, or similar designation
(engine type, transaxle type, etc.). A description of
these designations is covered in this unit under
“VEHICLE IDENTIFICATION”.
SERVICE ADJUSTMENT PROCEDURES“Service Adjustment Procedures” are procedures
for performing inspections and adjustments of
particularly important locations with regard to the
construction and for maintenance and servicing, but
other inspections (for looseness, play, cracking,
damage, etc.) must also be performed.
SERVICE PROCEDURESThe service steps are arranged in numerical order
and attentions to be paid in performing vehicle
service are described in detail in SERVICE POINTS.
TROUBLESHOOTING
Troubleshootings are classified into master trouble-
shooting and group troubleshooting and located as
follows:
The master troubleshooting is prepared when the
trouble symptom relates to two or more groups and
given in MASTER TROUBLESHOOTING.
The group troubleshooting guide is prepared for
causes of problems related to that individual groupIndicates the value used as the standard for judging
the quality of a part or assembly on inspection or the
value to which the part or assembly is corrected and
adjusted. It is given by tolerance.
LIMITShows the standard for judging the quality of a part
or assembly on inspection and means the maximum
or minimum value within which the part or assembly
must be kept functionally or in strength. It is a value
established outside the range of standard value.
REFERENCE VALUEIndicates the adjustment value prior to starting the
work (presented in order to facilitate assembly and
adjustment procedures, and so they can be com-
pleted in a shorter time).
CAUTIONIndicates the presentation of information particularly
vital to the worker during the performance of
maintenance’ and servicing procedures in order to
avoid the possibility of injury to the worker; or
damage to component
.parts, or a reduction of
component or vehicle function or performance, etc.
INDICATION OF TIGHTENING TORQUEThe tightening torque shown in this manual is a
basic value with a tolerance of
+lO% except the
following cases when the upper and lower limits of
tightening torque are given.
(1) The tolerance for the basic value is within
+ I no/-
only; a troubleshooting guide is prepared for eachI iv,“.appropriate group.(2) Special bolts or the like are in use.
(3) Special tighteningmethods are used.
MODEL INDICATIONS
The following abbreviations are used in this manual for classification of model types.M/T:Indicates the manual transaxle, or models equipped with the manual transaxle.
A/T:Indicates the automatic transaxle, or models equipped with the automatic transaxle.
MPI: Indicates the multi-point injection, or engines equipped with the multi-point injection.
Turbo: Indicates an engine with turbocharger, or a model equipped with such an engine.
Non-Turbo: Indicates an engine without turbocharger, or a model equipped with such an engine.
FWD: Indicates the front wheel drive vehicles.
AWD; Indicates the all wheel drive vehicles.
ABS:Indicates the anti-lock braking system or models equipped with the anti-lock braking system.
ECS: Indicates the electronic control suspension or models equipped with the electronic control
suspension.
4WS:Indicates the 4-wheel steering system or models .equipped with the 4-wheel steering system.
TSB Revision

11-52ENGINE - Crankshaft, Flywheel and Drive Plate
9. INSTALLATION OF BEARING CAP
(1) Attach the bearing cap on the cylinder block as shown in
the illustration.
(2) Tighten the bearing cap bolts to the specified torque in‘I
the sequence shown in the illustration.
J ~
(3) Check that the crankshaft rotates smoothly.
Cral
Bearing cap
\Bearing cap bolt
Front of engine
(Timing belt side)
7EN270(4) Check the end plate. If it exceeds the limit value,
replace the thrust bearing.
Standard value: 0.05
- 0.25 mm (.0020 - .0098 in.)
Limit: 0.3 mm
(.012 in.)
-rent ofengineTimingIelt side)
8.
LLiN03,ij
1 TSB RevisionINSTALLATION OF BEARING CAP STAY
(1) Apply engine oil to the thread and bearing surface of
each bolt.
(2) Temporarily tighten the bolts on the cylinder block side.(3) Tighten the bolts on the bearing cap side to specified
torque.(4) Finally, tighten the bolts on the cylinder block side to
specified torque.
NOTEThe bearing cap stays A and B differ in shape. Install
correct ones on correct sides.d

21-22CLUTCH - Clutch Cover and Disc
APPLYgrease
6CLOlE
lir#LClutch disc
Clutch cover
assembly
v-l6CL02EITSB Revision
SERVICE POINTS OF INSTALLATIONMZIGDAU5. APPLICATION OF GREASE TO RELEASE FORK
(1) Apply a coating of the specified grease to the point of
contact with the fulcrum and the point of contact
withthe release bearing.
Specified grease: MITSUBISHI genuine grease
Part No. 0101011 or equivalent
CautionWhen installing the clutch, apply grease to each
part, but be careful not to apply excessive grease;excessive grease will cause clutch slippage and
shudder.(2) Apply a coating of the specified grease to the end of the
release cylinder’s push rod and to the push rod hole in
the release fork.
Specified grease: MITSUBISHI genuine grease
Part No. 0101011 or equivalent
4.APPLICATION OF GREASE TO CLUTCH RELEASE BEAR-ING (FWD)
Pack the inner surface of the clutch release bearing and the
groove with the specified grease.
Specified grease: MITSUBISHI genuine grease
Part No. 0101011 or equivalent
2. APPLICATION OF GREASE TO CLUTCH DISC
/ 1.
CLUTCH COVER ASSEMBLY
(1) Apply a coating of the specified grease to the clutch
disc spline, and then use a brush to rub it in.
Specified grease: MITSUBISHI genuine grease
Part No. 0101011 or equivalent
(2) Using the universal clutch disc aligner, position the
clutch disc to the flywheel.
(3) Install the clutch cover assembly. Tighten the bolts a
little at a time, working in a diagonal sequence, finally
tightening them to the specified torque.I

26-8FRONT AXLE - Hub and KnuckleI
INSPECTIONM26lCAEl Check the hub for cracks and spline for wear.
l Check the oil seal for damage.
l Check the knuckle for cracks.
l Check for defective bearing.
L)
NOTE
If the meshing of the wheel bearing outer race and the
knuckle, or of the wheel bearing inner race and the hub, is
loose, replace the bearing or damaged parts.
llFO041:ter
pinMEASUREMENT OF FRONT HUB UNIT BEARING ROTA-
TION STARTING TORQUE(1) Set the special tool to the front hub unit bearing.
(2) Holding the special tool (bolt), tighten its nut to 200 to 260
Nm (145 to 188 ft.lbs.).
(3) Turn the hub to cause grease to distribute evenly over the
bearing.(4) Measure the rotation starting torque of the hub.
Limit: 1.8 Nm (16
in.lbs.) or less
SERVICE POINT OF INSTALLATIONM261OAG
3.INSTALLATION OF DRIVE SHAFT NUT / 2. COTTER PIN
(I) Be sure to install the washer and wheel bearing nut in
the specified direction.
(2) After installing the wheel, lower the vehicle to the
ground and finally tighten the wheel bearing nut.
(3) If the position of the cotter pin holes does not match,
tighten the nut up to 260 Nm (188
ft.lbs.1 in maximum.
(4) Install the cotter pin in the first matching holes and bend
it securely.
TSB RevisionII

REAR AXLE - Service Adiustment Procedures27-3
llN00261 SERVICE ADJUSTMENT
PRbCEDURES
WHEEL BEARING END PLAY INSPECTIONM27FBAG
1.Inspect the play of the bearings while the vehicle is jacked
up and resting on floor jack.
2. Remove the hub cap and then release the parking brake.
3. Remove the caliper assembly and the brake disc.
4. Check the bearing’s end play.
Place a dial gauge against the hub surface; then move the
hub in the axial direction and check whether or not there is
end play.
Limit: 0.05 mm
(.002 in.) or less
NOTEIf the limit value is exceeded, the lock nut should be
tightened to the specified torque and check the end play
again.5. Replace the rear hub bearing unit if an adjustment cannot
be made to within the limit.
REAR HUB ROTARY-SLIDING RESISTANCE (TOR-
QUE) INSPECTION
M27FFAD
1.Inspect the play of the bearings while the vehicle is jacked
up and resting on floor jack.
2. Release the parking brake.
3. Remove the caliper assembly and the brake disc.
4.
5.After turning the
huba few times to seat the bearing, attach
a spring balance to the hub bolt, and, pulling at a 90” angle
from the hub bolt, measure to determine whether or not
the rotary-sliding resistance of the rear hub (the rotary-
sliding torque of the rear hub) is the standard value.
Limit:
Rear hub rotary-sliding resistance
31 N (7 Ibs.) or lessRear hub rotary-sliding torque
1.8 Nm (1.30 ft.lbs.) or less
NOTEIf the limit value is exceeded, loosen the nut and then
tighten it to the specified torque, and check the rear hub
rotary-sliding torque again.
Replace the rear hub unit bearing if an adjustment cannot
be made to within the limit.
[fsB RevisionI

27-14REAR AXLE - Service Adjustment Procedures~
Incorrect
llA033CREAR WHEEL BEARING ROTATION TORQUE
I
CHECKM27FJAB1. Remove the drive shaft from the companion flange.
2. Remove the brake pad or caliper assembly.
3. Attach a spring balance to the hub bolt, then, pulling the
‘d ’balance at a right angle to the hub bolt, measure the
rotation torque (rotation starting torque) to see whether it iswithin the standard value.
Standard value: 12 N (2.6 Ibs.) [rotation starting torque0.7 Nm (6
in.lbs.)] or less
4. If the rotation starting torque exceeds the standard value,
check the tightening torque of the axle shaft companion
flange. If it is normal, replace the bearing.
LIMITED-SLIP DIFFERENTIAL CHECKM27FlAB
1.Block the front wheels and move the shift lever to neutral.2. Completely release the parking brake.
3. Jack up the rear wheels and place a rigid rack at the
specified part of the side sill.
4. Disconnect the coupling of the differential and propeller
shaft.LJ5. When one wheel is slowly rotated, check whether or not
the wheel on the other side turns in the same direction.
6.If it turns in the opposite direction, replace the viscous unit.
1 TSB Revision

33A-4FRONT SUSPENSION - Service Adjustment Procedures
Strut lowermounting bolt(upper)
\/
0 camber@ camber12FOO31
SERVICE ADJUSTMENT PROCEDURES
M33FBAT
FRONT WHEEL ALIGNMENT‘d
TOE-INStandard value: 0 2 3 mm (0 +
.12 in.)
1. Adjust the toe-in by undoing the clips and turning the left
and right tie rod turnbuckles by the same amount (in
opposite directions).
2.After making the adjustments, use a turning radius gauge to
confirm that the steering wheel turning angle is within thestandard value range. (Refer to GROUP 37A
- Service
Adjustment Procedures.)Standard value:
Inner wheel
33”45’Outer wheel
28”21’
CAMBER AND CASTERStandard value:
Camber0” IL 30’
Caster3”55’ IL 30’
Install the special tool by tightening it to the same torque as
that applied to the drive shaft nut.
a
To adjust camber, turn the strut lower mounting bolt (upper).
One graduation is equivalent to about 20’ in camber. Caster hasbeen factory-adjusted to the standard value and requires no
adjustment.
Caution
1.One camber graduation changes toe by about 0.5 mm
(.02 in.). Be sure to adjust toe after camber has been
adjusted.
2.The difference in camber between right and left shouldbe within
O”30’.
WHEEL BEARING ADJUSTMENTM33FCAA
Bearing preload is pre-set to the specified value by design andtherefore can not be adjusted.
TSB Revision
1

34-6REAR SUSPENSION - Service Adiustment Procedures12NOOOl
WHEEL BEARING END PLAY INSPECTIONM34FBAG
1.Inspect the play of the bearings while the vehicle is jackedup and resting on floor jack.
2. Remove the hub cap and then release the parking brake.
s&i3. Remove the caliper assembly and the brake disc.
4. Check the bearing’s end play.
Place a dial gauge against the hub surface; then move the
hub in the axial direction and check whether or not there is
end play.Limit: 0.05 mm
(.002 in.) or less
NOTEIf the limit value is exceeded, the lock nut should be
tightened to the specified torque and check the end play
again.5. Replace the rear hub bearing unit if an adjustment cannot
be made to within the limit.
REAR HUB ROTARY-SLIDING RESISTANCE (TOR-
QUE) INSPECTION
M34FCAC
1.Inspect the play of the bearings while the vehicle is jackedup and resting on floor jack.
2. Release the parking brake.
3. Remove the caliper assembly and the brake disc.
..J
4.After turning the hub a few times to seat the bearing, attach
a spring balance to the hub bolt, and, pulling at a 90” anglefrom the hub bolt, measure to determine whether or not
the rotary-sliding resistance of the rear hub (the
rotary-sliding torque of the rear hub) is the standard value.
Limit:
Rear hub rotary-sliding resistance
31 N (7 Ibs.) or lessRear hub rotary-sliding torque
1.8 Nm (1.30 ftlbs.) or less
NOTEIf the limit value is exceeded, the lock nut should be
tightened to the specified torque and check the end play
again.5. Replace the rear hub unit bearing if an adjustment cannot
be made to within the limit.
TSB Revision