engine MITSUBISHI SPYDER 1990 Service Repair Manual

REAR AXLE Troubleshooting
TROUBLESHOOTING
AXLE SHAFT
SymptomProbable causeRemedy
Noise while wheels are Brake drag
rotatingReplace
Bent axle shaft
Worn or scarred axle shaft bearing
Grease leakage Worn or damaged oil seal
Malfunction of bearing seal
Symptom
Noise Probable cause
Wear, play or seizure of ball joint Remedy
Replace
Excessive drive shaft spline looseness
DIFFERENTIAL (LIMITED SLIP DIFFERENTIAL)
SymptomProbable cause
Remedy
Abnormal noise during
driving or gear chang-Excessive drive gear backlash
Adjust
ing”’Insufficient drive pinion preload
II II
Abnormal noise
when cornering Excessive differential gear backlash
Worn spline of a side gear
Loose companion flange self-locking nut
Damaged differential gears
Damaged pinion shaft Adjust or replace
Replace
Retighten or replace
Replace
TSB Revision
Gear
Insufficient gear oil quantity
Improper drive gear tooth contact adjustmentReplenish
Adjust or replace
Incorrect drive gear backlash Adjust
I II
IImproper drive pinion preload adjustment
NOTE
l l:In addition to a malfunction of the differential carrier components, abnormal noise can also be caused by the
universal joint of the propeller shaft, the axle sh afts, the wheel bearings, etc. Before disassembling any parts,
take all possibilities into consideration and confi rm the source of the noise.
l 2: Noise from the engine, muffler vibration, transa xle, propeller shaft, wheel bearings, tires, body, etc., is easily
mistaken as being caused by malfunctions in the dif ferential carrier components. Be extremely careful and attentive
when performing the driving test, etc.
Test methods to confirm the source of the abnormal noise include: coasting, acceleration, constant speed
raising the rear wheels on a jack, etc. Use the met hod most appropriate to the circumstances.
driving,

R E A R
Symptom
Gear noise**
Gear oil leakage
The limited slip
differential does not
function (on snow, mud, ice, etc.)
NOTE
Noise from the engine, muffler vibration, transaxl e, propeller shaft, wheel bearings, tires, body, etc., is easily
mistaken as being caused by malfunctions in the dif ferential carrier components. Be extremely careful and attentive
when performing the driving test, etc.
Test methods to confirm the source of the abnormal include: coasting, speed
raising the rear wheels on a -jack, etc. Use the me thod most appropriate to the
In the event of seizure, disassemble and replace the parts involved, and also be sure to check for any irregularities and repair or replace as
l 4:In addition to disassembling and replacing the failed parts, be sure to check all components forirregularities
and repair or replace as necessary.
Probable cause Remedy
Damaged, broken, and/or seized
ofReplace
the drive gear and drive pinion
‘Damaged, broken, and/or seized drive pinion bear- ings
Damaged, broken, and/or seized side bearings
Damaged differential case
Inferior gear oil
Insufficient gear oil quantity
R e p l e n i s h
Worn or damaged front oil seal, OFan improperly Replace,
installed oil seal
Damaged gasket
Loose companion flange self-locking nut
Loose filler or drain plug Retighten or apply
‘Clean or replaceClogged or damaged vent plug
Insufficient drive
backlash
Excessive drive pinion preload
Excessive side bearing preload
Insufficient differential gear backlash
Excessive clutch plate preload
Inferior gear
oil
Insufficient gear oil quantity
Incorrect drive gear backlash
Insufficient drive pinion preload
Insufficient side bearing preload
Excessive differential gear backlash
drive gear clamping bolts
The limited slip device is damaged Adjust
Replace
Replenish
Adjust
Retighten
Disassemble, check the functioning
and replace the damaged parts
TSB Revision

MOUNT
CONTENTS
CROSSMEMBER. . . . . . . . . . . . . . . . . . . . . . . . . . .9SERVICE SPECIFICATIONS....‘::. . . . . . . . . . . .3
ENGINE MOUNTING. . . . . . . . . . . . . . . . . . . . . . .4SPECIAL TOOLS. . . . . . . . . . . . . . . . . . . . . . . . . . .3
...
ENGINE ROLL STOPPER,TRANSAXLE. . . . . . . . . . .. . . . . .
CENTERMEMBER. . . . . . . . . . . . . . . . . . . . . . . . . .7
TROUBLESHOOTING
. . . . . . . . . . . . . . . . . . . . . .3
GENERAL INFORMATION. . . . . . . . . . . . . . . . . .2

32-2POWER PLANT MOUNT General Information
The engine-transaxle mount is of an inertial axisthe front upper part of the engine at the front and
supporting type whose excellent features have
the rear upper part of the transaxle at the rear.
ready been proven in many Mitsubishi vehicles.
This arrangement effectively suppressesthe engine
The inertial s u p p o r t i n g t y p e m o u n t
CONSTRUCTION,
Engine (Non-turbo)>
Engine mount
, ,
Transaxle
mount
Engine (Turbo) and Engine>
TransaxlemountCrossmemberI
FRONT
Rear roll
stopper
mount
Transaxle
mount
TSB Revision

POWER PLANT MOUNT Specifications/Special Tools/Troubleshooting
SERVICE SPECIFICATIONS
Installation dimension of front roll stopper bracket assembly mm (in.)
Bushing (A) projection mm (in.)
Crossmember Bushing (B) projection mm (in.)
Bushing
projection mm (in.)
TOOL
Symptom Probable cause
Excessive engine Cracked rubber parts of insulator Remedy
Replace
wobble or vibration
(with engine in normal
condition) Insufficiently tightened parts Retighten
Abnormal noise
Insufficiently tightened parts Retighten
TSB Revision

32-4P O W E R P L A N T M O U N T
REMOVAL AND INSTALLATION
OperationJack Up the Engine and Transaxle Assembly Until Thereis no Weight on the Engine Mount Bracket Insulator.
Engine (Non-turbo)>
86
63
9871
Removal steps
1. Enaine mount insulator mounting
2. Engine mount bracket 3. Engine mount stopper
Engine sideEngine
mount Engine
mount
stopper
______ .bracket
Engine (Turbo) and Engine>
87 .
,
9871 85
INSTALLATION POINT
ENGINE MOUNT
Align the notches on the stopper with the engine bracket
with the arrow mark facing toward the shown
install the stopper.
,
INSPECTION
lCheck each insulator for cracks or damage.
lCheck each bracket for deformations or damage.
TSB Revision

POWER PLANT MOUNT Transaxle
TRANSAXLE MOUNTING
REMOVAL AND INSTALLATION
and Post-installation OperationlAir Cleaner Assembly Removal and Installationl Battery Removal and Installationl Engine Roll Stopper, Centermember AssemblyRemoval and Installation (Refer to
Engine (Non-turbo)> Engine (Turbo) and Engine>
69 Nm3.
NOTEl
1. Battery bracket
2. Evaporative emission canister
Engine (Turbo)> (Refer to
GROUP 17 Evaporative Emission
Control System)
3. Evaporative emission canister hold- er assembly
Engine (Turbo)>
(Refer to GROUP 17 Evapora-
tive Emission Control System) 4. Battery stay
5.
mount insulator mounting
6. Transaxle mount bracket
7. Transaxle mount stopper
REMOVAL SERVICE POINT
TRANSAXLE MOUNT BRACKET REMOVAL
Slightly lower the transaxle, and then remove the t ransaxle
mount bracket.
TSBRevision

POWEREngine Roll
,
ENGINE ROLL STOPPER, CENTERMEMBER
REMOVAL AND INSTALLATION
44 Nm
Engine (Non-turbo)>
32
88 Nm64
1. Rear roll stopper bracket assembly
2. Front roll stopper bracket assembly
Centermember removal steps
3. Bolts
4. Stay Engine (Turbo) and Engine 5. Centermember assembly
Indicates parts should be temporarily and then fully tightened with the vehicle on the groundin the unladen
TSBRevisionI

32-8POWER PLANT MOUNT Engine Roll. Stopper,
(1) Set the special tool to the to the engine
assembly.
(2) Remove the centermember assembly.
INSTALLATION POINT
FRONT
If the dimension shown in the illustration the standard
value when the weight of the engine is the body, replace
the front roll stopper bracket
Standard value (A):
I.
INSPECTION
l each insulator for cracks damage.
l Check each bracket for
damage.
,
.
,
,
Revision

POWER PLANT MOUNT Crossmember
CROSSMEMBER
REMOVAL AND INSTALLATION
and Post Installation Operation(1) Power Steering Fluid Draining and Supplying(Refer to GROUP On-vehicle Service.)
(2) Centermember Removal and Instrallation
(Refer to (3) Stay Removal and Installation (Refer to Compression lower and lateral lower armassemblies.)(4)Front Exhaust Pipe Removal and Installation (Referto GROUP 15 Exhaust Pipe and Muffler.)
(5) Stabilizer Bar Removal and Installation (Refer to GROUP
Stabilizer Bar.)(6)Steering Gear Box Removal and Installation (Referto GROUP Power Steering Gear Box.)
Engine (Non-turbo)>
44Nm32
Engine (Turbo) and Engine>
44Nm3 2
88Nm84
88
00003506
Crossmember removal steps
1. Lateral lower arm mounting bolt
2. Compression lower arm
mounting bolts3. Shock absorber lowermounting bolt4. Rear roll stopper bracketmounting bolts5. Bushing retaining self-locking nut
6. Lower plate
7. Bushing retaining self-locking nut
8. Lower plate
Bushing retaining bolt10. Crossmember11. Stopper 12. Stopper A
13. Bushing
14. Bushing A
15. Bushing
Cautionl Indicates parts which should be temporarily tighten ed,
and then fully tightened with the vehicle on the gr ound
in the unladen condition.
TSB Revision