MITSUBISHI SPYDER 1990 Service Repair Manual

REAR AXLE Knuckle
REMOVAL AND INSTALLATION
27100300055
Pre-removal and Post-installation OperationlRear Wheel Speed sensor Removal and Installation 85-99
71‘2
Removal steps
1. Trailing arm connection
2. Lower arm connection
3. Toe control arm ball joint and
knuckle connection
4. Shock absorber connection
5. Upper arm connection
6. Knuckle
Caution
7. Hub cap without
l : Indicates parts which should be temporarily
and then fully tightened with the vehicle
on the ground in the unladen condition.
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REAR AXLE Knuckle
REMOVAL SERVICE POINT
,
TOE CONTROL BALL AND
Caution,1.Use the special to
nut. Only loosen the do the
ball joint.
2. the special tool with a
it from coming off.
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REAR AXLE General Information.
In the rear axle structure, the unit bearing is
fitted to the rear hub and bolted to the knuckle.
Also, the unit bearing utilizes a double row angula r
contact ball bearing.
The drive shaft has a T.J.
on the differential side and a B.J. constant-veloci ty
joint on the wheel side.
In vehicles with a
rotor for detecting the is
on the outer ring of the drive shaft B.J., and a
speed sensor is located on the knuckle.
The differential carrier provides elastic support b y,
means of a bushing. In addition, the VCU-type LSD
has been adopted in some models.
Conventional differ- Conventional differ- Limited s lip Limited slip differ-
ential
entialential (VCU type)
Reduction gear type Hypoid gearHypoid gear Hypoid gearH y p o i dg e a r
Reduction ratio3.545
3.307
DifferentialSide gearStraight bevel Straight bevelStraight bevelStraight bevel
gear type
,
ber ofPinion gear Straight bevelStraight bevel Straight bevelStraight bevel
gears)
Number ofDrive gear 39433943
teeth Drive pinion 11
I ‘3 I
Sidegear1414 1616
Pinion gear10 101010
BearingSide7235(2.83 1.38)7235(2.831.38)7235 (2.83 1.38)(outside(2.83 ,
Front6225(2.446225(2.446225(2.4462 25
sideter) mm (in.)7235(2.83 1.38)7235(2.837235 (2.83 1.38)72 35(2.83
NOTE
Denotes the gear (L.H.) which is in a single body with the viscous coupling.
CONSTRUCTION DIAGRAM
rotor with
Differential carrier
Unit bearing
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R E A R
.When replacing with a new bearing (with rust-prevention oil)
.When using a new bearing or when reusing (gear oil application)
Items
Rear differential gear
oil
Quantity
0.85
qt.)
l u b r i c a n t
API classification or higher
T.J. assembly
B.J. assembly 95 (3.35 oz.)
105
(3.70 oz.)
75
(2.65 oz.)
SAE
SAE
Repair kit grease
.
Items
Threaded holes of the drive gear
and adhesives
Vent plug installation surface (to differential
Part No. 4170 or equivalent
ATD Part No. ‘8663 or equivalent
Differential cover installation surface (to gear c arrier). .I

REAR AXLE Special Tools
Preload socket
General service toolPrevention of entry of foreign
objects into the differential
General service tool
Working base adapter
,
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REAR AXLE Tools
seal installer set
lDifferentialside oil..
press-fitting
(Use
Side bearing puller
race removal
Oil seal installer
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REAR AXLE Special Tools
eanng
Side gear holdingtool
Side gear holding tool
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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
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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
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6REAR AXLE Service
REAR AXLE TOTAL BACKLASH
If the vehicle produces a booming sound due
to an of driving system, measure the rear
total backlash by the following procedures to see if the
carrier assembly requires removal.
1. Place the gearshift lever in theneutral position, apply
the parking brake and
up the vehicle.
Mating marks2.Manually turn the propeller. shaft as far as it
will go and make mating marks flange
dust cover and the differential carrier. ,
3.Manually turn the propeller shaft counterclockwise as far
as it will go and measure the of the mating!
marks.
Limit: 5 mm in.)
4.If the backlash exceeds’ the limit, remove the differential
carrier assembly (Refer to and adjust the back-
lash (Refer to
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GEAR OIL LEVEL
Remove the filler plug, check, the level. .
2.The oil is sufficient if hole.
Specified gear oil: ,
API classification
NOTEO v e r S A E
Under SAE