1991 MITSUBISHI ECLIPSE check oil

3-8REAR AXLE - Service Adjustment Procedures
09D031
llA0065SERVICE ADJUSTMENT PROCEDURES
REAR AXLE TOTAL BACKLASH CHECK
N03FAAF
If the vehicle vibrates and produces a booming sound due to animbalance of the driving system, measure the rear axle total
backlash by the following procedures to see if the differential
carrier assembly required removal.
(1) Place the gearshift lever in the neutral position, apply the
parking brake and jack up the vehicle.
(2) Manually turn the propeller shaft clockwise as far as it will
go and make mating marks on the companion flange dust
cover and the differential carrier.
(3) Manually turn the propeller shaft counterclockwise as far as
it will go and measure the movement of the mating marks.Limit: 5 mm
(.2 in.)
(4) If the backlash exceeds the limit, remove the differential
carrier assembly and adjust the backlash. (Refer to P.3-20.)
GEAR OIL LEVEL CHECKN03FCAA1. Remove the filler plug, and check the oil level.
2. The oil level is sufficient if it reaches the filler plug hole.
Specified gear oil:
MOPAR Hypoid Gear Oil API classification
GL-5 or
higher
[0.7 liter (0.74 qts.)]
NOTEAbove
-23°C (-10°F): SAE 90, 85W-90, 8OW-90
From
-34°C (-30°F) to -23°C (-10°F): SAE 8OW,
8OW-90Below
-34°C (-30°F): SAE 75WREAR WHEEL BEARING END PLAY
CHECKN03FEAE
(1) Support the vehicle on axle stands positioned at the
specified locations and remove the rear wheel.
(2) Separate the parking brake cable from the rear brake.
(3) Remove the caliper assembly and brake disc.
(4) Place a dial gauge as shown in the figure, and then
measure the play when the axle shaft is moved in the axial
direction.Limit: 0.8 mm
(.031 in.)
(5) If the play exceeds the limit, check the tightening torque of
the companion flange of the axle shaft; if it is correct,
replace the wheel bearing.

12A0611
REAR AXLE - Axle Shaft3-116. REMOVAL OF SELF-LOCKING NUT
With the special tool, secure the axle shaft and remove thecompanion flange self-locking nut.
9. REMOVAL OF AXLE SHAFT ASSEMBLY
With the special tool, remove the axle shaft from the
trailing arm.
10. REMOVAL OF REAR ROTOR Remove the rear rotor from the axle shaft.
111. REMOVAL OF OUTER BEARING/lZ. DUST COVER
With the special tool, remove the outer bearing and dust
cover concurrently from the axle shaft.
115. REMOVAL OF OIL SEAL/lG. INNER BEARING
MB990560
/Trailing arm
/
/MB99092811
A0038
With the special tool, remove the inner bearing and oil sealfrom the trailing arm.
INSPECTIONNOBHCAFl Check the companion flange for wear or damage.
l Check the dust cover for deformation or damage.
l Check the wheel bearings for burning or discoloration.
l Check the wheel bearing for unsmooth rotation.
l Check the axle shaft for cracking, wear or damage.
l Check oil seal for cracking or damage.

3-‘14REAR AXLE - Drive Shaft
REMOVAL AND INSTALLATION55-65
N.m40-47 ft.lbs.
Removal steps
1. Bolt+e l 42. Drive shaft3. Circlip
l * 4. Oil seal
NOTE(1) Reverse the removal procedures to reinstall.(2) l * : Refer to “Service Points of Removal”.<-,(3) ii : Refer to “Service Points of Installation”.
(4) q : Non-reusable partsllA0324
SERVICE POINTS OF REMOVALNO3JEAD2. REMOVAL OF DRIVE SHAFT
Using a tire lever, etc. remove the drive shaft from the
differential carrier.
INSPECTIONNOJJHAA
lCheck the drive shaft boots for damage or deterioration.
lCheck the ball joints (B.J. and D.O.J.) for excessive play orcheck operation.
l Check the drive shaft spline for wear or damage.
SERVICE POINTS OF INSTALLATIONN03JCAE4. INSTALLATION OF OIL SEAL
(1)If the oil seal is to be replaced because of damage, driveit in by using the special tool.
(2) Apply the specified grease to the oil seal lip.
Specified grease:MOPAR Multi-Mileage Lubricant
Part No.2525035 or equivalant
,-
-
llK110llK610

REAR AXLE -Differential Carrier3-25
Mating marks
llD237
llY175
llY17619. REMOVAL OF DRIVE PINION
) Make the mating marks to the drive pinion and
companion flange.
NOTEMating marks should not be made to the contact
surfaces of companion flange and propeller shaft.
!) Drive out the drive pinion together with the drive pinion
spacer and drive pinion front shims.
23. REMOVAL OF DRIVE PINION REAR BEARING INNER
RACE
Pull out the drive pinion rear bearing inner race by using thespecial tools.
26. REMOVAL OF OIL SEAL/27. DRIVE PINION FRONT
BEARINGDrive out the drive pinion front bearing from the gear
carrier.28. REMOVAL OF DRIVE PINION REAR BEARING OUTER
RACEDrive out the drive pinion rear bearing outer race from the
gear carrier.
INSPECTIONN03lHADl Check the companion flange for wear or damage.
l Check the oil seal for wear or deterioration.
l Check the bearings for wear or discoloration.
l Check the gear carrier for cracks.
lCheck the drive pinion and drive gear for wear or cracks.
lCheck the side gears, pinion gears and pinion shaft for wearor damage.
l Check the side gear spline for wear or damage.

REAR AXLE - Differential Carrier3-27
llK010
71
llY181llY182
.MB990836(MB990835)
llrm3
V223
SERVICE POINTS OF REASSEMBLYNOJUBD2. PRESS FITTING OF OIL SEAL
(1) With the special tool, press fit the oil seal until it is flushwith the end of the gear carrier.
(2) Apply multipurpose grease to the oil seal lip.
Specified grease: MOPAR Multi-Mileage Lubricant
Part No.2525035 or equivalent
3. lNSTALLATlON OF DRIVE PINION REAR BEARING
OUTER RACE/4. DRIVE PINION FRONT BEARING
OUTER RACE
Press-fit the drive pinion rear and front bearing outer racesinto the gear carrier by using the special tools.
CautionBe careful not to press in the outer race at an angle.
l ADJUSTMENT OF PINION HEIGHT
Adjust the drive pinion height by the following procedures:
(1) Install special tools and drive pinion front and rear
bearing inner races on the gear carrier in the sequenceshown in the illustration.
NOTEApply a thin coat of multipurpose grease to the mating
face of the washer of the special tool.
Specified grease: MOPAR Multi-Mileage Lubricant
Part No.2525035 or equivalent
(2) Tighten the handle of the special tool until the standardvalue of drive pinion turning torque is obtained.
(3) Measure the drive pinion turning torque (without the oil
seal).Standard value:
Rotation torque
(starting friction torque)Nm
(in.lbs.)
I
NoneNew(with rust-I0.9-1.2 (8-10)prevention oil)New/reused Oil application
NOTE
0.4-0.5 (3-4)(I) Gradually tighten the nut of the special tool while
checking the drive pinion turning torque.
(2) Because the special tool cannot be turned one turn, turnit several times within the range that it can be turned;then, after fitting to the bearing, measure the rotation
torque.

REAR AXLE - Differential Carrier3-29
Y223(5) Remove the companion flange and drive pinion once
again.Drive the oil seal into the gear carrier front lip by using
the special tool.
Apply multipurpose grease to the oil seal lip.
Specified grease: MOPAR Multi-Mileage Lubricant
Part No.2525035 or equivalent
(6) Apply a thin coat of multipurpose grease to the
companion flange contacting surface of the washer
before installing drive pinion assembly.
Specified grease: MOPAR Multi-Mileage Lubricant
Part No.2525035 or equivalent
(7) Install the drive pinion assembly and companion flange
with mating marks properly aligned, and tighten the
companion flange self-locking nut to the specified
torque by using the special tools.
(8)Measure the drive pinion turning torque (with oil seal) toverify that the drive pinion turning torque complies with
the standard value.
Standard value:
Rotation torque
(starting friction torque)Nm
(in.lbs.)
IIIIIf there is a deviation from the standard value, check
whether or not there is incorrect tightening torque of
the companion flange tightening self-lock nut, or incor-
rect fitting of the oil seal.
. ADJUSTMENT OF DIFFERENTIAL GEAR BACKLASH
Adjust the differential gear backlash by the following
procedures:(1) Assemble the side gears, side gear spacers, pinion
gears, and pinion washers into the differential case.
(2) Temporarily install the pinion shaft.
NOTEDo not drive in the lock pin yet.
L-

3-34REAR AXLE - Differential Carrier (Limited Slip Differential)
DIFFERENTIAL CARRIER (LIMITED SLIP DIFFERENTIAL)
DISASSEMBLY AND REASSEMBLYNO31K--
Disassembly steps
1. Screwl + 2. Differential case A+e I)+ 3. Thrust washer (L.H.)4. Viscous unit
llP0127
I)+ 5. Pinion mate washer
M 6. Differential pinion mate
7. Differential pinion shaft
8. Differential side gear
(R.H.)
4+9. Thrust washer (R.H.)
l +
10. Differential case 6Feeler gauge-eeler gauge
\Feeler gauge/
’ IL4l\’IIDifferential sideThrkt washer
aear (riaht)(right)\llPO139
INSPECTION BEFORE DISASSEMBLYNO3IEBA1. CHECKING THE DIFFERENTIAL GEAR BACKLASH
(1) Secure the differential case assembly in a vise so that
the differential side gear (right) is facing upward.
Caution
When securing the vise, be sure not to hold the
differential case assembly too tightly.
(2) Insert a 0.03 mm (.0012 in.) feeler gauge at two places
(diagonally) between differential case
B and the thrust
washer (right).
CautionDo not insert a feeler gauge in the oil groove of
differential case B.

3-36REAR AXLE - Differential Carrier (Limited Slip Differential)Contact surface
with differential
viscous unit
llPO142
Mamaifferential case
BPinion mate
washer
bDifierential7-pinion matellPO134Feeler gauge
Feeler
gaugeFeeler gauge
lifferential gear (right)Thrust washer (right),\llPO130
1(5) Check the
spline part of the viscous unit for stepped
wear or damage, and check the contact surface with
differential case B.
45
(6)Check the side gear (left) of the viscous unit for unusualwear or damage.
SERVICE POINTS OF REASSEMBLYNOOINBE
10. INSTALLATION OF THE DIFFERENTIAL CASE B/2. DIFFERENTIAL CASE A
Align the mating marks of differential cases
B and A, and
assemble the cases.
6. INSTALLATION OF THE DIFFERENTIAL PINION
MATE/5. PINION MATE WASHER
With the washer in the position shown in the figure, install
to the differential pinion shaft, and then install to differentialM.case
B.3. SELECTION OF THE THRUST WASHER (LEFT)
(1) If the differential side gear and pinion mate gear have
been replaced, select the thrust washer (left) by
following the steps below.
@ Wash the differential side gear and pinion mate gear
in unleaded gasoline to remove all oil, grease, etc.
@ Install the previously used thrust washers (being
careful the left and right ones are used at the
correct side), together with the gears, viscous unit,
pinion mate washer and pinion shaft, to differential
cases A and
B, and then, using screws, secure
them temporarily.
@ Secure the differential case assembly in a vise so
that the differential side gear (right) is facing
upward.Caution
When securing in the vise, be sure not to hold the
differential case assembly too tightly.
@I Insert a 0.03 mm LOO12 in.) feeler gauge at two
places (diagonally) between differential case
B and
the thrust washer (right).
CautionDo not insert a feeler gauge in the oil groove of
rsrdifferential case B.