MITSUBISHI SPYDER 1990 Service Repair Manual

AXLE Differential’
REASSEMBLY
<Conventional differential>
Differential gear set
24
Final drive gear set
<Limited slip differential>
Reassembly steps
1. Gear carrier
2. Oil seal3. Drive pinion rear bearing outer race4. Drive pinion front bearing outer race l Pinion height adjustment
5. Drive pinion
6. Drive pinion rear shim (for pinion
height adjustment)7. Drive pinion rear bearing inner race
6. Drive pinion spacer
l Drive pinion preload adjustment
9. Drive pinion front shim (for preload
adjustment)10. Drive pinion assembly11. Drive pinion front bearing inner race
12. Oil 13. Companion flange
14. Washer
15. Self-locking nut
16. Differential case
17. Limited slip differential case assem- bly (Refer to
l Differential gear backlash adjustment differential> 18. Side
spacer
differential>
19. Side differential>20. Pinion washer<Conventional differential>21. Pinion gear differential>22. Pinion shaft<Conventional differential> 23. Lock pin <Conventional differential>
24. Drive gear 25. Side bearing race
26. Side bearing outer race
l
Drive gear backlash adjustment
27. Side bearing
28. Differential case assembly
29. Bearing cap
30. Vent plug
31. Differential cover assembly
NOTEl : Tightening torque with gear oil applied
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<Conventional differential>
2-3 mm in.)
<Limited slip differential
Adhesive: Locking No.
or equivalent ,
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REARAXLE Differential
Front bearingRear bearing1
SERVICE POINTS
(1) With the special fit the oil seal is. flush
with the end of
carrier.
(2)
grease to the lip.
PINION REAR BEARING
RACE/DRIVE PINION FRONT BEARING
RACE
Caution
careful not to press in the’ quter race at
PINION
Adjust the drive pinion height by the following pro cedures:
(1) Apply a thin coat of the grease to the mating
face of the washer of special tool.
(2) ‘Install special tools and drive front and rear bearing,
inner. races on the gear carrier in the sequence sh own
in the illustration.
NOTE
Apply a thin coat of the multipurpose grease to the mating
face of the washer of the special tool.
(3) Gradually’tighten the nut of the special tool checking’
the drive pinion turning torque until the value,
of drive pinion turning torque is
Standard value:’
Bearing Bearing lubrication
classification torque
torque)
N e wNone (with
ventiop oil)
New/reused
Gearoil--application
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Because the special be turned one turn, turn
it ‘several times within the range that it can turned;
then, after fitting to the bearing, measure the rot ation
torque.

REAR AXLE Differential Carrier
Fe gauge
Bearing cap
Al
the side bearing seat thoroughly..
Position. the special tool in the side bearing. se
at of the
gear carrier, and then install the bearing cap.
NOTE
When positioning tool’, be sure cutout
sections of the special ‘tool the. position shown
in the illustration.
And check that the tool is in
the side bearing seat.
.
(6)Use a feeler gauge to measure the clearance
the special tools.
(7) Remove the special tools
(8) Use a micrometer to measure the dimensions’(B)
(C) of the special tools.
(9) Install. the. bearing cap, and then use a gage
and the micrometer to measure the
of the bearing cap as shown in the
the thickness (E) of the drive rear shim
from the following equation, and select the shim th at is’
closest
to this value.
A m m
(11) Fit the selected drive pinion rear shim(s) the drive
and press-fit the drive pinion rear bearing inner
race by using the special tool.
P I N I O N P R E L O A D A D J U S T M E N T
Adjust the drive pinion turning torque by using the , following
procedures:
Fit the drive pinion front shim(s)
spacer and the drive pinion front bearing race.
(2) Tighten the companion flange to the specified ‘ torque, by
u s i n g t h e s p e c i a l t o o l s .
NOTE
Do not install the oil seal.
. .
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REAR AXLE Differential Carrier
or
(3) Measure the drive pinion turning torque (without the
seal) by using the special tools.
Standard value:
BearingBearing lubrication ,
classification
torque) Nm
NewNone (with 0.9 1.2
oil)
New/reused Gear oil application0.4 0.5 (3-4)
(4)If the drive pinion turning torque is not within th e range
of the standard value, adjust the turning torque by replac-
ing the drive pinion front shim(s) or the drive pinion spacer.
NOTE
When selecting the drive pinion front shims, if the number
of shims is large, reduce the number of shims to a minimum
by selecting the drive pinion spacers.
(5) Remove the companion flange and drive pinion on ce
again. Drive the oil
into the gear carrier front lip
by using the special tool. Apply multipurpose greas e to
the oil seal lip.
(6)Apply a thin coat of multipurpose grease to companion
flange contacting surface of the washer and oil sea l con-
tacting surface before installing drive pinion assembly.
(7) Install the drive pinion assembly and companion flange
with mating marks properly aligned, and tighten the com-
panion flange self-locking nut to the specified torque by
using the special tools.
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REAR AXLE Differential Carrier
(8) Measure the drive pinion turning torque (with oil seal)
by using the special tools to verify that the drive pinion
turning torque complies with the standard value.
Standard value:
BearingBearing lubrication Rotation torque
classification (starting friction
torque)
NewNone (with
oil)
New/reusedGear oil application0.5 0.8 (4-5)
there is a deviation from the standard value, chec
k
whether or not there is incorrect tightening torque of the
companion flange tightening self-lock nut, or incor rect
fitting of the oil seal.
DIFFERENTIAL GEAR
differential>
Adjust the differential gear backlash by the follow ing proce-
dures:
(1) Assemble the side gears, side gear spacers, pin ion gears,
and pinion washers into the differential case.
(2) Temporarily install the pinion shaft.
NOTE,
Do not drive in the lock pin yet.,
(3) While locking the side gear with the wedge,. me asure
the differential gear backlash with a
on the’
pinion gear.
NOTE
(1) The measurement should be made for both pinion
gears individually.
(2) Refer to for measurement of slip
differential gear backlash.
Standard value: 0 0.076 mm in.)
Limit: 0.2 mm
in.)
(4) If the differential gear backlash exceeds the l imit, adjust
the backlash by installing thicker side gear spacer s.
(5) Measure the differential gear backlash once aga in, and
confirm that it is within the limit.
NOTE
1. After adjustment, check that is less than
the limit and differential “gear rotates smoothly.
2. When adjustment is impossible,’ replace the side gear
and the pinion gear as a set.
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REAR AXLE Differential Carrier
LOCK PIN INSTALLATION<Conventional differential>
(1) Align the pinion shaft lock pin hole with the ‘ differential
case lock pin hole, and drive in the
pin.
(2) Stake the lock pin with a punch at, two points.
DRIVE GEAR INSTALLATION
(1) Clean the drive gear attaching bolts.
(2) Remove the adhesive adhering to the threaded ho les
of the drive gear by turning
0 and then
clean the threaded holes by applying compressed air .
(3) Apply the specified adhesive to the threaded holes of
the drive gear.
Specified adhesive:
Stud Locking Part No. 4170’ or equivalent
(4) Install the drive gear onto the differential ca se with the
mating marks properly aligned: Tighten the. bolts t o
specified torque 90 Nm (58-65 in a diagonal
sequence.
BEARING INNER RACE .
DRIVE GEAR BACKLASH ADJUSTMENT’
Adjust the drive gear backlash by the procedures:
(1) Install the side bearing spacers,’
are thinner than
those removed, to the side bearing outer races,, an d then
mount the differential case assembly into the
NOTE
Select side bearing spacers with the thickness for’
both the drive pinion side and the drive gear side.
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REAR AXLE Differential
2 0.05 mm in.) Thickness of the spacer on
one side
(2) Push the differential case to ‘one and measure the
clearance between the gear carrier and the bearing.
(3) Measure the thickness the side bearing on
one side, select two pairs of spacers which corresp ond
to that thickness plus one half of the clearance pl us 0.05
mm, and then install one pair each to the drive pin ion
side and the drive gear side.
(4) Install side bearing spacers and differential case as-
sembly, as shown in the illustration;’
the
, .
,.
(5) Tap the side bearing spacers with a brass bar t o fit them
to the side bearing outer race.
(6)Align the mating marks on the gear carrier and the bearing’:
cap, and then tighten the bearing cap.
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REAR AXLE Differential
If backlash is too small
spacer spacer
If backlash is too large
With the drive in place, measure’ the
gear backlash with a dial the drive gear.
Measure at four points or more on
of the drive gear.Standard value: 0.11
0.16 mm In.)
(8) Change the side bearing spacers as illustrated, and then
adjust the drive gear backlash between the drive ge ar
and the drive pinion.
NOTE
When increasing the number of bearing spacers,
use the same number for each, and as few
(9) Check the drive gear and drive pinion for tooth contact;
If poor contact is evident, make adjustment. (Refer to
(lO)Measure the drive gear at the shoulder on the
reverse side of the drive gear.
L i m i t : 0 . 0 5 m m
(11) If the gear exceeds limit, reinstall by
changing the phase of the drive gear and differenti al case,
and remeasure.
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REAR AXLE <AWL)> Assembly, . . .
Feeler
Feelergauge
gear (R.H.) washer .
A
INSPECTION BEFORE
DIFFERENTIAL
(1) Hold the limited a
the differential side
Caution
When the limited slip in
vice, do not tighten
(2)Install two 0.03 ih.)
between the differential case
Caution
Do not insert the feeler
i n t h e d i f f e r e n t i a l
.
. .
I the special in the splined of the
tial’ side gear (R.H.) and make the side gear
(R.H.) turns.
the feeler gauges with in.) feeler:
“gauges..
the special tool in the
gear (R.H.) and make gear’
(R.H.) does not turn.,,
Standard value:
mm in.)
NOTE
The differential gear backlash is normal if the side gear
clearance in the direction of thrust is within the standard
value.
(6) If the side gear clearance in the direction of thrust
not within the standard value, remove the differential case
(A) and adjust by means of thrust washer (L.H.).
Thrust washer (L.H.)
Part No.Thickness mm (in.)
0.8
0.9
1
1.1
1.15
1.2
1.25
1.3
I1.35
1.4
1.5
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