Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 870

REAR AXLE -
Friction disc
A
A
Friction plate
Friction plate
B
Pressure ring
D
I
H
E
D
K
G L I
Differential Carrier <Vehicles with mechanical LSD>
INSPECTION
DIFFERENTIAL CASE INTERNAL PARTS CONTACT/
B
SLIDING SURFACE CHECK
1. Clean the disassembled parts with cleaning oil and dry
2. Check each plate, disc, and pressure ring for the following:
C
3. Check the following parts for contact and siding surfaces
M
F
E
D
J
G
F
K
J
them with compressed air.
A. Friction and sliding surfaces of friction discs, friction
plates, and spring plates.
Replace a defective part with heat discoloration and
excessive wear with a new one, as it degrades locking
performance.
NOTE
If the inner periphery of the friction face shows traces
of harsh contact, it is because of the spring tension
of each plate, disc and other part. Do not confuse
this with abnormal wear.
B. Inner periphery and outer periphery protrusions of
friction discs, friction plates, and spring plates.
Replace a cracked or damaged part with a new one.
C. Friction and sliding surfaces between pressure rings
and friction discs.
Grind a dented or scratched part with oil stone and
then lap and correct with a compound on a surface
plate.
NOTE
If the inner periphery of the friction face shows traces
of harsh contact, it is because of the spring tension
of each plate, disc and other part. Do not confuse
this with abnormal wear.
(D to M) and correct burrs and dents with oil stone.
D: Sliding surfaces of side gear and case
E: Contacting surfaces of differential case and spring
plate
F: Contacting surfaces of pressure ring and differential
case inner face
G: Sliding surfaces of pressure ring hole and side gear
H: Protrusions on outer periphery of pressure ring
I: Pressure ring inner surface and differential pinion
gear spherical surface
J: Pressure ring V-groove and pinion shaft V
K: Sliding surfaces of pinion shaft and differential pinion
gear hole
L: Side gear grooves on outer periphery
M: Slits in inner periphery of differential
27B-53