Mazda CX 7. Manual — part 187
DIFFERENTIAL
03-14–9
03-14
Ring Gear Disassembly Note
1. Secure the gear case in a vice and remove the
bolts.
2. Lightly tap around the ring gear using a plastic
hammer to remove the ring gear from the gear
case.
Side Bearing Inner Race Disassembly Note
Note
• Mark or otherwise distinguish between the left and right side bearings so that they are not mixed up at the
time of reassembly.
1. Remove the side bearing inner races from the
gear case using the SST and a press.
End Of Sie
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49 0839 425C
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DIFFERENTIAL
03-14–10
REAR DIFFERENTIAL ASSEMBLY
id031400800600
Warning
• The engine stand is equipped with a self-lock mechanism, however, if the rear differential is in a
tilted condition, the self-lock mechanism could become inoperative. If the rear differential
unexpectedly rotates it could cause injury, therefore do not maintain the rear differential in a tilted
condition. When turning the rear differential, grasp the rotation handle firmly.
Note
• Clean away the old sealant before applying the new sealant.
• Install the rear cover within 10 minutes after applying sealant.
• Allow the sealant to set at least 30 minutes after installation before filling the differential with the specified
oil.
1. Assemble in the order indicated in the table.
.
SST
SST
SST
SST
SST
SST
SST
9
8
3
3
1
2
2
10
10
19
14
13
11
21
12
20
20
R
SST
R
R
R
SST
R
R
R
SEALANT
SEALANT
OIL
OIL
R
7
5
4
4
6
18
17
15
16
25
24
23
23
22
26
26
240—755
{24.5—76.9, 177—556}
12.7—17.3
{1.3—1.7,
9.4—12.7}
68.6—83.3
{9.0—8.49,
50.6—61.4}
15.7—22.6
{1.6—2.3,
11.6—16.6}
38—51
{3.9—6.2,
28.1—37.6}
38—51
{3.9—6.2,
28.1—37.6}
N·m {kgf·m, ft·lbf}
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1
Gear case
2
Side bearing inner race
(See 03-14-11 Side Bearing Inner Race Assembly
Note)
3
Thrust washer
(See 03-14-11 Thrust washer Assembly Note)
4
Side gear
5
Pinion gear
6
Pinion shaft
7
Knock pin
8
Ring gear
(See 03-14-12 Ring Gear Assembly Note)
9
Differential carrier
10
Bearing outer race
(See 03-14-12 Bearing Outer Race Assembly Note)
11
Spacer
(See 03-14-13 Spacer, Bearing Inner Race
Assembly Note)
12
Bearing inner race (rear bearing)
(See 03-14-13 Spacer, Bearing Inner Race
Assembly Note)
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DIFFERENTIAL
03-14–11
03-14
Side Bearing Inner Race Assembly Note
Caution
• Do not mix up the left and right side bearing inner races.
1. Press the side bearing inner races into the gear
case using the SSTs.
Substitution SST
• 49 G030 338
Outer diameter: 43— 45 mm {1.70— 1.77 in}
Inner diameter: 41 mm {1.61 in} or more
Inner depth: 3 mm {0.12 in} or more
Thrust washer Assembly Note
1. Assemble the side gears, thrust washers and pinion gears to the gear case, then assemble the knock pin.
2. After assembling the knock pin, make a crimp so that the pin will not come out of the gear case.
3. Set a dial gauge to the pinion gear as indicated in
the figure.
4. Secure one of the side gears.
5. Move the pinion gear and measure the backlash
at the end of the pinion gear.
• If the backlash exceeds the standard, use the
thrust washers to adjust.
Standard backlash
0.1 mm {0.004 in} or less
Thrust washer thickness
13
Bearing inner race (front bearing)
(See 03-14-13 Spacer, Bearing Inner Race
Assembly Note)
14
Collapsible spacer
15
Drive pinion
16
Locknut
(See 03-14-15 Locknut Assembly Note)
17
Washer
18
Adjusting shim (L)
(See 03-14-15 Adjusting Shim Assembly Note)
19
Spacer
20
Side bearing outer race
21
Rear differential component
22
Adjusting shim (R)
23
Bearing cap
(See 03-14-17 Bearing Cap Assembly Note)
24
Rear cover
(See 03-14-18 Rear Cover Assembly Note)
25
Differential oil temperature sensor
26
Oil seal
(See 03-14-18 Oil Seal Assembly Note)
49 F401 331
49 G030 338
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Identification mark
Thickness
0
2.0 mm {0.079 in}
1
2.1 mm {0.083 in}
2
2.2 mm {0.086 in}
05
2.05 mm {0.081 in}
15
2.15 mm {0.084 in}
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DIFFERENTIAL
03-14–12
Ring Gear Assembly Note
Caution
• The differential gear and ring gear could be damaged if the ring gear is installed with old thread-
locking compound remaining on the bolt threads. Before installing the ring gear, completely
remove the old thread-locking compound from the bolt threads.
1. Apply a small amount of thread-locking
compound to each of points A on the back of the
ring gear, and bolt thread areas B (around the
entire ring).
Application amount
Back of ring gear:
Approx. 0.4 ml {0.4 cc, 0.02 cu in}
Ring gear bolt thread points:
Approx. 0.4 ml {0.4 cc, 0.02 cu in}
(0.04 ml {0.04 cc, 0.002 cu in} to each
point)
2. Align the marks placed on the ring gear case at
the time of disassembly and tighten the bolts in
diagonal order.
Tightening torque
68.6— 83.3 N·m {7.00— 8.49 kgf·m, 50.6—
61.4 ft·lbf}
Bearing Outer Race Assembly Note
1. Press in the bearing outer race using the SSTs
and a press.
Substitution SST
• 49 F027 007
Outer diameter: 70.8— 71.0 mm {2.78— 2.79
in}
Plate thickness: 1 mm {0.04 in} or more
• 49 F027 004
Outer diameter: 78.5— 79.0 mm {3.10— 3.11
in}
Plate thickness: 1 mm {0.04 in} or more
A
B
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49 M005 797
49 F027 007
49 F027 004
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