1987 MAZDA 626 oil

7A REMOVAL
1. Remove the battery and battery carrier.
2. Disconnect the main fuse block. (Fl)
3. Disconnect the distributor lead.
4. Remove the air cleaner assembly.
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5. Remove the vacuum hose, the intercooler hose
(RF-CX) and the electric fan. (RF-N and RF-CX)
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8. Remove the front wheels.
9. Remove the splash shields.
10. Drain the transaxle oil.
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7A—14

REMOVAL 7A
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11. Disconnect the clutch release cylinder.
12. Disconnect the tie-rod ends using SST.
13. Remove the stabilizer bar control links.
14. Remove the bolts and nuts at the left and right low-
er arm bolt joints.
15. Pull the lower arms downward to separate them
from the knuckles.
Note
Do not damage the ball-joint dust boots.
16. Separate the left driveshaft from the transaxle by
prying with a bar inserted between the shaft and
the case.
Note
Do not damage the oil seal.
17. Remove the joint shaft bracket.
18. Separate the right driveshaft together with the joint
shaft in the same manner.
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7 A—15

7A DISASSEMBLY
STEP 2
Disassemble in the sequence shown in the figure referring to disassembly note for the specially marked
parts.
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1. Bearing outer race 15. Selector 28. Roll pin
2. Oil seal 16. Oil seal 29. Reverse lever shaft
3. Bearing outer race 17. Bolt 30. Reverse lever
4. Funnel 18. Bleeder cover 31. Drain plug and washer
5. Bolts 19. Bleeder 32. Neutral switch and gasket
6. Guide plate 20. Bolt 33. Bearing outer race
7. Pipe 21. Speedometer driven gear 34. Diaphragm spring
8. Bolt assembly 35. Adjust shim
9. Change arm 22. O-ring 36. Bearing outer race
10. Roll pin 23. Roll pin 37. Adjust shim
11. Change rod 24. Driven gear 38. Oil seal
12. Boot 25. Gear case 39. Back-up light switch
13. Spring 26. Oil seal 40. Oil passage
14. Reverse gate 27. Bearing outer race
7A-20

7A INSPECTION
INSPECTION
Check the following parts, and replace if necessary.
1st, 2nd, 3rd, 4th, and 5th gears
1. Worn or damaged synchronizer cone.
2. Worn or damaged hub sleeve coupling.
3. Worn or damaged teeth.
4. Worn or damaged inner surface or end surface of
gears.
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Primary Shaft Gear and Primary Gear
1. Worn teeth
2. Primary shaft gear run-out
Run-out: 0.05 mm (0.002 in) max.
Note
If the shaft gear is replaced, adjust the bear-
ing preload. (Refer to page 7A—37)
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Secondary Shaft Gear
1. Worn or damaged gear contact surface.
2. Worn or damaged splines.
3. Worn teeth.
4. Clogged oil passage.
5. Secondary shaft gear run-out.
Standard run-out: 0.015 mm (0.0006 in)
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6. Oil clearance between secondary gear shaft and
gears.
Standard: 0.03—0.08 mm (0.001—0.003 in)
Caution
If the shaft gear is replaced, adjust the bear-
ing preload.
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7A-26

7A INSPECTION
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Reverse Idle Gear
1. Worn or damaged bushing.
2. Worn or damaged teeth.
3. Worn or damaged release lever coupling groove.
4. Clearance between sleeve and reverse lever.
Standard: 0.095—0.318 mm (0.004—0.013 in)
Maximum: 0.5 mm (0.020 in)
Clutch Housing, Transaxle Case, Rear Cover,
and Differential Gear Case
Cracks or damage.
Caution
If the clutch housing, transaxle case, or
differential gear case is replaced, adjust the
bearing preload of the shaft gears and the
preload of the differential side bearings.
Bearing
1. Roughness or noise while turning
2. Worn or damaged outer race or rollers
Caution
a) Replace the bearing, the outer race, and the
inner race as a unit.
b)lf the bearing is replaced, adjust the
preload.
Speedometer Driven Gear Assembly
1. Worn or damaged teeth.
2. Worn or damaged O-ring.
Ring Gear Speedometer Drive Gear
Worn or damaged teeth.
Oil Seal
Damaged or worn lip.
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7A—28

ASSEMBLY 7 A
ASSEMBLY
Note
a) Wash all parts.
b) Apply oil to all friction surfaces.
c) Use new roll pins and retaining rings.
STEP 1 (DIFFERENTIAL)
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Assembly
1. Install the speedometer drive gear and the new
bearing inner race with the SST.
Note
Press to 19,620 N (2,000 kg, 4,400 lb).
2. Install the new bearing inner race with the SST.
Note
Press to 19,620 N (2,000 kg, 4,400 lb).
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7A-29

7A ASSEMBLY
49 F401 331
•
49 F401 331
•
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"Oil groove
(four places)
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ZJJ
49 F40I 336 B
49 0636 145
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Primary Shaft
1. Install the new bearing inner race with the SST.
Note Press to 19,620 N (2,000 kg, 4,400 lb).
2. Install the 3rd gear, synchronizer ring, and clutch
hub assembly with the SST. (Refer to page
7A—33)
Note
a) Press to 19,620 N (2,000 kg, 4,400 lb).
b) Align the synchronizer ring groove and
clutch housing hub key when installing.
3. Install the retaining ring.
4. Install the synchronizer ring, 4nd gear, and bear-
ing inner race with the SST.
Note
Press to 19,620 N (2,000 kg, 4,400 lb).
5. Install both shift forks and the interlock sleeve, as
in the figure.
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7A-32

ASSEMBLY 7A
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Assembly
1. Install the neutral switch.
2. Install the drain plug.
3. Install the back-up lamp switch.
4. Install the new oil seals with the SST.
5. Install the differential adjust shim(s) and the bear-
ing outer race with a suitable pipe.
6. Install the adjust shims, diaphragm springs, fun-
nel, and bearing outer races.
Note
Install the diaphragm spring as shown in the
figure.
7. Install the bearing outer races with a suitable pipe.
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7A—41