oil MAZDA 626 1987 Workshop Manual

7B INSPECTION AND REPAIR
86U07B-186
86U07B-187
11. Install the oil pump cover to the oil pump body.
Tighten the bolts in sequence.
Tightening torque:
8—11 Nm (82—112 cm-kg, 71—97 in-lb)
12. Install the oil pump shaft and check for smooth oil
pump operation.
13. Install the seal rings.
14. Apply petroleum jelly to the bearing race
to
secure
it to the oil pump cover; then install it on the oil
pump cover.
Bearing race outer diameter:
88.0 mm (3.46 in)
86U07B-188
7B—112

INSPECTION AND REPAIR 7B
3. Remove one end of the snap ring from the groove
with snap ring pliers.
86U07B-194
4. Remove the SST from the reverse and forward
drum.
5. Remove the snap ring with a screw driver.
86U07B-195
6. Place the reverse and forward drum on the oil
pump.
7. Remove the reverse piston by applying com-
pressed air through the fluid passage.
86U07B-19G
86U07B-197
Inspection
Check the following and repair or replace any faulty
parts.
1. Drive and driven plates for damage or wear
Drive plate thickness
Standard: 1.6 mm (0.063 in)
Minimum: 1.4 mm (0.055 in)
2. Clutch piston for damage or cracks
3. Clutch drum for damage or deformation
4. Seal contact area for damage
5. Check ball for leaking sticking
6. Broken or worn snap ring
7. Broken or weakened spring
7B—115

INSPECTION AND REPAIR 7B
6. Check for the clutch operation as follows.
(1) Set the clutch assembly onto the oil pump.
(2) Check the clutch operation by applying com-
pressed air through the fluid passages as
shown.
Applied air pressure:
392 kPa (4.0 kg/cm2, 57 psi)
86U07B-217
(3) Pour in ATF so that the reverse piston, coast-
ing clutch drum, and coasting clutch piston are
fully submerged.
86U07B-218
(4) Check that no bubbles come from between the
piston and drum seal when applying com-
pressed air through the fluid passages as
shown.
Caution
The compressed air must be under 392 kPa
(4.0 kg/cm2, 57 psi), and should not applied
for over 3 seconds.
86U07B-219
7. Apply petroleum jelly to the thrust bearings to se-
cure them; then install them on both sides of the
reverse and forward drum.
Thrust bearing outer diameter
Oil pump side: 86.0 mm (3.39 in)
Small sun gear and one-way clutch side:
56.1 mm (2.21 in)
86U07B-220
7B-121

INSPECTION AND REPAIR 7B
2-4 BRAKE BAND
Inspection
Check the following and replace if necessary.
1. Damaged or worn 2-4 brake band
86U07B-261
BAND SERVO
Inspection
Check the following and replace any faulty parts.
1. Damaged or worn piston
2. Weakened return spring
Free length of spring:
G4A-EL: 43.25 mm (1.703 in)
G4A-HL: FE engine 42.0 mm (1.654 in)
F8 engine 43.25 mm (1.703 in)
76G07B-140
OTHER INSPECTION
Check the following and replace any faulty parts.
1. Damaged or worn output shell
2. Damaged or worn internal gear
3. Damaged or worn turbine shaft
4. Damaged or worn oil pump shaft
5. Damaged or worn anchor strut and shaft
86U07B-263
6. Damaged or cracked valve body cover
7. Damaged or cracked oil pan
8. Damaged or clogged oil strainer
86U07B-264
7B—135

INSPECTION AND REPAIR 7B
Components II
Main and rear control body
®
86U07B-266
1. Premain/main rear gasket
2. Main control body
3. Main/rear front gasket
4. Rear separator
5. Main/rear rear gasket
6. Rear control body
7. 3-4 solenoid valve
8. Lock-up solenoid valve
9. Bolts
Disassembly of Control Valve Body
1. Remove the 3-4 solenoid valve and lock-up sole-
noid valve.
2. Remove the O-rings and oil strainers.
86U07B-267
7B—137

7B INSPECTION AND REPAIR
3. Remove the 1-2 solenoid valve and 2-3 solenoid
valve and wire harness.
4. Remove the O-rings and oil strainers.
86U07B-268
5. Remove the front indicated bolts and pull out the
front control body with premain separator as a unit.
86U07B-269
86U07B-270
7. Remove the orifice check valve (<£0.8 mm, 0.071
in) and spring from the premain control body.
76G07B-142
7B—138

7B INSPECTION AND REPAIR
Inspection
Check the following and replace any faulty parts.
1. Damaged or worn valves
2. Damaged oil passage
3. Cracked or damaged valve body
4. Operation of each valve
5. Weakened spring
Spring

Spring name Outer dia.
mm
(in) Free length
mm
(in) Wire dia.
mm (in)
Spring color
1-2 accumulator small spring 11.0 (0.433) 88.1 (3.348) 1.4 (0.055) Gray
1-2 accumulator large spring 16.0 (0.630) 78.0 (3.071) 2.0 (0.079) Blue
Bypass, Servo control spring 5.0 (0.197) 33.4 (1.315) 0.55 (0.022) Maroon
2-3 timing spring 8.3 (0.327) 26.5 (1.043) 0.8 (0.031)
—

N-R accumulator rear spring 11.1 (0.437) 62.0 (2.441) 1.2 (0.047) Light green
N-D accumulator front spring 9.8 (0.386) 52.9 (2.083) 1.0 (0.039) Brown
Coasting bypass spring 5.8 (0.228) 37.7 (1.484) 0.6 (0.024) Dark blue
3-2 timing spring 8.2 (0.323) 28.6 (1.126) 0.8 (0.031) Red
3-2 capacity spring 5.4 (0.213) 30.6 (1.205) 0.5 (0.020) White
Throttle relief ball spring 6.6 (0.260) 21.6 (0.850) 0.8 (0.031)
—
76G07B-151
Assembly
1. Install the 3-2 capacity valve, 3-2 capacity spring,
and stopper plug; then install the stopper pin.
2. Install the 3-2 timing valve, the 3-2 timing spring,
and retainer.
86U07B-280
3. Install the coasting bypass plug, coasting bypass
valve and coasting bypass spring.
4. Apply ATF to the O-rings, and install them to the
piston; then insert the N-R accumulator rear spring
and N-R accumulator piston.
5. Apply ATF to the O-rings, and install them to the
piston; then insert the N-D accumulator piston and
N-D accumulator front spring.
76G07B-152
7B—142

INSPECTION AND REPAIR 7B
Inspection
Check the following and replace any faulty parts.
1. Damaged or worn valves
2. Damaged oil passage
3. Cracked or damaged valve body
4. Operation of each valve
5. Weakened spring
Spring

Spring name Outer dia.
mm
(in) Free length
mm (in)
Wire dia.
mm
(in) Spring color
Pressure modifier spring 8.3 (0.327) 26.5 (1.043) 0.8 (0.031)
—

Low reducing spring 8.7 (0.343) 38.3 (1.508) 0.9 (0.035) Black
1-2 shift spring 8.7 (0.343) 41.3 (1.626) 1.0 (0.039) Yellow
2-3, 3-4 shift spring 7.4 (0.291) 36.6 (1.441) 0.8 (0.031) Gray
Throttle backup spring 9.65 (0.380) 26.9 (1.059) 0.55 (0.022) Red
Throttle modulator spring 6.3 (0.248) 47.9 (1.886) 0.8 (0.031)
—

Throttle assist spring 5.15 (0.203) 32.3 (1.272) 0.55 (0.022) Dark green
Throttle spring 5.4 (0.213) 47.2 (1.858) 0.8 (0.031) Pink
Converter relief ball spring 6.9 (0.272) 24.1 (0.949) 0.9 (0.035) Maroon
Orifice check valve spring 5.0 (0.197) 12.5 (0.492) 0.23 (0.009)
—
76G07B-219
]
Assembly
1. Install the throttle adjust plug, throttle assist spring,
throttle valve, and throttle plug assembly.
86U07B-288
Caution
Install the throttle plug assembly with the
groove aligned with the bolt hole.
86U07B-289
7B-145

7B INSPECTION AND REPAIR
Inspection
Check the following and replace any faulty parts.
1. Damaged or worn valves
2. Damaged oil passage
3. Cracked or damaged valve body
4. Operation of each valve
5. Weakened spring
Spring

Spring name Outer dia.
mm
(in) Free length
mm
(in) Wire dia.
mm (in)
Spring color
Pressure regulator spring 11.5 (0.453) 26.5 (1.043) 1.0 (0.039) Maroon
Lock-up control spring 5.0 (0.197) 35.2 (1.386) 0.6 (0.024) Purple

86U07B-295
Assembly
1. Install the lock-up control spring, lock-up control
valve, stopper plug, and stopper pin.
86U07B-296
Install the pressure regulator valve, pressure regu-
lator spring, pressure regulator spring seat, pres-
sure regulator plug, pressure regulator plug sleeve,
pressure regulator backup plug, stopper plug, and
stopper pin.
Note
Install the stopper plug larger end first.
86U07B-297
3. Install the manual valve.
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7B-148

7B INSPECTION AND REPAIR
(2) Tighten the rear control body.
Tightening torque:
6—8 N-m (66—80 cm-kg, 57—69 in-lb)
86U07B-319
Install the 3-4 solenoid valve and lock-up solenoid
valve along with new O-rings and oil strainers.
Tightening torque:
6—8 N-m (66—80 cm-kg, 57—69 in-lb)
76G07B-161
18. Install the
1
-2 solenoid valve and 2-3 solenoid valve
along with new O-rings and oil strainers.
Tightening torque:
6—8 N-m (66—80 cm-kg, 57—69 in-lb)
76G07B-162
7B-154