1987 MAZDA 626 clutch

7C DISASSEMBLY
Procedure
1. Remove the anchor-end bolt and locknut.
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2. Remove the brake band and strut.
Note
Use a piece of wire to secure the brake band
so that it is not damaged by being stretched.
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3. Remove the front clutch.
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4. Remove the rear clutch.
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DISASSEMBLY 7C
5. Remove the rear clutch hub assembly.
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6. Remove the front planetary carrier.
7. Remove the seal sleeve.
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8. Remove the sun gear and spacer.
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9. Remove the connecting shell.
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7C—43

DISASSEMBLY 7C
DISASSEMBLY - STEP 3
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1. Oil pipe
2. Parking pawl assembly
3. Drum hub assembly
4. One-way clutch inner race
assembly
5. One-way clutch
6. Retaining plate
7. Drive and driven plate
8. Dished plate
9. Low and reverse brake hub
10. Low and reverse brake
piston
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11. Actuator support
12. Manual shaft assembly
13. Knock pin
14. Control rod, detent ball,
and spring
7C—45

7C DISASSEMBLY
Procedure
1. Remove the governor outlet and inlet pipes.
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2. Remove the parking pawl assembly.
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3. Remove the drum hub assembly.
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4. Remove the one-way clutch inner race assembly.
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7C-46

DISASSEMBLY 7C
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5. Check the low and reverse brake clearance.
Standard clearance:
0.8—1.05 mm (0.032—0.041 in)
Note
If it is not within specification, use the retain-
ing plate to make the adjustment at the time
of installation. (Refer to page 7C—104.)
6. Remove the one-way clutch.
(1) Install the SST to the one-way clutch as shown.
(2) Compress the one-way clutch.
(3) Remove the snap ring.
(4) Remove the SST.
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(5) Remove the one-way clutch.
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7C—47

7C INSPECTION AND REPAIR
INSPECTION AND REPAIR
PRECAUTION
(1) Several of the parts resemble each other; organize them so that they do not get mixed up.
(2) Clean each part with cleaning oil, clean out the oil holes and oil passages with compressed air,
and check that there are no obstructions.
(3) When using cleaning oil and compressed air, wear protective eyewear.
(4) If a clutch plate or brake band is replaced with a new one, soak it in ATF for 2 hours or more
before installing.
(5) Before assembly, apply ATF to all seal rings, rotating parts, and sliding parts.
(6) All seals, gaskets and roll pins must be replaced with new ones during assembly.
(7) Use petroleum jelly, not grease where required.
(8) When it is necessary to replace a bushing, replace the assembly which includes that bushing.
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TORQUE CONVERTER
The torque converter is welded together and cannot
be disassembled.
Inspection
1. Check the outer part of the converter for damage
or cracks, and replace it if necessary.
2. Check for rust on the pilot hub of the converter or
on the boss. If there is any, remove it completely.
3. Measure the bushing of the converter boss. Re-
place the converter assembly if the bushing is
worn.
Bushing inner diameter
Standard: 33.000—33.025 mm
(1.299—1.300 in)
Maximum: 33.075 mm (1.302 in)
Washing Inside of Converter
1. Drain any ATF remaining in the converter.
2. Pour in solvent [approximately 0.5 liter (0.53 US
qt, 0.44 Imp qt) ].
3. Shake the converter to clean the inside. Pour out
the solvent.
4. Clean the inside of the converter with compressed
air so that the inside is perfectly empty.
5. Pour in ATF.
6. Shake the converter to clean the inside. Pour out
the ATF.
7C-54

7C INSPECTION AND REPAIR
FRONT CLUTCH
Disassembly
Disassemble in the sequence shown in the figure, referring to the disassembly note for specially marked
parts.
76G07C-139 1 Snap rjng
2. Retaining plate
3. Drive and driven
plates
4. Dished plate
5. Snap ring
6. Spring retainer
7. Return spring
8. Piston
9. Seal rings
10. Rear clutch
drum
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63U07B-097
Disassembly note
Front clutch clearance
Before disassembling the front clutch, measure the
front clutch clearance.
Front clutch clearance:
1.6—1.8 mm (0.063—0.071 in)
Note
If the clearance is not within specification, ad-
just by using the retaining plate at the time of
assembly. (Refer to page 7C—60.)
Snap ring
Compress the clutch spring with the SST, and re-
move the snap ring with a screwdriver.
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7C-58

INSPECTION AND REPAIR 7C
Piston
Remove the piston by blowing compressed air into
the hole indicated.
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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 areas for damage
5. Check ball for leaking or sticking
6. Spring retainer for deformation
7. Broken or worn snap ring
8. Broken or weakened spring
Free length of spring:
26.2 mm (1.031 in)
9. Worn drum bushing
Drum bushing inner diameter:
44.075 mm (1.735 in) max.
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Assembly
1. Apply ATF to the inner seal ring, and install it into
the rear clutch drum.
2. Apply ATF to the outer seal ring, and install it onto
the piston.
3. Install the piston by pushing evenly around the cir-
cumference, being careful not to damage the seal
rings.
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7C—59