oil MAZDA 626 1987 Workshop Manual

DISASSEMBLY 7C
DISASSEMBLY
DISASSEMBLY - STEP 1
76G07C-072
1. Torque converter
2. Oil pump shaft
3. Turbine shaft
4. Inhibitor switch
5. Kick-down solenoid
6. Vacuum diaphragm and
rod
7. Oil level gauge and tube
8. Speedometer driven gear
9. Oil pan and gasket
10. Control valve body
11. Steel ball and spring
12. Oil pump
7C—35

7C DISASSEMBLY
Procedure
Precaution
(1) Clean the transaxle exterior thoroughly with steam and/or cleaning solvents prior to disassembly.
(2) Disassemble the transaxle in a clean area (dustproof workspace) to prevent dust entry into the
mechanisms.
(3) Inspect the individual transaxle components in accordance with the QUICK DIAGNOSIS CHART
during disassembly.
(4) Use plastic hammers when applying force to separate the light alloy case joints.
(5) Do not use rags during disassembly to prevent contamination.
(6) Neatly arrange the removed parts in order during disassembly.
76G07C-073
1. Remove the torque converter from the converter
housing.
Note
Do not allow the ATF to spill when removing
the torque converter.
83U07B-119
2. Pull out the oil pump shaft by hand.
3. Remove the turbine shaft.
76G07C-074
h
ii ii = J
4. Remove the clip from the turbine shaft.
Note
Do not reuse the clip.
76G07C-075
7C-36

DISASSEMBLY 7C
5. Assembly the SST.
76G07C-076
76G07C-350
6. Attach the hanger to the oil pump as shown.
7. Lift the transaxle and mount it on the SST.
Warning
Avoid leaning the transaxle to one side dur-
ing disassembly, it may turn quickly and cause
injury.
Note
If troubleshooting indicates that there is a
problem on the differential side, separate the
transaxle case assembly from the converter
housing and cover it.
63U07B-064
8. Remove the inhibitor switch.
76G07C-077
7C—37

7C DISASSEMBLY
9. Remove the kick-down solenoid and O-ring.
76G07C-078
76G07C-079
10. Remove the vacuum diaphragm. If the vacuum di-
aphragm is difficult to remove, use pliers to grasp
the flange.
Note
When the vacuum diaphragm is removed, take
care not to lose the diaphragm rod.
11. Remove the oil level gauge and filter tube.
76G07C-080
12. Remove the speedometer driven gear.
76G07C-081
7C—38

DISASSEMBLY 7C
13. Remove the oil pan and gasket.
76G07C-351
76G07C-352
76G07C-082
14. Remove the control valve body as an assembly.
15. Remove the steel ball and spring.
Note
Be careful not to lose the steel ball and spring.
16. Measure the front clutch drum end play.
End play: 0.5—0.8 mm (0.020—0.031 in)
Note
If it is not within specification, make the
necessary adjustment by using an adjustment
shim during assembly. (Refer to page
7C—113.)
76G07C-083
7C-39

7C DISASSEMBLY
17. Remove the oil pump.
Note
If the oil pump is difficult to remove, remove
it after tightening the anchor-end bolt to se-
cure the front clutch with the brake band.
76G07C-084
18. Measure the total end play.
Standard clearance:
a) Straight edge—Pump cover
Maximum 0.10 mm (0.004 in)
b) Straight edge—Transaxle case
Maximum 0.15 mm (0.006 in)
Note
If it is not within specification, use the bear-
ing outer race to make the adjustment at the
time of installation. (Refer to page 7C—112.)
76G07C-085
7C-40

DISASSEMBLY 7C
DISASSEMBLY - STEP 3
76G07C-100
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
76G07C-101
11. Actuator support
12. Manual shaft assembly
13. Knock pin
14. Control rod, detent ball,
and spring
7C—45

DISASSEMBLY 7C
DISASSEMBLY-STEP 4
Component
76G07C-120
76G07C-121
1. Side bearing housing
2. Differential assembly
3. Roll pin
4. Bearing housing
5. Idle gear assembly
6. Output gear assembly
7. Bearing cover
8. Bearing outer race
9. Oil seal
10. Converter housing
7C—51

DISASSEMBLY 7C
76G07C-126
76G07C-127
86U07B-169
-fct
„ 1 / V.
Bearing race
49 FT01 361
5. Remove the idle gear assembly and output gear
assembly by tapping out from the torque convert-
er side.
6. Remove the bearing cover.
(1) Remove the converter housing from the trans-
axle hanger.
(2) Remove the bearing cover bolts.
(3) Press the bearing cover assembly out of the
converter housing.
7. Press the bearing outer race out of the converter
housing with the SST.
Note
Install the bearing outer race during reassem-
bly to adjust the preload.
8. Check the oil seals for damage. Replace if
necessary.
76G07C-128
7C-53

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.
76G07C-353
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