MAZDA 626 1987 Workshop Manual

ON-VEHICLE MAINTENANCE 7C
76G07C-045
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5. Turn locknut A by hand until it just touches the
spacer.
6. Tighten locknut B to the specified torque.
Tightening torque:
8—11 N-m (80—110 cm-kg, 69—95 in-lb)
7. Verify that there is a click at each range when shift-
ed from P «-» 1 range.
8. Check that the positions of the selector lever and
the indicator are exact.
9. Check that the button returns smoothly when used
to shift the selector.
10. If necessary, check the spring.
VACUUM DIAPHRAGM
Inspection
1. Remove the vacuum hose from the vacuum di-
aphragm. Check for ATF leakage. Replace if any
is found.
2. Remove the vacuum diaphragm.
3. Verify that the diaphragm rod moves when vacu-
um is applied.
Caution
When removing the diaphragm, do not drop
the rod into the oil pan.
76G07C-046
Vacuum diaphragm
Adjustment
Note
a) Excessive shift shocks and improper shift-
ing often indicate a vacuum diaphragm mal-
function.
b) Remove approximately 1.0 liter (1.1 US qt,
0.9 Imp qt) of ATF before removing the
vacuum diaphragm.
1. Remove the vacuum diaphragm, rod, and O-ring
from the transaxle case.
2. Measure the N dimension indicated in the figure
with the SST and a scale.
3. Select the diaphragm rod in accordance with the
table.
N dimension Applicable diaphragm
rod length
Below 25.4 mm (1.000 in) 29.5 mm (1.161 in)
25.4—25.9 mm (1.000-1.020 in) 30.0 mm (1.181 in)
25.9—26.4 mm (1.020-1.039 in) 30.5 mm (1.200 in)
26.4—26.9 mm
(1.039—1.059 in) 31.0 mm (1.220 in)
26.9 mm (1.059 in) or over 31.5 mm (1.240 in)
76G07C-048
10,-21

7C ON-VEHICLE MAINTENANCE
REPLACEMENT OF CONTROL VALVE
1. Disconnect the negative battery cable.
2. Jack up the vehicle and support it with safety
stands.
3. Drain the ATF.
4. Remove the under cover and side cover.
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5. Remove the oil pan from the transaxle case.
Caution
Be careful because some ATF will be in the
oil pan.
6. Remove the control valve body.
Caution
Be careful not to lose the ball and spring for
the torque converter relief valve or the vacu-
um diaphragm rod.
7. Install the control valve body as follows:
(1) Install the vacuum diaphragm rod.
(2) Insert the ball and spring into the hole in the
transaxle case.
Note
a) The ball is inserted first, then the spring.
b) Use petroleum jelly to prevent them from
falling out.
(3) Install the control valve, mating the groove of
the manual valve with the driving pin of the con-
trol rod.
(4) Tighten the control valve mounting bolts to the
specified torque.
Tightening torque:
8—11 N-m (80—110 cm-kg, 69—95 in-lb)
8. Install the oil pan and tighten the bolts to the speci-
fied torque.
Tightening torque:
5—8 N-m (50—80 cm-kg, 43—69 in-lb)
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7C-28

ON-VEHICLE MAINTENANCE 7C
9. Install the under cover and side cover.
10. Lower the vehicle.
11. Add ATF, and with the engine idling, check the fluid
level.
12. Verify that there is no fluid leakage from the trans-
axle. (Refer to page 7C—25.)
76G07C-052
REPLACEMENT OF SERVO PISTON RETURN
SPRING
1. Remove the control valve body. (Refer to replace-
ment of control valve.)
2. Loosen the anchor end-bolt and locknut.
3. Remove the band strut.
4. Compress the servo piston retainer with the SST.
5. Remove the snap ring with a screwdriver.
76G07C-053
76G07C-054
6. Remove the servo retainer, piston and spring by
gradually loosening the SST.
7. Replace the return spring. If the O-ring or the piston
seal is damaged, replace them.
8. Assemble the servo retainer, piston, and spring,
insert them into the case with the SST. Fit the snap
ring into the ring groove.
9. Install the band strut.
10. Tighten the anchor-end bolt to 12—15 N-m
(120—150 cm-kg, 104—130 in-lb), then back it
off two full turns. Tighten the locknut to 55—80
N m (5.6—8.2 m-kg, 41—59 ft-lb).
11. Install the control valve body, oil pan, etc. in the
reverse order of removal.
12. Adjust the fluid level, and check for fluid leaks.
(Refer to page 7C—25.)
76G07C-055
7C—29

7C REMOVAL
REMOVAL
PREPARATION
(1) Drain the ATF before removal.
(2) Attach the engine support.
(3) Jack up the vehicle and support it with safety stands.
Components
1. Battery
2. Battery carrier
3. Fresh air duct
4. Main fuse block
5. Distributor leads
6. Speedometer cable
7. Cnnectors
8. Ground wires
9. Selector cable
10. Vacuum hose
11. Front wheels
12. Splash shields
13. Oil cooler outlet and inlet
hoses
14. Tie-rod ends
15. Stabilizer bar control links
16. Lower arm ball joints
17. Driveshaft
18. Joint shaft bracket
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19. Joint shaft and driveshaft
20. Under cover
21. Torque converter bolts
22. Starter
23. Engine mount No.4
24. Engine mount No.2
25. Crossmember and left side
lower arm
26. Transaxle
7C-30

REMOVAL 7C
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76G07C-058
76G07C-059
1. Remove the battery and battery carrier.
2. Remove the fresh air duct.
3. Disconnect the main fuse block.
4. Disconnect the distributor leads.
5. Disconnect the speedometer cable.
6. Disconnect the connectors.
(1) Inhibitor switch
(2) Kick-down solenoid
7. Disconnect the grounds from the transaxle case
and oil pump.
8. Disconnect the selector cable.
9. Disconnect the vacuum hose.
10. Remove the front wheels.
11. Remove the splash shields.
12. Drain the ATF.
13. Disconnect the oil cooler outlet and inlet hoses.
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7C—31

7C REMOVAL
14. Disconnect the tie-rod ends with the SST.
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76G07C-062
76G07C-063
15. Remove the stabilizer bar control links.
16. Remove the bolts and nuts at the left and right low-
er arm ball joints.
17. Pull the lower arms downward to separate them
from the knuckles.
Caution
Do not damage the ball joint dust boots.
18. Separate the left driveshaft from the transaxle by
prying with a bar inserted between the shaft and
the case.
Caution
Do not damage the oil seal.
19. Remove the joint shaft bracket.
20. Separate the right driveshaft together with the joint
shaft in the same manner.
21. Install the SST into the differential side gears.
Caution
Failure to install the SST may allow the
differential side gears to become misaligned.
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7C—32

REMOVAL 7C
22. Remove the under cover.
23. Remove the torque converter bolts.
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24. Remove the starter.
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25. Suspend the engine with the SST.
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26. Remove engine mount No.4 and bracket.
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7C-33

7C REMOVAL
27. Remove engine mount No. 2.
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76G07C-070
28. Remove the crossmember and the left side lower
arm as an assembly.
29. Lean the engine toward the transaxle by loosen-
ing the engine support hook bolt.
30. Support the transaxle with a jack.
31. Remove the transaxle mounting bolts.
32. Remove the transaxle.
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7C-34

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.
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4. Remove the clip from the turbine shaft.
Note
Do not reuse the clip.
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7C-36