1987 MAZDA 626 torque

ASSEMBLY 7C
ASSEMBLY
PRECAUTION
(1) The automatic transaxle consists of high-precision-finished parts, necessitating careful inspection
before assembly because even a small nick could cause fluid leakage or affect performance.
(2) Clean out oil holes and oil passages with compressed ajr, and check that there are no obstructions.
(3) Before assembly, apply ATF to each O-ring, seal ring, rotating part, and friction part.
(4) If the brake band or drive plates are replaced with new ones, soak them in ATF for at least 2 hours
before installing.
(5) Each seal gasket and O-ring must be replaced with a new one.
(6) Be sure to install all thrust bearings and races in the correct direction and position.
ASSEMBLY—STEP 1
Torque Specifications
19—26 N-m (1.9—2.6 m-kg, 14—19 ft-lb)
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7C ASSEMBLY
Procedure
1. Adjust the preload of the output gear bearing and select the adjust shim(s) as described below.
Note To adjust the preload, use the SST shown below.
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(1) Align the matching mark as shown; then press
the bearing cover in with the SST after align-
ing it with guide bolts as shown.
Tightening torque: 11—14 N-m
(110—140 cm-kg, 95—122 in-lb)
(2) Mount the converter housing onto the trans-
axle hunger.
(3) Remove the bearing outer race and adjust
shims from the bearing housing. (Refer to page
7C-87.)
(4) Set the output gear assembly into the convert-
er housing.
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ASSEMBLY 7C
(5) Install the outer race removed in step (3) to the
SST; then mount them on the output gear as-
sembly.
Caution
Eliminate the gap (arrow) by turning A or B of
the selector.
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(7) Set the bearing housing on the SST (selector)
and install the four SST (bolts); then tighten
them to the specified torque,
Tightening torque:
19—26 N m (1.9—2.6 m-kg, 14—19 ft-lb)
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(8) Turn the SST (selector) to increase the clear-
ance (indicated by the arrow) with the SST
(bars) until it no longer turns.
Note
This is to seat the bearing.
(9) Turn the selector in the opposite direction un-
til the preload is eliminated (gap is reduced).
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7C ASSEMBLY
(10) Mount the SST and pull scale or torque
wrench on the output gear.
(11) Increase the clearance between A and B
to obtain the specified preload/pull scale
reading.
Preload: 0.5—0.9 N-m
(5.0—9.0 cm-kg, 4.34—7.81 in-lb)
Reading on pull scale: 5—9 N
(0.5—0.9 kg, 1.1—1.98 lb)
Note
Read the preload when the output gear starts
to turn.
(12) Measure the clearance. Select adjust
shim(s) equivalent to the measured
clearance.
Thickness of shim
0.10 mm (0.004 in) 0.12 mm (0.005 in) 0.14 mm (0.006 in)
0.16 mm (0.0063 in) 0.20 mm (0.008 in) 0.50 mm (0.020 in)
Caution
a) Measure the clearance around the entire cir-
cumference, and select shims equivalent to
the maximum clearance.
b)The maximum allowable number of shims
is 7.
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ASSEMBLY 7C
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(13) Remove the bearing housing and SST.
(14) Install the required shim(s) and press the
bearing race into the bearing housing with
a suitable pipe.
(15) Install the bearing housing.
Tightening torque:
19—26 N m (1.9—2.6 m-kg, 14—19 ft-lb)
(16) Check that the preload/pull scale reading
is within specification. If not within specifi-
cation return to step (3).
Preload: 0.03—0.9 N-m
(0.3—9.0 cm-kg, 0.26—7.81 in-lb)
Reading on pull scale:
0.3—9 N (0.03—0.9 kg, 0.066—1.98 lb)
(17) Remove the bearing housing and output
gear assembly.
2. Mount the side bearing housing to transaxle case
by gradually tightening the mounting bolts in a di-
agonal pattern.
Tightening torque:
19—26 N-m (1.9—2.6 m-kg, 14—19 ft-lb)
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ASSEMBLY 7C
(4) Set the six SST in the positions shown.
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Note
Install the bolts in the positions shown in the
illustration above.
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(5) Set the transaxle case on the selectors.
(6) Tighten the SST (bolts) to the specified torque.
Tightening torque:
29—46 Nm (3.0—4.7 m-kg, 22—34 ft-lb)
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(7) Turn the SST (selector) to increase the clear-
ance (indicated by the arrow) with the SST
(bars), until it no longer turns.
Note
a )This is to seat the bearings.
b )To turn the SST (B), bend the bar as shown.
(8) Turn the selector in the opposite direction until
the preload is eliminated (gap is reduced).
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7C ASSEMBLY
(9) Insert the SST through the oil seal hole of the
transaxle case and attach
it
to the pinion shaft.
(10) Mount the SST and pull scale or torque
wrench.
(11) Widen the clearance between A and B to ob-
tain the specified preload/pull scale reading.
Preload:
0.5 N-m (5 cm-kg, 4.3 in-lb)
Reading on pull scale: 5 N (0.5 kg, 1.1 lb)
Note
Read the preload when the differential starts
to turn.
(12) Measure the clearance between A and B.
(13) Add 0.15 mm (0.0059 in) to the measured
clearance, and select the shim(s) closest in
valve to that measurement.
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Thickness
of
shim
0.10
mm
(0.004
in)
0.12
mm
(0.005
in)
0.14
mm
(0.006
in)
0.16
mm
(0.0063
in)
0.18 mm (0.007
in)

0.20 mm (0.008
in)
0.50 mm (0.020
in)
0.70
mm
(0.028
in)
1.00 mm (0.039
in)
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Caution
a) Measure the clearance around the entire cir-
cumference, and select shims equivalent to
the maximum clearance.
b)The maximum allowable number of shims
is 3.
(14) Remove the transaxle case and selector.
(15) Install the required shim(s) and tap the bear-
ing race into the side bearing housing.
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ASSEMBLY 7C
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(16) Install the transaxle case.
Tightening torque:
29—46 N-m (3.0—4.7 m-kg, 22—34 ft-lb)
(17) Check that the preload is within specification.
If not within specification, return to step (2).
Preload: 2.1—3.0 N-m
(21—31 cm-kg, 18—27 in-lb)
Reading on pull scale: 20—30 N
(2.1—3.1 kg, 4.6—6.8 lb)
(18) Remove the transaxle case.
3. Install the idle gear and output gear as an assem-
bly by tapping in with a plastic hammer.
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4. Install the bearing housing.
(1) Mount the bearing housing onto the convert-
er housing.
Tightening torque:
19—26 N-m (1.9—2.6 m-kg, 14—19 ft-lb)
(2) Align the groove on the idle shaft as shown.
(3) Tap the roll pin in with a pin punch and
hammer.
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