1987 MAZDA 626 Workshop Manual

ON-VEHICLE MAINTENANCE 7B
ON-VEHICLE MAINTENANCE
AUTOMATIC TRANSAXLE FLUID (ATF)
Inspection for Fluid Leaks
Check for fluid leaks; the following figure shows the locations where fluid leakage may possibly occur.
1. Oil pan
2. Control valve body cover
3. Oil pump
4. Inhibitor switch
5. Speedometer driven gear
6. Pulse generator (G4A-EL)
7. Oil filler tube
8. Throttle cable
9. Bearing cover
76G07B-085
10. Driveshaft
11. Square head plug
12. Transaxle case
13. Drain plug
14. Oil cooler return pipe
15. Oil cooler outlet pipe
16. Fluid temperature switch (G4A-EL)
17. Blind plugs
18. Governor cover (G4A-HL)
Inspection of Level
1. Apply the parking brake and position wheel chocks
to prevent the car from rolling forward.
Note
Place the car on a flat, level surface.
2. Run the engine so that the automatic transaxle fluid
reaches specified temperature.
3. While the engine is idling, shift the select lever from
P to L or P to 1 and back again.
4. Let the engine idle.
5. Shift the select lever to P.
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7B—71

7B ON-VEHICLE MAINTENANCE
86U07B-064
86U07B-065
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•A
0 0
0 »
LX] O 9
m
(2)

(1)

Button need not
be depressed
Button must be pressed
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6. Ensure that the ATF level is between the F and L
marks. Add ATF to specification, if necessary.
Low temperature scale:
20°C (68°F)
High temperature scale:
65°C (149°F)
ATF type:
Dexron II or M HI
Inspection of Condition
1. Check the ATF for discoloration.
2. Check the ATF for any unusual smell.
Note
Determine whether or not the automatic trans-
mission should be disassembled by observ-
ing the condition of fluid carefully.
If the fluid is muddy and varnished, it indicates
burned drive plates.
SELECTOR LEVER
Inspection
1. Check that the selector lever can only be shifted
as shown in the figure.
2. Make sure there is a click at each range when shift-
ed from P <-> L or P <-» 1 range.
3. Check that the position of the selector lever and
the indicator are exact.
4. Check that the button returns smoothly when used
to shift the selector.
Adjustment
1. Loosen locknuts A, B, and lockbolt C.
2. Shift the selector lever to P range.
3. Shift the transaxle to P range by moving the man-
ual shaft of the transaxle.
4. While holding the selector lever forward in P range,
tighten lockbolt C to the specified torque.
Tightening torque:
8—11 N-m (80—110 cm-kg, 67—95 in-lb)
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7B—72

ON-VEHICLE MAINTENANCE 7B
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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, 67—96 in-lb)
7. Shift the selector lever to N range.
8. With the button on the selector lever knob pressed,
push the selector toward R range with a force of
20 N (2 kg, 4.4 lb) and check the amount of move-
ment (a) at the selector lever knob.
9. Pull the selector lever toward D range in the same
manner and check the amount of movement (b).
10. Verify the stroke difference of (a) and (b) is as
specified.
Stroke difference: 8 mm (0.315 in) max.
Note
If not with in specification, readjust locknuts
A and B.
11. Check the selector lever operation.
(Refer to Inspection section.)
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THROTTLE CABLE
Inspection
1. Check the inner and outer cable for damage.
2. Make sure that the accelerator operates smoothly.
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Removal
1. Remove the battery and battery carrier.
2. Disconnect the main fuse block. (G4A-EL)
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7B—73

7B ON-VEHICLE MAINTENANCE
3. Separate the harness from the clip.
4. Jack up the vehicle and support it with safety
stands, then drain the ATF.
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5. Remove the throttle cable from the throttle cam
(throttle chamber).
6. Remove the control valve body cover and gasket.
7. Remove the throttle cable from the throttle cam
(control valve body).
8. Remove the mounting bolt and throttle cable from
the transaxle.
9. Remove the O-ring.
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Installation
Install in the reverse order of removal referring to in-
stallation note.
Installation note
Throttle cable
Install the throttle cable and a new O-ring into the
transaxle case.
Tightening torque:

(A)
8—11 Nm
(80—110 cm-kg, 69—95 in-lb)
(1)19—26
N
m
(1.9—2.6 m-kg, 14—19 ft-lb)
Control valve body cover
Install the control valve body cover and a new gasket.
Tightening torque:
8—11 Nm (85—110 cm-kg, 74—95 in-lb)
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7B—74

ON-VEHICLE MAINTENANCE 7B
'mfm^i! kfOl iff t—
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Main fuse block (G4A-EL)
Install the main fuse block.
Tightening torque:
8—11 Nm (80—110 cm-kg, 69—95 in-lb)
Battery carrier
Install the battery carrier.
Tightening torque:
31—40 Nm (3.2—4.1 m-kg, 23—30 ft-lb)
ATF level
After installation, add ATF, and with the engine idling,
check the fluid level and for leaks. (Refer to page
7 B—71)
Adjustment (G4A-EL)
1. Remove the splash shield next to the left front tire.
2. Remove the square head plug L and install the
SST
3. Shift into P range and start the engine. Warm up
the engine to normal operating temperature, and
adjust the idle speed.
Idle speed: 950 ±5o rpm
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3 CO CO 03

(1)

L
Line pressure
beeing to increase
I
Adjusting point

•
clockwise Counter
clockwise Position of locknuts
86U07B-482
4. Adjust locknuts as follows:
When the locknuts are moved, line pressure is in-
creased or decreased as shown. Adjust the lock-
nuts to the correct position using the following
procedure.
(1) Initially install the locknuts fully away from the
throttle cam. (Loosen the cable all the way)
(2) Adjust the locknuts in a clockwise direction as
viewed from the front of the vehicle until the
line pressure begins to increase above the
specification shown below.
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7B ON-VEHICLE MAINTENANCE
Line pressure decreases
Line pressure increases
86U07B-483
Protector
-7 / Throttle cable
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(3) Adjust the locknuts in a counterclockwise direc-
tion until the line pressure decreases to the
specification. Tighten the locknuts.
Specified pressure: 432—450 kPa
(4.4—4.6 kg/cm2, 63—66 psi)
Note
Transmission in P range
5. Turn off the engine.
6. Reinstall the square head plug.
Tightening torque:
5—10 N m (50—100 cm-kg, 43—87 in-lb)
7. Fully open the throttle valve; then crimp the pin with
the protector installed as shown.
8. Remove the protector.
Adjustment (G4A-HL)
1. Remove the splash shield next to the left front tire.
2. Remove the square head plug T and install the
SST
3. Shift into P range and start the engine. Warm up
the engine to normal operating temperature, and
adjust the idle speed.
Idle speed: 900 -5o rpm
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3 tn tn (1)
L
Counter- ^ clockwise
Throttle pressure
beeing to increase
I Adjusting point
Position of locknuts
Clockwise
4. Adjust locknuts as follows:
When the locknuts are moved, throttle pressure is
increased or decreased as shown. Adjust the lock-
nuts to the correct position using the following
procedure.
(1) Initially install the locknuts fully away from the
throttle cam. (Loosen the cable all the way)
(2) Adjust the locknuts in a clockwise direction as
viewed from the front of the vehicle until the
throttle pressure begins to increase above the
specification shown below.
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ON-VEHICLE MAINTENANCE 7B
Line pressure decreases
Line pressure increases
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Protector
NAAA/V^
/NA/w^nJ
Throttle cable Crimp
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(3) Adjust the locknuts in a counterclockwise direc-
tion until the throttle pressure decreases to the
specification. Tighten the locknuts.
Specified pressure: 88—108 kPa
(0.9—1.1 kg/cm2, 13—16 psi)
Note
Transmission in P range
5. Turn off the engine.
6. Reinstall the square head plug.
Tightening torque:
5—10 N m (50—100 cm-kg, 43—87 in-lb)
7. Fully open the throttle valve; then crimp the pin with
the protector installed as shown.
8. Remove the protector.
CONTROL VALVE BODY
Note
Remove the control valve body only if
troubleshooting indicates a probable failure.
Removal
1. Remove the throttle cable. (Refer to 7B—73)
2. Disconnect the solenoid connector.
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3. Remove the control valve body.
Disassembly, Inspection and Assembly
Refer to control valve body section of INSPECTION
AND REPAIR.
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7B ON-VEHICLE MAINTENANCE
Installation
Install in the reverse order of removal referring to in-
stallation note.
Installation note
Control valve body
Install the control valve body.
Tightening torque: 11—15 N-m
(110—150 cm-kg, 95—130 in-lb)
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Note
a) To place the manual plate in the correct po-
sition of the manual valve, shift into "R" be-
fore installation.
b) Verify that the manual plate and manual
valve are assembled correctly by using a
mirror, then tighten the mounting bolts.
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w v
ATF level
After installation, add ATF, and with the engine idling,
check the fluid level and for leaks.
(Refer to page 7B—71)
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Throttle cable
Adjust the throttle cable with the oil pressure test.
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7B-78