1987 MAZDA 626 check oil

7C HYDRAULIC CIRCUIT
1 RANGE (1ST GEAR)
Orifice
Low and reverse brake pressure
Rear clutch pressure
Front clutch pressure
Vacuum
>
diaphragm
76G07C-347
Oil cooler
Kick-down solenoid
] Down: valve Oil pump Vacuum throttle valve
I Throttle backup valve
Throttle relief] valve check valve
Modifier valve Orifice checkI valve
pLU Second l-i—| lock valve
Orifice valve
valve
Secondary x Primary governor valve governor valve
Line pressure m
Operation line pressure
Governor pressure
Torque converter
Throttle pressure
Pressure regulator valve
7C-134

HYDRAULIC CIRCUIT 7C
1 RANGE (2ND GEAR)
Band servo
Release side
Low and reverse brake I pressure
1 Rear clutch pressure
Vacuum diaphragm Kick-down solenoid
Front clutch pressure
Downsaift valve fl Oil pump Vacuum throttle valve
Throttle backup valve
Throttl relief I valve
Orifice check valve
Modifier valve Orifice check valve I
Second lock valve
Orifice valve Pressure regulator valve
I—i Line pressure

EH Operating line pressure

dH Governor pressure
I—I Torque convertei
Ml Throttle pressure Secondary x governor valve Primary x governor valve
76G07C-348
7C—135

INSPECTION
Check as described below, replace parts if necessary.
1. Check the hub for cracks or damage.
69G09X-028
2. Check the sensor rotor for cracks or damage.
69G09X-029
3. Check the knuckle spindle for cracks or damage,
and the oil seal friction surface for wear or rust.
86U09X-043
4. Check the dust cover for damage.
5. Check the hub cap for damage.
69G09X-031

DRIVESHAFT 9
INSTALLATION
Install in the reverse order of removal referring to the installation note.
Torque specifications
42—62 N m (4.3—6.3 m-kg, 31—46 ft-lb)
8—11 N-m (80—110 cm-kg,
7—10 N-m (70—100 cm-kg, 60—86 in-lb)
16—23 N-m
(1.6—2.3 m-kg, 12—17 ft-lb)
29—44 N-m (3.0—4.5 m-kg, 22—33 ft-lb)
43—54 N-m (4.4—5.5 m-kg, 32—40 ft-lb)
8—11 N-m (80—110 cm-kg, 69—95 In-lb)
235—319 N-m (24.0—32.5 m-kg, 174—235 ft-lb)
88—118 N-m (9.0—12.0 m-kg 65—87 ft-lb)
86U09X-070
I Apply grease
^^TBT0J
if
Clip
Installation Note
Clip
Install a new clip.
Note
a) Before installing the shaft, check the trans-
axle oil seal for damage.
b) Apply transaxle oil to the oil seal lip.
86U09X-071
9-37

10 OUTLINE
86U10X-004
1. Steering wheel
2. Steering shaft
3. Intermediate shaft
4. Steering gear assembly
5. Pressure hose
6. Return hose
7. Oil pump
8. Solenoid valve
9. Control unit
10. Reserve tank
11. Steering angle sensor
12. Check connector
Note
Electronically - controlled power steering is abbreviated ECPS.
10—4

ON-VEHICLE MAINTENANCE 1 0
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V
^A-X
Power Steering
1.
86U10X-014
86U10X-015
With the vehicle on a hard level surface, move the
steering wheel to put the wheels in the straight
ahead position.
Start the engine and warm the power steering flu-
id to 50—60°C (122—140°F), pull scale.
Attach a pull scale to the outer circumference of
the steering wheel. Then, starting with the wheels
in the straight-ahead position, check the steering
effort required to turn the steering wheel to the left
and to the right.
If the measured value exceeds specification, check
the following: fluid level, air in system, fluid leak-
age at hose or connections, function of oil pump
and gear box, and tire pressure.
Steering wheel effort:
ESPS Type
25—31N (2.6—3.2 kg, 6—7 lb)
ECPS Type
15—23 N (1.7—2.3 kg, 3—5 lb)
4WS Type
25—35N (2.5—3.5 kg, 6—8 lb)
[during one turn of the steering wheel]
Note (4WS)
1)lf not within specification, separate the
transfer shaft from the front steering gear
and check again.
2) If still not within specification, there is a
malfunction of the front steering gear.
3) If the measured value is now within specifi-
cation, check the transfer shaft and rear
steering gear. (Refer to Page 10—45.)
86U10X-016
POWER STEERING FLUID LEVEL
Check the power steering fluid level, and add fluid
to the specified level if necessary.
Caution
Use only the specified power steering fluid.
86U10X-017
10—11

1 0 ON-VEHICLE MAINTENANCE
Gasoline engine Adjust bolt
Idler pulley fM ,.. Lock nut
1 / I
Drive pulley Power steering oil
pump pulley
76G10X-004
Diesel engine
Vacuum pump
Rear
camshaft
pulley
Power steering oil
pump pulley
76G10X-005
86U10X-019
LOOSE OR DAMAGED OIL PUMP BELT
Inspection
Inspect the oil pump belt for looseness or damage.

Power steering
oil

pump drive belt
Deflection Power steering
oil

pump drive belt New Used
Gasoline engine 8—10
mm

(0.31-0.39
in)

9—11
mm

(0.35—0.43
in)

Diesel engine 6.5—7.5
mm
(0.26—0.30
in)

7—8
mm

(0.28—0.31
in)
[When depressed with a force of 98 N (10 kg,
22 lb)]
Adjustment
Gasoline engine
1. Loosen the lock nut on the idler pulley.
2. Turn the adjust bolt on the idler pulley until the cor-
rect tension is obtained.
3. Tighten the lock nut and recheck the tension.
Tightening torque:
49—59 Nm (5—6 m-kg, 36—43 ft-lb)
Diesel engine
1. Loosen the vacuum pump bolt ©and (B).
2. Lever the vacuum pump outward and apply ten-
sion to the belt.
3. Tighten the adjust bolt (|).
Tightening torque:
49—59
N
m (5—6 m-kg, 36—43 ft-lb)
4. Tighten the mounting bolt
Tightening torque:
37—52 N-m (3.8—5.3 m-kg, 27—38 ft-lb)
REAR STEERING GEAR OIL
Fluid Level (4WS)
Remove the bleeder valve, and check the fluid level
with a wire.
Caution
Be careful not to let dirt in.
Fluid level
44 ± 3 mm (1.7 ± 0.1 in)
0.9 ± 0.1 liters (1.0 ± 0.1 US qt,
0.8 ± 0.1 Imp qt)
86U10X-250
10-12

ON-VEHICLE MAINTENANCE 1 0
LEAKAGE OF POWER STEERING FLUID
Check the following points for fluid leakage:
1. Gear
2. Oil pump
3. All fluid pipes and connections
4. Solenoid valve (ECPS Type, 4WS Type)
Note
a) Start the engine, and check for fluid leakage after turning the steering wheel completely
to the left and right to apply fluid pressure. Do not, however, keep the steering wheel
in the fully turned position for more than 15 seconds.
b)The points where fluid leakage may occur are indicated by the arrows in the figure.
Power Steering (2WS)
86U10X-020
10-13