check oil MAZDA 626 1987 Workshop Manual

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

INSPECTION AND ADJUSTMENT 1 0
INSPECTION AND ADJUSTMENT
BLEEDING OF POWER STEERING SYSTEM
1. Check the fluid level, and add fluid if necessary.
2. Turn the steering wheel fully in both directions 5
times (engine not running).
3. Recheck the fluid level. If the level has lowered,
add fluid, and repeat from step 1.
86U10X-021
4. Start the engine, and run it at idle.
5. Turn the steering wheel fully in both directions 5
times to bleed air from the system.
6. Check that the fluid is not foamy and the fluid lev-
el has not lowered.
If a problem is found, add fluid as necessary and
repeat from step 5.
Note
If bleeding is not done completely, the follow-
ing problems may appear:
• Foamy fluid on level gauge.
• Noise from power steering oil pump.
86U10X-022
10—15

4-WHEEL STEERING GEAR AND LINKAGE 1 0
76G10X-035
1. Temporarily install the front bracket.
2. Install the rear bracket, and then tighten at the
specified torque.
Tightening torque:
22—30 Nm (2.2—3.1 m-kg, 5.1—7.2 ft-lb)
3. Tighten the front bracket bolt.
Tightening torque:
22—30 Nm (2.2—3.1 m-kg, 5.1—7.2 ft-lb)
Caution
The shaft should be installed by two or more
persons, taking care not to bend the joint part.
4. Connect the joint of the front steering gear side,
and then tighten the bolt.
5. Connect the joint of the rear steering gear side, and
then tighten the bolt.
86U10X-320
Caution
Check to be sure that the front and rear brack-
ets do not contact the oil seal.
86U10X-321
Attach a new wire and clamp, and as shown in the
illustration be sure that protrusion is within 5mm
(0.2 in).
Install the cover.
86U10X-322
10—43

1 0 4-WHEEL STEERING GEAR AND LINKAGE
INSPECTION
Front Steering Gear and Linkage
1. Check the following and replace the front steering
gear assembly if necessary.
(a) Damaged or cracked case
(b) Bent linkage
86U10X-079
2. Check the following and replace any faulty parts.
(a) Clogged, bent, or pinched pipes
(b) Faulty oil pressure switch
(c) Damaged mounting bracket and mounting
rubber
(d) Cracked, damaged, or deteriorated boots
86U10X-080
Available spare parts
86U10X-081
1. Tie-rod end 7. Oil pressure switch
2. Tie-rod end boot 8. O-ring
3. Nut 9. Mounting bracket
4. Boot 10. Mounting rubber
5. Boot band (large) 11. Oil pipe
6. Boot band (small) 12. Steering gear assembly
10—44

1 0 4-WHEEL STEERING GEAR AND LINKAGE
86U10X-085
Rear Steering Gear and Linkage
1. Check the following and replace the rear steering
gear assembly if necessary.
(a) Damaged or cracked case
(b) Faulty stepper motor or rear-to-front steering
ratio sensor
(c) Sticking bearings
(d) Oil leakage
Note
There is no fluid in a new replacement rear
steering gear assembly, add fluid to the spe-
cified level. (Refer to 10—12.)
2. Check and tighten bolts and nuts, if necessary.
3. Check the following and replace any faulty parts.
(a) Cracked, damaged, or deteriorated rear stee-
ring gear boots and bands
(b) Cracked or damaged oil pan
(c) Malfunctioning solenoid valve
86U10X-086
10-46

1 0 ENGINE SPEED SENSING POWER STEERING
Oil seal and needle bearing
1. Insert the SST so that it contacts the needle
bearing.
2. Drive the oil seal and needle bearing out with the
SST bar.
86U10X-134
^aFm / y^s.
INSPECTION
Check the following and replace any faulty parts.
Pinion shaft assembly
1. Pinion shaft teeth wear or damage
2. Control valve damage, clogging, and wear
86U10X-135
Rack bushing
Wear or damage
86U10X-136
Bearing
Wear, damage, and operation
86U10X-137
10—62

ENGINE SPEED SENSING POWER STEERING 1 0
Rack bushing
1. Install the rack bushing assembly in the rack
housing.
Tightening torque:
88—98 N m (9—10 m-kg, 65—72 ft-lb)
Note
The oil seal is pushed to the correct position
in the rack housing by the tightening of the
rack bushing.
86U10X-159
2. Stake the rack housing at two points approx 1.5
mm (0.06 in) from the end with a hammer and
center punch.
86U10X-160
Hermetic inspection
1. Connect the SST to the cylinder housing.
2. Connect a vacuum pump to the SST.
3. Apply 400 mmHg (15.7 inHg) vacuum.
4. Verify that vacuum is held for at least 30 sec. If
not, check the seal and assembly.
86U10X-161
Lower bearing
1. Secure the gear housing in a vise so that the low-
er bearing bore faces upward.
2. Apply ATF to the lower bearing, then install it in
the housing.
3. Press the bearing into the gear housing with the
housing cover. Tighten the cover until the tighten-
ing force suddenly increases.
86U10X-162
10—69

1 0 ELECTRONICALLY-CONTROLLED POWER STEERING
Oil seal
Remove the oil seal with a screwdriver.
86U10X-188
INSPECTION
Check the following and replace any faulty parts.
1. Cracked, damaged, or deteriorated boots
2. Worn pressure pad friction surface
3. Loose or sticking tie-rod ball joint
4. Bent or damaged tie-rod or tie-rod end
86U10X-189
5. Worn outer box bushing
86U10X-190
6. Cracked or damaged gear housing
7. Steering gear oil leakage
86! I10X-191
10-78

OIL PUMP 1 0
OIL PUMP
REMOVAL AND INSTALLATION
1. Jack up the front of the vehicle, and support it with safety stands.
2. Remove in the order shown in the figure, referring to the removal note for specially marked parts.
3. Install in the reverse order of removal.
4. Tighten all nuts and bolts to the specified torque, referring to the figure.
Note
a) The power steering fluid will leak out when the return hose or the pressure hose is dis-
connected. Prepare a suitable container for it to drain into.
b) After installation, inspect the deflection of the oil pump belt and bleed the air from the
system, then check for fluid leakage. 2WS (Gasoline engine)
76G10X-041
4. Bracket
5. Oil pump
6. Oil pump pulley
1. Belt
2. Nut
3. Pipes
10—83