Mazda CX 7. Manual — part 271

POWER STEERING

06-14–1

06-14

2007 Mazda CX-7 Workshop Manual (1871–1U–06B)

06-14

POWER STEERING

STEERING LOCATION INDEX . . . . . . . . 06-14–2
AIR BLEEDING . . . . . . . . . . . . . . . . . . . . 06-14–3
POWER STEERING FLUID

INSPECTION . . . . . . . . . . . . . . . . . . . . 06-14–3

Fluid Level Inspection . . . . . . . . . . . . . 06-14–3
Fluid Leakage Inspection . . . . . . . . . . . 06-14–3
Fluid Pressure Inspection . . . . . . . . . . 06-14–4

STEERING WHEEL AND

COLUMN INSPECTION . . . . . . . . . . . . 06-14–5

Steering Wheel Play Inspection . . . . . . 06-14–5
Steering Wheel Looseness

Inspection . . . . . . . . . . . . . . . . . . . . . 06-14–5

Steering Wheel Effort Inspection . . . . . 06-14–5

STEERING WHEEL AND

COLUMN
REMOVAL/INSTALLATION . . . . . . . . . 06-14–6

Steering Wheel Removal Note. . . . . . . 06-14–7
Steering Lock Mounting Bolts

Removal Note . . . . . . . . . . . . . . . . . . 06-14–7

Key Cylinder (Without Advanced

Keyless System) Removal Note. . . . . 06-14–7

Steering Lock Mounting Bolts

Installation Note . . . . . . . . . . . . . . . . . 06-14–7

Steering Shaft Installation Note . . . . . . 06-14–8
Steering Wheel Installation Note . . . . . 06-14–8

STEERING SHAFT INSPECTION. . . . . . 06-14–8
STEERING GEAR AND LINKAGE

REMOVAL/INSTALLATION. . . . . . . . . . 06-14–9

STEERING GEAR AND LINKAGE

DISASSEMBLY . . . . . . . . . . . . . . . . . . . 06-14–10

Tie-rod End Disassembly Note . . . . . . 06-14–11
Tie-rod Disassembly Note . . . . . . . . . . 06-14–11
Locknut (Adjusting Cover), Adjusting

Cover Disassembly Note . . . . . . . . . . 06-14–12

Pinion Shaft, Oil seal (lower side)

Disassembly Note . . . . . . . . . . . . . . . 06-14–12

Bearing (upper side), Oil seal

(upper side) Disassembly Note . . . . . 06-14–12

Clip Disassembly Note . . . . . . . . . . . . . 06-14–13
Oil Seal Disassembly Note. . . . . . . . . . 06-14–13

Mounting Rubber Disassembly Note. . . 06-14–13

STEERING GEAR AND LINKAGE

INSPECTION . . . . . . . . . . . . . . . . . . . . . 06-14–13

Steering Rack Inspection . . . . . . . . . . . 06-14–13
Tie-rod End Inspection . . . . . . . . . . . . . 06-14–14
Tie rod Inspection . . . . . . . . . . . . . . . . . 06-14–14

STEERING GEAR AND LINKAGE

ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . 06-14–14

Mounting Rubber Assembly Note . . . . . 06-14–16
Oil Seal Assembly Note . . . . . . . . . . . . 06-14–17
Steering Rack Assembly Note. . . . . . . . 06-14–17
Stopper Assembly Note . . . . . . . . . . . . 06-14–18
Oil seal (Upper side)

Assembly Note . . . . . . . . . . . . . . . . . 06-14–18

Bearing (upper side)

Assembly Note . . . . . . . . . . . . . . . . . . 06-14–18

Oil Seal (lower side) Assembly Note . . . 06-14–19
Pinion Shaft Assembly Note . . . . . . . . . 06-14–19
Housing Cover Assembly Note . . . . . . . 06-14–19
Dust cover Assembly Note . . . . . . . . . . 06-14–19
Adjusting Cover, Locknut

(Adjusting Cover) Assembly Note . . . . 06-14–19

Tie-rod Assembly Note . . . . . . . . . . . . . 06-14–20
Boot Assembly Note . . . . . . . . . . . . . . . 06-14–21

POWER STEERING OIL PUMP

REMOVAL/INSTALLATION . . . . . . . . . . 06-14–21

POWER STEERING OIL PUMP

DISASSEMBLY/ASSEMBLY . . . . . . . . . 06-14–22

Power Steering Oil Pump Component

Disassembly Note . . . . . . . . . . . . . . . 06-14–23

Clip Disassembly Note . . . . . . . . . . . . . 06-14–23
Shaft Component

Disassembly Note . . . . . . . . . . . . . . . 06-14–24

Oil seal Disassembly Note . . . . . . . . . . 06-14–24
Oil seal Assembly Note . . . . . . . . . . . . . 06-14–24
Side plate Assembly Note . . . . . . . . . . . 06-14–24
Rotor Assembly Note . . . . . . . . . . . . . . 06-14–25
Cam Ring Assembly Note . . . . . . . . . . . 06-14–25
Rear Pump Body Assembly Note . . . . . 06-14–25
Clip Assembly Note . . . . . . . . . . . . . . . . 06-14–25

End of Toc

WM: STEERING

POWER STEERING

06-14–2

2007 Mazda CX-7 Workshop Manual (1871–1U–06B)

Revised 12/2006 (Ref. No. R215/06)

STEERING LOCATION INDEX

id061400800100

.

AWD
(Mexico spec.)

2

3

1

5

4

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1

Power steering fluid
(See 06-14-3 AIR BLEEDING.)
(See 06-14-3 POWER STEERING FLUID
INSPECTION.)

2

Steering wheel and column
(See 06-14-5 STEERING WHEEL AND COLUMN
INSPECTION.)
(See 06-14-6 STEERING WHEEL AND COLUMN
REMOVAL/INSTALLATION.)

3

Steering shaft
(See 06-14-8 STEERING SHAFT INSPECTION.)

4

Steering gear and linkage
(See 06-14-9 STEERING GEAR AND LINKAGE
REMOVAL/INSTALLATION.)
(See 06-14-10 STEERING GEAR AND LINKAGE
DISASSEMBLY.)
(See 06-14-13 STEERING GEAR AND LINKAGE
INSPECTION.)
(See 06-14-14 STEERING GEAR AND LINKAGE
ASSEMBLY.)

5

Power steering oil pump
(See 06-14-21 POWER STEERING OIL PUMP
REMOVAL/INSTALLATION.)
(See 06-14-22 POWER STEERING OIL PUMP
DISASSEMBLY/ASSEMBLY.)

POWER STEERING

06-14–3

06-14

2007 Mazda CX-7 Workshop Manual (1871–1U–06B)

Revised 3/2007 (Ref. No. R051/07)

End Of Sie

AIR BLEEDING

id061400800200

Caution

• Do not turn the steering wheel during the fluid level inspection, otherwise the fluid level changes

and cannot be inspected correctly.

1. Inspect the fluid level. (See 06-14-3 POWER STEERING FLUID INSPECTION.)
2. Jack up the front of the vehicle and support it on safety stands.
3. Turn the steering wheel fully to the left and right several times with the engine not running.
4. Reinspect the fluid level.

• If it has dropped, add fluid.

5. Repeat Steps 3 and 4 until the fluid level stabilizes.
6. Lower the vehicle.
7. Start the engine and let it idle.
8. Turn the steering wheel fully to the left and right several times.
9. Verify that the fluid is not foamy and that the fluid level has not dropped.

• If the fluid level has dropped, add fluid as necessary and repeat Steps 8 and 9.

End Of Sie

WM: POWER STEERING FLUID

POWER STEERING FLUID INSPECTION

id061400800500

Fluid Level Inspection

1. Inspect the power steering fluid level.

• Add fluid to the specified level as necessary.

Power steering fluid type

ATF M-III, M-V or equivalent (e.g. Dexron

®

II)

Power steering fluid capacity (approx. quantity)

2WD, AWD (except Mexico spec.): 0.89 L {0.94 US qt, 0.78 lmp qt}
AWD (Mexico spec.): 0.98 L {1.0 US qt, 0.86 lmp qt}

Fluid Leakage Inspection

1. Start the engine and let it idle.
2. Turn the steering wheel fully to the left and right to apply fluid pressure.

Caution

• If the steering wheel is kept in the fully turned position for more than 5, the fluid temperature will

rise excessively and adversely affect the oil pump.

3. Inspect for fluid leakage.

• If fluid leakage is found, replace related pipe

or hose.

Note

• The points where fluid leakage may occur

are indicated in the figure.

AWD (Mexico spec.)

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POWER STEERING

06-14–4

2007 Mazda CX-7 Workshop Manual (1871–1U–06B)

Fluid Pressure Inspection

1. Assemble the SSTs as shown in the figure.

2. Disconnect the pressure pipe from the oil pump,

and connect the SSTs.

Tightening torque

29.4— 44.1 N·m {3.0— 4.4 kgf·m, 22— 32

ft·lbf}

3. Bleed the air from the system. (See 06-14-3 AIR

BLEEDING.)

4. Open the gauge valve fully.
5. Start the engine and turn the steering wheel fully

left and right to raise the fluid temperature to 50—
60

°C {122— 140 °F}.

6. Close the gauge valve completely.
7. Increase the engine speed to 1,000— 1,500 rpm

and measure the fluid pressure generated by the
oil pump.

• If the pressure is not within the specification,

repair or replace the oil pump component.

Caution

• If the valve is left closed for more than 5,

the fluid temperature will rise excessively
and adversely affect the oil pump.

Oil pump fluid pressure

10.31— 10.80 MPa {105.2— 110.1 kgf/cm

2

,

1,496— 1,566 psi}

8. Open the gauge valve fully and increase the

engine speed to1,000— 1,500 rpm.

9. Turn the steering wheel fully to the left and right,

then measure the fluid pressure generated at the
gear housing.

• If the pressure is not within the specification,

repair or replace the steering gear
component.

Caution

• If the steering wheel is kept in the fully

turned position for more than 5 seconds,
the fluid temperature will rise excessively
and adversely affect the oil pump.

Gear housing fluid pressure

10.31— 10.80 MPa {105.2— 110.1 kgf/cm

2

, 1,496— 1,566 psi}

49 1232 670B

49 H002 671

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49 G032 3A4A

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THERMOMETER

50—60
{122—140 }

°

°

F

GAUGE

CLOSE VALVE
COMPLETELY

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THERMOMETER

50—60
{122—140 }

°

°

F

GAUGE

OPEN VALVE
COMPLETELY

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