Mazda 6. Manual - part 233

ENGINE SPEED SENSING POWER STEERING 

N–15

N

Upper Bearing, Oil Seal Disassembly Note

1. Set the SST as shown.
2. Using a press, remove the oil seal and upper 

bearing without applying pressure to the edge of 
the valve housing.

Holder Disassembly Note

1. Cut away the staked area by using a drill.

Caution

• Carefully pull out the holder without 

damaging the U gasket.

2. Disassemble the holder.

Oil Seal, Inner Guide Disassembly Note

1. Set the SSTs into the valve side.
2. Install the SST to the gear housing.
3. Press out the oil seal and inner guide.

Mounting Rubber Disassembly Note

• Press the mounting rubber out from the gear 

housing using the SSTs and a press.

End Of Sie

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N–16

ENGINE SPEED SENSING POWER STEERING 

STEERING GEAR AND LINKAGE INSPECTION

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Rack Inspection

1. Inspect the rack for cracking, damage, and tooth wear. Replace it as necessary.
2. Measure the runout of the rack.

Runout

Near point A: 0.15 mm {0.006 in} max.
Near point B: 0.20 mm {0.008 in} max.

3. If not within the specification, replace the rack.

Tie-rod End Inspection

1. Inspect the tie-rod end for damage and boot cracks. Replace it as necessary.
2. Inspect the ball joint for looseness. Replace the tie-rod end as necessary.
3. Rotate the ball joint five times.
4. Measure the rotation torque of the ball joint using 

the SST and a pull scale.

Rotation torque

0.4—2.7 N·m {3.5—27.5 kgf·cm, 3.1—23.8 

in·lbf}

Pull scale reading

3.4—25.5 N {0.35—2.60 kgf, 0.8—5.7 lbf}

5. If not within the specification, replace the tie-rod 

end.

Tie rod Inspection

1. Inspect the tie rod for bending and damage. Replace it as necessary.
2. Inspect the ball joint for looseness. Replace the tie rod as necessary.
3. Swing the tie rod five times.
4. Measure the swinging torque using a pull scale.

Swinging torque

0.1—4.0 N·m {1—40.7 kgf·cm, 0.9—35.3 

in·lbf}

Pull scale reading

0.6—24.5 N {0.06—2.49 kgf, 0.2—5.50 lbf}

5. If not within the specification, replace the tie-rod.

End Of Sie

STEERING GEAR AND LINKAGE ASSEMBLY

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Caution

• Place copper plates, rag, or similar material in a vise, when secure the mounting bracket portion of 

the steering gear.

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ENGINE SPEED SENSING POWER STEERING 

N–17

N

1. Assemble in the order indicated in the table.

.

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1

Gear housing

2

Mounting rubber
(See 

N–18 Mounting Rubber Assembly Note

)

3

Oil seal
(See 

N–18 Oil Seal, Inner Guide Assembly Note

)

4

Inner guide
(See 

N–18 Oil Seal, Inner Guide Assembly Note

)

5

O-ring

6

Seal ring

7

Steering  rack

8

Backup ring

9

U-gasket

10

O-ring

11

Holder
(See 

N–19 Holder Assembly Note

)

12

Oil seal
(See 

N–20 Oil Seal Assembly Note

)

13

Valve housing

14

Upper bearing
(See 

N–20 Upper Bearing Assembly Note

)

15

Pinion shaft

16

Control valve

17

Seal ring
(See 

N–20 Seal Ring Assembly Note

)

18

Snap ring

19

O-ring

20

Bolt

21

Support yoke

22

Yoke spring

23

Adjusting cover
(See 

N–20 Adjusting Cover Assembly Note

)

24

Locknut (adjusting cover)

25

Washer

26

Tie rod

27

Boot

28

Boot band

29

Boot clamp

30

Locknut

31

Tie-rod end

32

Oil pipe

33

Return pipe

N–18

ENGINE SPEED SENSING POWER STEERING 

Mounting Rubber Assembly Note

1. Apply soapy water to the rubber part of the mounting rubber.
2. Press the mounting rubber until the mounting 

rubber end comes out completely from the gear 
housing using the SSTs and a press.

3. Reverse the gear housing, then press the 

mounting rubber until the mounting rubber end 
comes out completely from the other side. At this 
time, mounting rubber end and steel pipe are 
aligned.

Oil Seal, Inner Guide Assembly Note

1. Install a new O-ring and a new seal ring to the rack’s piston.
2. After installing the seal ring, seat it properly at the piston circumference.
3. Apply grease to a new oil seal and inner guide.
4. Install the oil seal to the SST.

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