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.
.
A6E0612W044
1
Gear housing
2
N–18 Mounting Rubber Assembly Note
)
3
N–18 Oil Seal, Inner Guide Assembly Note
)
4
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
12
)
13
Valve housing
14
N–20 Upper Bearing Assembly Note
)
15
Pinion shaft
16
Control valve
17
Seal ring
(See
)
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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