Mazda 6. Manual — part 234

ENGINE SPEED SENSING POWER STEERING

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5. Using the SST, place the oil seal and inner guide

at the edge of the steering rack’s pinion, and
remove the SST.

6. After installing the steering rack to the gear

housing, press the oil seal and inner guide using
the SSTs until the force required suddenly
increases.

Holder Assembly Note

1. Apply grease to the U-gasket and O-ring.
2. Assemble the U-gasket, backup ring and O-ring into the holder.
3. Assemble the SST to the steering rack.

4. Stake the holder to the cylinder using a punch.

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ENGINE SPEED SENSING POWER STEERING

Oil Seal Assembly Note

1. Apply grease to a new oil seal.
2. Press in the new oil seal using the SSTs.

Upper Bearing Assembly Note

1. Apply grease to a new upper bearing.
2. Press in the upper bearing using the SST.

Seal Ring Assembly Note

1. Install a new seal ring to the valve part of the pinion shaft using the SST.
2. After installing it, seat it properly using the SST.
3. Install the snap ring.

Adjusting Cover Assembly Note

1. Set the rack to the center position.
2. Tighten the adjusting cover to 4.9 N·m {50

kgf·cm, 36 in·lbf} three times, then return it 25

°

using the SST.

3. Apply sealant to the threads of the locknut.
4. Attach the locknut.

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ENGINE SPEED SENSING POWER STEERING

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5. Measure the pinion torque using the SST and a

pull scale.

Standard

Center of rack

±90°

0.8—1.2 N·m
{8.2—12.2 kgf·cm, 5.8—8.8 in·lbf}
[Pull scale reading
8—12 N {0.9—1.2 kgf, 1.8—2.6 lbf}]

Except center of rack

±90°

Less than 1.6 N·m
{16.3 kgf·cm, 11.8 in·lbf}
[Pull scale reading
Less than 16.7 N {1.7 kgf, 3.8 lbf}]

6. If not as specified, repeat steps 2 through 5.
7. Install the locknut using the SST (49 B032 320).

Tightening torque

40—49 N·m {4.1—4.9 kgf·m, 30—36 ft·lbf}

Hermetic sealing inspection

1. Connect the SSTs to the power cylinder section of the gear housing.
2. Apply 53.3 kPa {400 mmHg, 15.7 inHg} vacuum

with a vacuum pump and verify that it is held for at
least 30 seconds.

3. If the vacuum is not held, replace the oil seal.

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ENGINE SPEED SENSING POWER STEERING

POWER STEERING OIL PUMP REMOVAL/INSTALLATION

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1. Remove in the order indicated in the table.
2. Install in the reverse order of removal.

.

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POWER STEERING OIL PUMP DISASSEMBLY/ASSEMBLY

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Note

• The following procedure is for replacement of the O-ring and oil seal only. Replace the pump component if

other repairs are necessary.

1. Disassemble in the order indicated in the table.
2. Assemble in the reverse order of disassembly.

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1

Drive belt

2

Pressure switch connector

3

Pressure pipe

4

Suction hose

5

Power steering oil pump