Infiniti F50. Manual - part 566

COIL SPRING AND STRUT

FSU-11

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Installation position of spring upper seat as shown in the fig-
ure.

5.

Fix strut mounting insulator, then tighten piston rod lock nut with
the specified torque.

CAUTION:

Be careful not to deform strut mounting insulator.

6.

Gradually release spring compressor (commercial service tool), and remove coil spring.

CAUTION:

Loosen while making sure coil spring attachment position does not move.

7.

Remove strut attachment (special service tool) from strut assembly.

8.

Install actuator plate onto strut assembly.

9.

Fix strut mounting insulator, then tighten actuator plate fixing nut with the specified torque.

CAUTION:

Be careful not to deform actuator plate and strut mounting insulator.

SEIA0247E

SFA261B

FSU-12

SUSPENSION ARM

SUSPENSION ARM

PFP:55501

Removal and Installation

EES000U0

REMOVAL

1.

Remove tire with power tool.

2.

Remove undercover with power tool.

3.

Remove cotter pin of lower ball joint, then loosen mounting nut.

4.

Use a ball joint remover (suitable tool) to remove suspension arm from strut assembly. Be careful not to
damage ball joint boot.

CAUTION:

To prevent damage to threads and to prevent ball joint remover (suitable tool) from coming off,
and temporarily tighten lock nuts.

5.

Remove fixing bolts and nuts then remove suspension arm from vehicle.

INSPECTION AFTER REMOVAL 
Visual Inspection

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Check suspension arm and bushing for deformation, cracks, or damage. If any non-standard condition is
found, replace it.

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Check boot of ball joint for cracks, or damage, and also for grease leakage. If any non-standard condition
is found, replace it.

Ball Joint Inspection

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Manually move ball stud to confirm it moves smoothly with no binding.

Swing Torque Inspection

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Hook spring scale at cotter pin mounting hole. Confirm spring
scale measurement value is within specifications when ball stud
begins moving.

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If it is outside the specified range, replace suspension arm
assembly.

Rotating Torque Inspection

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Attach mounting nut to ball stud. Check that rotating torque is
within specifications with a preload gauge (special service tool).

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If it is outside the specified range, replace suspension arm
assembly.

Axial End Play Inspection

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Move tip of ball joint in axial direction to check for looseness.

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If it is outside the specified range, replace suspension arm assembly.

Standard value

Swing torque:

           0.5 - 3.4 N·m (0.06 - 0.34 kg, 5 - 30 lb)

Measured value of spring scale:

           8.8 - 59.6 N (0.90 - 6.08 kg, 1.98 - 13.41 lb)

SDIA1143E

Standard value

Rotating torque:

            0.5 - 3.4 N·m (0.06 - 0.34 kg, 5 - 30 lb)

SDIA1150E

Standard value

Axial end play

: 0 mm (0 in)

SUSPENSION ARM

FSU-13

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INSTALLATION

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Refer to 

FSU-5, "Components"

  for tightening torque. Tighten in the reverse order of removal.

CAUTION:

Refer to component parts location and do not reuse non-reusable parts.

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After installing suspension arm, check wheel alignment and adjust if necessary. Refer to 

FSU-16, "SER-

VICE DATA"

 .

FSU-14

STABILIZER BAR

STABILIZER BAR

PFP:56230

Removal and Installation

EES000U1

REMOVAL

1.

Remove tire with power tool.

2.

Remove undercover with power tool.

3.

Remove mounting nut on upper position of stabilizer connecting rod with power tool. 

4.

Remove stabilizer clamp mounting bolts and nuts with power tool.

5.

Remove stabilizer bar from vehicle.

INSPECTION AFTER REMOVAL

Check stabilizer bar, stabilizer connecting rod, stabilizer bushing and stabilizer clamp for deformation, cracks
and damage, and replace if necessary.

INSTALLATION

●

Refer to 

FSU-5, "Components"

  for tightening torque. Tighten in the reverse order of removal.

CAUTION:

Refer to component parts location and do not reuse non-reusable parts.

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Tighten bolts and nuts for tightening stabilizer clamp. Tightening order is Front LH, Rear RH, Front RH,
Rear LH.

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Stabilizer bar uses pillow ball type connecting rod. Position ball
joint with case on pillow ball head parallel to stabilizer bar.

SFA449BB