Infiniti F50. Manual - part 734

SUSPENSION ARM

RSU-11

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SUSPENSION ARM

PFP:55501

Removal and Installation

EES000UF

REMOVAL 

1.

Remove tire with power tool.

2.

Remove brake caliper with power tool. Hang it in a place where it will not interfere with work. Refer to 

BR-

30, "REAR DISC BRAKE"

 .

CAUTION:

Avoid depressing brake pedal while brake caliper is removed.

3.

Remove stabilizer connecting rod mounting bracket from suspension arm with power tool.

4.

Remove fixing bolts and nuts in suspension member side of suspension arm with power tool.

5.

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

6.

Use a ball joint remover (suitable tool) to remove suspension arm from axle. 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.

INSPECTION AFTER REMOVAL
Visual Inspection

●

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

●

Check boot of ball joint for cracks, or damage, and also for grease leakage.

Ball Joint Inspection

●

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

Swing Torque Inspection

CAUTION:

Before measuring, move ball joint at least ten times by hand to check for smooth movement.

●

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

●

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

Rotating Torque Inspection

●

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

●

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

Standard value

Swing torque:

            0.50 - 3.43 N·m (0.05 - 0.35 kg-m, 5 - 30 in-lb)

Measured value of spring scale:

            7.85 - 54.4 N (0.80 - 5.55 kg, 1.77 - 12.27 lb)

SDIA1143E

Standard value

Rotating torque:

             0.50 - 3.43 N·m (0.05 - 0.35 kg-m, 5 - 30 in-lb)

SDIA1150E

RSU-12

SUSPENSION ARM

Axial End Play Inspection

●

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

●

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

INSTALLATION

●

Refer to 

RSU-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.

●

Perform final tightening of rear suspension member installation position (rubber bushing) under unladen
condition with tires on level ground. Check wheel alignment. Refer to 

RSU-18, "SERVICE DATA"

 .

Standard value

Axial end play

: 0 mm (0 in)

RADIUS ROD

RSU-13

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RSU

RADIUS ROD

PFP:55110

Removal and Installation

EES000UG

REMOVAL

1.

Remove tire with power tool.

2.

Remove fixing bolt and nut in axle side of radius rod.

3.

Remove fixing bolt and nut in rear suspension member side of radius rod, then remove radius rod from
vehicle.

INSPECTION AFTER REMOVAL

●

Check radius rod and bushing for any deformation, crack, or damage. Replace if necessary.

INSTALLATION

●

Refer to 

RSU-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.

●

Perform final tightening of rear suspension member and axle installation position (rubber bushing) under
unladen condition with tires on level ground. Check wheel alignment. Refer to 

RSU-18, "SERVICE DATA"

.

RSU-14

FRONT LOWER LINK

FRONT LOWER LINK

PFP:55110

Removal and Installation

EES000UH

REMOVAL

1.

Remove tire with power tool.

2.

Set jack under rear lower link.

3.

Remove fixing bolt and nut between front lower link and rear suspension member.

4.

Remove fixing bolt and nut between front lower link and axle.

5.

Remove front lower link from vehicle.

INSPECTION AFTER REMOVAL

●

Check front lower link and bushing for any deformation, crack, or damage. Replace if necessary.

INSTALLATION

●

Refer to 

RSU-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.

●

Perform final tightening of rear suspension member and axle installation position (rubber bushing) under
unladen condition with tires on level ground. Check wheel alignment. Refer to 

RSU-18, "SERVICE DATA"

.