Infiniti M45 (Y34). Manual - part 555

 

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Infiniti M45 (Y34). Manual - part 555

 

 

FRONT SUSPENSION ASSEMBLY

FSU-7

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FSU

5.

Place the dent of alignment gauge onto the projection of center
plate (special service tool) and tightly contact them to measure.

CAUTION:

If camber, caster, or kingpin inclination angle is outside
the standard, check front suspension parts for wear and
damage, and replace suspect parts if necessary.

King pin inclination angle is reference value, no inspec-
tion is required.

Toe-In Inspection

Measure toe-in using the following procedure.

WARNING:

Always perform the following procedure on a flat surface.

Make sure that no person is in front of vehicle before push-
ing it.

1.

Bounce front of vehicle up and down to stabilize the posture.

2.

Push vehicle straight ahead about 5 m (16 ft).

3.

Put a mark on base line of the tread (rear side) of both tires at
the same height of hub center. These are measuring points.

4.

Measure distance “A” (rear side).

5.

Push vehicle slowly ahead to rotate wheels 180 degrees (1/2
turn).

If wheels have rotated more than 180 degrees (1/2 turn), try the
above procedure again from the beginning. Never push vehicle
backward.

6.

Measure distance “B” (front side).

Standard value

Camber, caster, kingpin inclination angles:

Refer to 

FSU-16, "SERVICE DATA"

 .

SEIA0241E

AFA050

Standard value

Total toe-in

: Refer to 

FSU-16, "SERVICE DATA"

 .

SFA234AC

FSU-8

FRONT SUSPENSION ASSEMBLY

Components

AES0008G

1.

Mass damper

2.

Mass damper bracket

3.

Tower bar bracket

4.

Gasket

5.

Strut mounting insulator bracket

6.

Strut mounting insulator

7.

Spring upper seat

8.

Rubber seat

9.

Bound bumper

10. Coil spring

11.

Strut assembly

12

Tower bar

13. Front cross bar

14. Member stay

15. Dynamic dumper

16. Cotter pin

17. Suspension arm

18. Front suspension member

19. Stabilizer connecting rod

20. Stabilizer clamp

21. Stabilizer bushing

22. Stabilizer bar

SEIA0399E

COIL SPRING AND STRUT

FSU-9

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FSU

COIL SPRING AND STRUT

PFP:55302

Removal and Installation

AES0009O

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-

23, "FRONT DISC BRAKE"

 .

CAUTION:

Avoid depressing brake pedal while brake caliper is removed.

3.

Remove harness of wheel sensor from strut assembly. Refer to 

BRC-63, "WHEEL SENSORS"

 .

CAUTION:

Do not pull on wheel sensor harness.

4.

Remove mounting nuts of brake hose from strut assembly.

5.

Remove stabilizer connecting rod upper nut, separate strut assembly and stabilizer connecting rod with
power tool.

6.

Remove cotter pin and lock nut of steering outer socket.

7.

Use a ball joint remover (special service tool) to remove steering
outer socket from strut assembly. Be careful not to damage ball
joint.

CAUTION:

To prevent damage to threads and to prevent ball joint
remover (special service tool) from coming off, and tempo-
rarily tighten mounting nuts.

8.

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

9.

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

CAUTION:

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

10. Remove mass damper and mass damper bracket.

11. Remove tower bar and tower bar bracket with power tool.

12. Remove mounting nuts on strut mounting insulator, then remove gasket, strut mounting insulator bracket

and strut assembly from vehicle.

INSTALLATION

Refer to 

FSU-8, "Components"

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

CAUTION:

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

Attach strut mounting insulator bracket as shown in the figure.

SGIA0397E

SEIA0246E

FSU-10

COIL SPRING AND STRUT

Disassembly and Assembly

AES0009P

DISASSEMBLY

CAUTION:

Make sure piston rod on strut assembly is not damaged when removing components from strut
assembly.

1.

Install strut attachment (special service tool) to strut assembly
and fix it in a vice.

CAUTION:

When installing strut attachment (special service tool) to
strut assembly, wrap a shop cloth around strut assembly to
protect it from damage. 

2.

Using a spring compressor (commercial service tool), compress
coil spring between spring upper seat and spring lower seat (on
strut) until coil spring is free.

CAUTION:

Be sure spring compressor (commercial service tool) is
securely attached to coil spring. Compress coil spring.

3.

After making sure coil spring is free between spring upper seat and spring lower seat of strut assembly,
then remove piston rod lock nut.

4.

Remove strut mounting insulator, spring upper seat, rubber seat, coil spring and bound bumper from strut
assembly.

5.

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

CAUTION:

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

6.

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

INSPECTION AFTER DISASSEMBLY 
Strut Inspection

Check strut assembly for deformation, cracks, damage, and replace if necessary.

Check piston rod for damage, uneven wear, distortion, and replace if necessary.

Check welded and sealed areas for oil leakage, and replace if necessary.

Strut Mounting Insulator and Rubber Parts Inspection

Check strut mounting insulator, strut mounting insulator bracket for cracks and rubber parts for wear. Replace
them if necessary. 

Coil Spring Inspection

Check coil spring for cracks, wear, damage and replace if necessary.

SEIA0296E

SEIA0297E

 

 

 

 

 

 

 

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