Infiniti G37 Coupe. Manual - part 1064

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WHEEL ALIGNMENT

WHEEL ALIGNMENT

Wheel Alignment Inspection

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Description

• Measure wheel alignment under unladen conditions. 
NOTE:
“Unladen conditions” means that fuel, engine coolant, and lubricant are full. Spare tire, jack, hand tools and
mats are in designated positions.

General Information and Recommendations

• A four-wheel thrust alignment should be performed.
- This type of alignment is recommended for any NISSAN/INFINITI vehicle.
- The four-wheel “thrust” process helps ensure that the vehicle is properly aligned and the steering wheel is

centered.

- The alignment rack itself should be capable of accepting any NISSAN/INFINITI vehicle.
- The rack should be checked to ensure that it is level.
• Make sure the machine is properly calibrated.
- Your alignment equipment should be regularly calibrated in order to give correct information.
- Check with the manufacturer of your specific equipment for their recommended Service/Calibration Sched-

ule.

 Alignment Process

IMPORTANT:
Use only the alignment specifications listed in this Service Manual.
• When displaying the alignment settings, many alignment machines use “indicators”: (Green/red, plus or

minus, Go/No Go). Do not use these indicators.

- The alignment specifications programmed into your machine that operate these indicators may not be cor-

rect.

- This may result in an ERROR.
• Some newer alignment machines are equipped with an optional “Rolling Compensation” method to “com-

pensate” the sensors (alignment targets or head units). Do not use this “Rolling Compensation” method.

- Use the “Jacking Compensation Method”. After installing the alignment targets or head units, raise the vehi-

cle and rotate the wheels 1/2 turn both ways.

- See Instructions in the alignment machine you're using for more information on this.

Preliminary Check

Check the following:
• Tires for improper air pressure and wear.
• Road wheels for runout. Refer to 

WT-92, "Inspection"

.

• Wheel bearing axial end play. Refer to 

RAX-5, "Inspection"

.

• Ball joint axial end play of suspension arm. Refer to 

RSU-28, "Ball Joint"

.

• Shock absorber operation.
• Each mounting point of axle and suspension for looseness and deformation.
• Each of front lower link, rear lower link, radius rod, rear suspension member, suspension arm and shock

absorber for cracks, deformation, and other damage.

• Vehicle height (posture).

ADJUSTMENT

Camber

If outside the standard value, adjust with adjusting bolt (1) in front
lower link (2).

CAUTION:

After adjusting camber, be sure to check toe-in.

Standard

Camber: Refer to 

RSU-28, "Wheel Alignment"

.

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WHEEL ALIGNMENT

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Toe-In

• If toe-in is not within the specification, adjust with adjusting bolt (1)

in rear lower link (2).

CAUTION:

Be sure to adjust equally on RH and LH side with adjusting
bolt.

- If toe-in is not still within the specification, inspect and replace any

damaged or worn suspension parts.

Standard

Toe-In: Refer to 

RSU-28, "Wheel Alignment"

.

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REAR LOWER LINK & COIL SPRING

ON-VEHICLE REPAIR

REAR LOWER LINK & COIL SPRING

Exploded View

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REAR LOWER LINK & COIL SPRING

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Removal and Installation

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REMOVAL

1.

Remove tires with power tool.

2.

Set suitable jack under rear lower link to relieve the coil spring tension.

3.

Loosen mounting bolts and nuts of rear lower link inside of suspension member, and then remove mount-
ing bolts and nuts inside of axle with power tool.

4.

Slowly lower jack, then remove upper seat, coil spring and rubber sheet from rear lower link.

5.

Remove mounting bolts and nuts inside of suspension member to remove rear lower link with power tool.

INSTALLATION

Note the following, and install in the reverse order of removal.
• Make sure that upper seat is attached as shown in the figure.

CAUTION:

Make sure that the projecting parts (A) on upper seat (1)
inside is securely fitted on the bracket (2) tabs (B).

• Match up rubber seat indentions and rear lower link grooves and

attach.

• Install the coil spring by aligning the lower end of the large diame-

ter side to the step (A) between the rubber seat (1) and the rear
lower link (2).

CAUTION:

Make sure spring is not up side down. The top and bottom are
indicated by paint color.

• Perform the final tightening of rear suspension member and axle

installation position (rubber bushing) under unladen condition with
tires on level ground.

Inspection

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INSPECTION AFTER REMOVAL

Check rear lower link, bushing and coil spring for deformation, crack, and damage. Replace rear lower link
and coil spring if there are.

INSPECTION AFTER INSTALLATION

• Check wheel alignment. Refer to 

RSU-28, "Wheel Alignment"

.

1.

Suspension arm

2.

Stopper rubber

3.

Stabilizer connecting rod mounting 
bracket

4.

Stabilizer connecting rod

5.

Mount stopper

6.

Damper assembly

7.

Suspension member

8.

Stabilizer bar

9.

Stabilizer bushing

10. Stabilizer clamp

11. Upper seat

12. Coil spring

13. Ball seat

14. Rubber seat

15. Rear lower link

16. Front lower link

17. Radius rod

18. Cotter pin

19. Axle assembly

20. Shock absorber

21. Bound bumper cover

22. Shock absorber mounting bracket

23. Mounting seal

24. Cap

Refer to 

GI-4, "Components"

 for symbols in the figure.

: Body

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