Infiniti M35/M45 Y50. Manual — part 778
FRONT SUSPENSION ASSEMBLY
FSU-9
[2WD]
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FSU
.
Removal and Installation
NES000ID
REMOVAL
1.
For VK45DE engine models, disconnect related electric wires and hoses from engine assembly to remove
front suspension member with engine assembly. Refer to
2.
Remove cowl top panel and hood. Refer to
.
3.
For VQ35DE engine models, install engine slinger, and then hoist engine. Refer to
.
4.
Remove tires from vehicle with a power tool.
5.
Remove wheel sensor from steering knuckle. Refer to
.
CAUTION:
Do not pull on wheel sensor harness.
6.
Remove brake hose bracket. Refer to
7.
Remove undercover with a power tool.
8.
Remove cotter pin (1), and then loosen the nut.
9.
Remove steering outer socket (2) from steering knuckle (3) so
as not to damage ball joint boot (4) using the ball joint remover
(suitable tool).
CAUTION:
Temporarily tighten the nut to prevent damage to threads
and to prevent the ball joint remover (suitable tool) from
suddenly coming off.
10. Remove the mounting nut on the upper side of stabilizer con-
necting rod with a power tool, and then remove stabilizer con-
necting rod from transverse link.
11. Separate steering gear assembly and lower joint. Refer to
12. Remove rack stay. Refer to
.
13. Remove steering hydraulic piping bracket from front suspension member. Refer to
14. Remove the mounting nut and bolt on the lower side of shock absorber with a power tool, and then
remove shock absorber from transverse link.
15. Remove cotter pin of transverse link and steering knuckle, and then loosen nut.
16. Set jack under front suspension member.
17. Remove transverse link from steering knuckle so as not to damage ball joint boot using the ball joint
remover (suitable tool)
CAUTION:
Temporarily tighten the nut to prevent damage to threads and to prevent ball joint remover (suit-
able tool) from suddenly coming off.
18. Remove the mounting nuts of engine mounting insulator. Refer to
19. Remove the mounting bolts of member bracket, and then remove member bracket from front suspension
member with a power tool. Refer to
20. Remove the mounting nut and bolts of member stay, and then remove member stay from front suspension
member and vehicle with a power tool.
21. Remove the mounting nut of front suspension member with a power tool. Refer to
1.
Shock absorber mounting bracket
2.
Bound bumper
3.
Rubber seat
4.
Coil spring
5.
Shock absorber
6.
Upper link
7.
Steering knuckle
8.
Transverse link
9.
Washer
10. Steering stopper bracket
11. Stabilizer connecting rod
12. Stabilizer bar
13. Stabilizer bushing
14. Stabilizer clamp
15. Front suspension member
16. Rack stay
17. Member stay
18. Member bracket
19. Clamp
20. Cotter pin
21. Stopper rubber
Refer to
, for the symbols in the figure.
SGIA1183E
FSU-10
[2WD]
FRONT SUSPENSION ASSEMBLY
22. For VQ35DE engine models, gradually lower a jack to remove front suspension assembly from vehicle.
For VK45DE engine models, gradually lower a jack to remove front suspension assembly with engine
assembly from vehicle.
INSTALLATION
●
Installation is the reverse order of removal. For tightening torque, refer to
●
Perform final tightening of each of parts (rubber bushing), under unladen conditions, which were removed
when removing front suspension assembly. Check wheel alignment. Refer to
●
Adjust neutral position of steering angle sensor after checking wheel alignment. Refer to
ment of Steering Angle Sensor Neutral Position"
.
●
Check wheel sensor harness for proper connection. Refer to
.
COIL SPRING AND SHOCK ABSORBER
FSU-11
[2WD]
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FSU
COIL SPRING AND SHOCK ABSORBER
PFP:55302
Removal and Installation
NES000IE
REMOVAL
1.
Remove tires from vehicle with a power tool.
2.
Remove harness of wheel sensor from shock absorber. Refer to
CAUTION:
Do not pull on wheel sensor harness.
3.
Remove brake hose bracket. Refer to
4.
Remove the mounting nut on the upper side of stabilizer connecting rod with a power tool, and then
remove stabilizer connecting rod from transverse link.
5.
Remove mounting nut and bolt on the lower side of shock absorber with a power tool, and then remove
shock absorber from transverse link.
6.
Remove cotter pin of transverse link and steering knuckle, and then loosen nut.
7.
Remove transverse link from steering knuckle so as not to damage ball joint boot using the ball joint
remover (suitable tool).
CAUTION:
Temporarily tighten the nut to prevent damage to threads and to prevent ball joint remover (suit-
able tool) from suddenly coming off.
8.
Remove the mounting nuts of shock absorber mounting bracket, then remove shock absorber from vehi-
cle.
INSTALLATION
●
Installation is the reverse order of removal. For tightening torque, refer to
●
Perform final tightening of bolt and nut at the shock absorber lower side (rubber bushing), under unladen
conditions with tires on level ground. Check wheel alignment. Refer to
FSU-6, "Wheel Alignment Inspec-
●
Adjust neutral position of steering angle sensor after checking wheel alignment. Refer to
ment of Steering Angle Sensor Neutral Position"
●
Check wheel sensor harness for proper connection. Refer to
Disassembly and Assembly
NES000IF
DISASSEMBLY
CAUTION:
Do not damage shock absorber piston rod when removing components from shock absorber.
1.
Install strut attachment [SST] to shock absorber and secure it in
a vise.
CAUTION:
When installing the strut attachment to shock absorber,
wrap a shop cloth around strut to protect it from damage.
SEIA0296E
FSU-12
[2WD]
COIL SPRING AND SHOCK ABSORBER
2.
Using a spring compressor (commercial service tool), compress
coil spring between rubber seat and spring lower seat (on shock
absorber) until coil spring with a spring compressor is free.
CAUTION:
Be sure a spring compressor is securely attached coil
spring. Compress coil spring
3.
Make sure coil spring with a spring compressor between rubber
seat and spring lower seat (shock absorber) is free and then
remove piston rod lock nut while securing the piston rod tip so
that piston rod does not turn.
4.
Remove shock absorber mounting bracket, rubber seat, bound
bumper from shock absorber.
5.
Remove coil spring with a spring compressor, and then gradually release a spring compressor.
CAUTION:
Loosen while making sure coil spring attachment position does not move.
6.
Remove the strut attachment from shock absorber.
INSPECTION AFTER DISASSEMBLY
Shock Absorber Inspection
Check the following:
●
Shock absorber for deformation, cracks or damage, and replace it if a malfunction is detected.
●
Piston rod for damage, uneven wear or distortion, and replace it if a malfunction is detected.
●
For oil leakage, and replace it if a malfunction is detected.
Shock Absorber Mounting Bracket and Rubber Parts Inspection
Check shock absorber mounting bracket for cracks and rubber parts for wear. Replace it if a malfunction is
detected.
Coil Spring Inspection
Check coil spring for cracks, wear or damage, and replace it if a malfunction is detected.
ASSEMBLY
CAUTION:
Do not damage shock absorber piston rod when installing components to shock absorber.
1.
Install strut attachment [SST] to shock absorber and secure it in
a vise.
CAUTION:
When installing the strut attachment to shock absorber,
wrap a shop cloth around strut to protect it from damage.
2.
Compress coil spring using a spring compressor (commercial
service tool), and install it onto shock absorber.
SEIA0297E
SEIA0296E
SEIA0297E
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