tire pressure NISSAN 350Z 2007 Z33 Power Steering System Workshop Manual

STEERING WHEEL
PS-7
C
D
E
F
H
I
J
K
L
MA
B
PS
Revision: 2006 November2007 350Z
STEERING WHEELPFP:48430
On-Vehicle Inspection and ServiceNGS0000A
CHECKING CONDITION OF INSTALLATION

Check installation condition of steering gear assembly, front sus-
pension, axle and steering column.

Check if movement exists when steering wheel is moved up and
down, to the left and right and to the axial direction.

Check if the mounting bolts for steering gear assembly are loose
or not. Refer to PS-17, "
POWER STEERING GEAR AND LINK-
AGE" .
CHECKING STEERING WHEEL PLAY
1. Set tires to the straight ahead, start engine, then turn steering wheel to the left and right lightly, and mea-
sure steering wheel movement on the outer circumference when steering wheel is turned up to the point
where tires start moving.
CHECKING NEUTRAL POSITION ON STEERING WHEEL

Check neutral position on steering wheel after confirming that front wheel alignment is correct. Refer to
PS-35, "
SERVICE DATA AND SPECIFICATIONS (SDS)" .
1. Set the vehicle to the straight ahead-direction, check if steering wheel is in the neutral position.
2. If it is not in the neutral position, remove steering wheel and reinstall it correctly.
3. If the neutral position cannot adjust in the two teeth of steering gear assembly, loosen tie-rod lock nuts of
steering outer sockets, then adjust tie-rods by the same amount in the opposite direction.
CHECKING STEERING WHEEL TURNING FORCE
1. Park vehicle on a level and dry surface, set parking brake.
2. Start engine.
3. Bring power steering fluid up to adequate operating temperature. [Make sure temperature of fluid is
approximately 50 to 80°C (122 to 176°F).]
4. Check steering wheel turning force when steering wheel has
been turned 540° from neutral position.
NOTE:
Multiply the distance (L) from the hook of spring scale to the
center of steering wheel by the measurement value with a spring
scale.
5. If steering wheel turning force is out of the specification, check
rack sliding force and relief hydraulic pressure of oil pump.
Regarding relief hydraulic pressure of oil pump, refer to PS-28,
"CHECKING RELIEF OIL PRESSURE" .
a. Disconnect lower joint and steering knuckle from steering gear assembly. Refer to PS-17, "
Removal and
Installation" , FA X - 4 , "Removal and Installation" .
b. Start and run engine at idle to make sure steering fluid has reached normal operating temperature.End play of the axle direction for steering wheel:
0 mm (0 in)
SGIA0348E
Steering wheel play on the outer circumference : 0 - 35 mm (0 - 1.38 in)
Steering wheel turning
force: 7.45 N·m (0.76 kg-m, 66 in-lb)
SGIA1136E

POWER STEERING GEAR AND LINKAGE
PS-17
C
D
E
F
H
I
J
K
L
MA
B
PS
Revision: 2006 November2007 350Z
POWER STEERING GEAR AND LINKAGEPFP:49001
Removal and InstallationNGS0000E
COMPONENTS
CAUTION:
Spiral cable may snap due to steering operation if steering column is separated from steering gear
assembly. Therefore fix steering wheel with a string to avoid turns.
REMOVAL
1. Set wheels in the straight-ahead position.
2. Remove undercover and tires from vehicle with power tool.
3. Remove front crossbar. Refer to FSU-8, "
Components" .
4. Confirm slit of lower joints fits with the projection on rear cover
cap, furthermore marking position on steering gear assembly
nearly fits with the projection on rear cover cap.
5. Remove cotter pin at steering outer socket, then loosen mount-
ing nut.
6. Use a ball joint remover (SST) to remove steering outer socket
from steering knuckle. Be careful not to damage ball joint boot.
CAUTION:
Tighten temporarily mounting nut to prevent damage to
threads and to prevent ball joint remover (SST) from com-
ing off.
7. Remove oil pipings (high pressure side and low pressure side)
from steering gear assembly, then drain fluid from pipings.
1. Cotter pin 2. Steering gear assembly 3. Rack mounting insulator
4. Rack mounting bracket
Refer to GI-11, "
Components" , for the symbols in the figure.
SGIA1471E
SGIA0349E
SGIA0341E