2001 NISSAN ALMERA N16 front suspension

Noise, Vibration and Harshness (NVH)
Troubleshooting
=NJSU0004NVH TROUBLESHOOTING CHARTNJSU0004S01Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
Reference page
SU-5, 17
SU-10, 21
Ð
Ð
Ð
SU-9, 20
SU-7
SU-11
SU-7
Ð
Ð
Ð
Ð
Ð
Ð
AX-3
AX-3
Refer to SUSPENSION
in this chart.
Refer to TIRES
in this chart.
Refer to ROAD WHEEL
in this chart.
BR-6
ST-5
Possible Cause
and SUSPECTED
PA R T S
Improper installation, looseness
Shock absorber deformation,
damage or deflection
Bushing or mounting deterioration
Parts interference
Spring fatigue
Suspension looseness
Incorrect wheel alignment
Stabilizer bar fatigue
Out-of-round
Imbalance
Incorrect air pressure
Uneven tire wear
Deformation or damage
Non-uniformity
Incorrect tire size
DRIVE SHAFT
AXLE
SUSPENSION
TIRES
ROAD WHEEL
BRAKES
STEERING Symptom
SUSPENSION
Noise´ ´ ´´´´ ´´ ´ ´ ´´
Shake´ ´ ´´ ´ ´´ ´ ´ ´´
Vibration´ ´ ´´´ ´´ ´ ´
Shimmy´´´´ ´ ´ ´ ´´´
Judder´´´ ´ ´ ´´´
Poor quality
ride or han-
dling´ ´ ´´´ ´´ ´ ´ ´
TIRES
Noise´ ´´´´´´ ´´ ´ ´ ´´
Shake´ ´´´´´ ´´´ ´ ´ ´´
Vibration´ ´´´ ´ ´
Shimmy´ ´´´´´´´ ´ ´ ´ ´´
Judder´ ´´´´´ ´ ´ ´ ´ ´´
Poor quality
ride or han-
dling´ ´´´´´ ´ ´ ´ ´
ROAD WHEEL
Noise´ ´´´´´´´´´
Shake´ ´´´´´´´´´
Shimmy,
Judder´´´´´´´´´
Poor quality
ride or han-
dling´´´´´´´
´: Applicable
FRONT SUSPENSION
Noise, Vibration and Harshness (NVH) Troubleshooting
SU-4

ComponentsNJSU0005
NAX016
1. Front suspension member
2. Stabilizer bar
3. Transverse link4. Member pin stay
5. Knuckle
6. Strut assembly7. Coil spring
8. Washer
FRONT SUSPENSION
Components
SU-5

SMA525A
On-vehicle Service
FRONT SUSPENSION PARTSNJSU0006Check front axle and front suspension parts for excessive play,
cracks, wear or other damage.
+Shake each front wheel to check for excessive play.
+Make sure that cotter pin is inserted.
+Retighten all axle and suspension nuts and bolts to the speci-
fied torque.
Tightening torque:
Refer to ªFRONT SUSPENSIONº, SU-5.
SFA392B
+Check strut (shock absorber) for oil leakage or other damage.
+Check suspension ball joint for grease leakage and ball joint
dust cover for cracks or other damage.
If ball joint dust cover is cracked or damaged, replace trans-
verse link.
SFA818AA
+Check spring height from top of wheelarch to the ground.
a) Vehicle must be unladen*, parked on a level surface, and tires
checked for proper inflation and wear (tread wear indicator
must not be showing).
*: Fuel, radiator coolant and engine oil full. Spare tire, jack,
hand tools and mats in designated positions.
b) Bounce vehicle up and down several times before measuring.
Standard height: Refer to SDS, SU-15.
c) Spring height is not adjustable. If out of specification, check for
worn springs or suspension parts.
SSU031
+Check suspension ball joint end play.
a) Jack up front of vehicle and set the stands.
b) Clamp dial indicator onto transverse link and place indicator tip
on lower edge of brake caliper.
c) Make sure front wheels are straight and brake pedal is
depressed.
d) Place a pry bar between transverse link and inner rim of road
wheel.
e) While raising and releasing pry bar, observe maximum dial
indicator value.
Vertical end play: 0 mm (0 in)
f) If ball joint movement is beyond specifications, remove and
replace it.
FRONT SUSPENSION
On-vehicle Service
SU-6

SFA975B
BALANCING WHEELSNJSU0042Preliminary InspectionNJSU0042S011. Check tires for wear and improper inflation.
2. Check wheels for deformation, cracks and other damage.
If deformed, remove wheel and check wheel runout.
a. Remove tire from wheel and mount wheel on a tire balance
machine.
b. Set dial indicator as shown in the illustration.
Wheel runout (Dial indicator value):
Refer to SDS, SU-15.
3. Check front wheel bearings for looseness.
4. Check front suspension for looseness.
5. Check steering linkage for looseness.
6. Check that front shock absorbers work properly.
7. Check vehicle posture (Unladen).
SMA829C
TIRE ROTATIONNJSU0043+Do not include the T-type spare tire when rotating the tires.
Wheel nuts:
: 98 - 118 N´m (10.0 - 12.0 kg-m, 72 - 87 ft-lb)
FRONT WHEEL ALIGNMENTNJSU0045Before checking front wheel alignment, be sure to make a prelimi-
nary inspection (Unladen*).
*: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand
tools and mats in designated positions.
SRA096A
Camber, Caster and Kingpin InclinationNJSU0045S01Camber, caster and kingpin inclination are preset at factory
and cannot be adjusted.
1. Measure camber, caster and kingpin inclination of both right
and left wheels with a suitable alignment gauge.
Camber, caster and kingpin inclination:
Refer to SDS, SU-14.
2. If camber, caster or kingpin inclination is not within
specification, inspect front suspension parts. Replace dam-
aged or worn out parts.
FRONT SUSPENSION
On-vehicle Service (Cont'd)
SU-7

AFA050
Toe-inNJSU0045S02Measure 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 the vehicle before
pushing it.
1. Bounce front of vehicle up and down to stabilize the posture.
2. Push the vehicle straight ahead about 5 m (16 ft).
3. Put a mark on base line of tread (rear side) of both tires at the
same height as hub center. These are measuring points.
SFA234AC
4. Measure distance ªAº (rear side).
5. Push the vehicle slowly ahead to rotate the wheels 180
degrees (1/2 turn).
If the 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 ªBº (front side).
Total toe-in:
Refer to SDS, SU-14.
SFA486A
7. Adjust toe-in by varying the length of steering tie-rods.
a. Loosen lock nuts.
b. Adjust toe-in by screwing tie-rods in and out.
Standard length ªLº:
Refer to ST-30, ªSDSº.
c. Tighten lock nuts to specified torque.
Lock nut tightening torque:
Refer to ST-15, ªPOWER STEERING GEAR AND
LINKAGEº.
SFA439BA
Front Wheel Turning AngleNJSU0045S031. Set wheels in straight-ahead position. Then move vehicle for-
ward until front wheels rest on turning radius gauge properly.
2. Rotate steering wheel all the way right and left; measure turn-
ing angle.
Do not hold the steering wheel on full lock for more than
15 seconds.
Wheel turning angle (Full turn):
Refer to SDS, SU-14.
FRONT SUSPENSION
On-vehicle Service (Cont'd)
SU-8

Coil Spring and Shock Absorber
COMPONENTS=NJSU0008
NAX017
1. Strut mount upper plate
2. Strut spacer
3. Strut mount insulator
4. Thrust bearing
5. Upper spring seat
6. Upper rubber seat
7. Bound bumper rubber
8. Coil spring
9. Shock absorber10. Wheel hub and steering knuckle
11. Cotter pin
12. Washer
13. Bush
14. Transverse link
15. Bush
16. Washer
17. Connecting rod
18. Member pin stay19. Suspension member
20. Washer
21. Bush
22. Washer
23. Bush
24. Clamp
25. Stabilizer
26. Washer
FRONT SUSPENSION
Coil Spring and Shock Absorber
SU-9

SFA956A
REMOVAL AND INSTALLATION=NJSU0009+Remove shock absorber fixing bolt and nut (to hoodledge).
+Do not remove piston rod lock nut on vehicle.
SSU002
DISASSEMBLYNJSU00101. Set shock absorber on vise, thenloosenpiston rod lock nut.
+Do not remove piston rod lock nut at this time.
2. Compress spring with Tool so that shock absorber mounting
insulator can be turned by hand.
WARNING:
Make sure that the pawls of the two spring compressors are
firmly hooked on the spring. The spring compressors must be
tightened alternately so as not to tilt the spring.
SSU003
3. Remove piston rod lock nut.
INSPECTIONNJSU0011Shock Absorber AssemblyNJSU0011S01+Check for smooth operation through a full stroke, both com-
pression and extension.
+Check for oil leakage on welded or gland packing portions.
+Check piston rod for cracks, deformation or other damage.
Replace if necessary.
Mounting Insulator and Rubber PartsNJSU0011S02+Check cemented rubber-to-metal portion for separation or
cracks. Check rubber parts for deterioration.
Replace if necessary.
Thrust BearingNJSU0011S06+Check thrust bearing parts for abnormal noise or excessive
rattle in axial direction.
+Replace if necessary.
Coil SpringNJSU0011S03+Check for cracks, deformation or other damage. Replace if
necessary.
FRONT SUSPENSION
Coil Spring and Shock Absorber (Cont'd)
SU-10

SFA508A
ASSEMBLYNJSU0012+When installing coil spring on strut, it must be positioned as
shown in the figure at left.
SFA957A
+When installing spring seat, make sure that it is positioned as
shown.
SSU035
Stabilizer Bar
REMOVAL AND INSTALLATIONNJSU0017+Remove stabilizer bar.
SFA625B
+When installing stabilizer, make sure paint and clamp face in
their correct directions.
SSU035
+When removing and installing stabilizer bar.
FRONT SUSPENSION
Coil Spring and Shock Absorber (Cont'd)
SU-11