2003 NISSAN ALMERA N16 steering

Noise, Vibration and Harshness (NVH)
Troubleshooting
=NJAX0004NVH TROUBLESHOOTING CHARTNJAX0004S01Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
Reference page—
AX-15
—
AX-5, 24
—
AX-3, 23
—
—
SU-4
SU-4
SU-4
BR-6
ST-5
Possible cause and
SUSPECTED PARTS
Excessive joint angle
Joint sliding resistance
Imbalance
Improper installation, looseness
Parts interference
Wheel bearing damage
DRIVE SHAFT
AXLE
SUSPENSION
TIRES
ROAD WHEEL
BRAKES
STEERING
SymptomDRIVE SHAFTNoise, Vibration××———— —× ×××××
Shake×—×——— —× ×××××
AXLENoise — — —××—×—×××××
Shake — — —××—×—×××××
Vibration — — —××—×—××——×
Shimmy — — —××—— —×××××
Judder — — —×—— — —×××××
Poor quality ride or
handling———×××——×××——
×: Applicable
—: Not applicable
SMA525A
On-vehicle Service
FRONT AXLE PARTSNJAX0005Check 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 SU-5, “FRONT SUSPENSION”.
SFA805B
FRONT WHEEL BEARINGNJAX0006Check that wheel bearings operate smoothly.
Check axial end play.
Axial end play:
0.05 mm (0.0020 in)
If out of specification or wheel bearing does not turn smoothly,
replace wheel bearing assembly.
Refer to “Wheel Hub and Knuckle”, “FRONT AXLE”, AX-5.
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FRONT AXLE
Noise, Vibration and Harshness (NVH) Troubleshooting
AX-3

SAX008
2. Remove snap rings.
SFA905A
3. Press out bearing outer race.
INSPECTIONNJAX0012Wheel Hub and KnuckleNJAX0012S01Check wheel hub and knuckle for cracks by using a magnetic
exploration or dyeing test.
Snap RingNJAX0012S02Check snap ring for wear or cracks. Replace if necessary.
SFA921B
ASSEMBLYNJAX0013When removing baffle plate, replace it with a new one. (If baffle
plate is equipped)
When installing the baffle plate, press new plate so that it is in
contact with knuckle wall. Refer to figure at left. (If baffle plate
is equipped)
SAX009
1. Install inner snap ring into groove of knuckle.
2. Press new wheel bearing assembly into knuckle until it con-
tacts steering knuckle.
Maximum load P:
29 kN (3 ton, 3.3 US ton, 3.0 Imp ton)
CAUTION:
Do not press inner race of wheel bearing assembly.
Do not apply oil or grease to mating surfaces of wheel
bearing outer race and knuckle.
3. Install outer snap ring into groove of knuckle.
FRONT AXLE
Wheel Hub and Knuckle (Cont’d)
AX-8

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
—
—
—
SU-9, 20
SU-7
SU-11
SU-7
—
—
—
—
—
—
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 PARTS
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
—: Not applicable
FRONT SUSPENSION
Noise, Vibration and Harshness (NVH) Troubleshooting
SU-4

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 ROTATIONNJSU0043Do 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.
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FRONT SUSPENSION
On-vehicle Service (Cont’d)
SU-7

AFA050
To e - i nNJSU0045S02Measure 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 “A” (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 “B” (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 “L”:
Refer to ST-30, “SDS”.
c. Tighten lock nuts to specified torque.
Lock nut tightening torque:
Refer to ST-15, “POWER STEERING GEAR AND LINK-
AGE”.
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. Bushing
14. Transverse link
15. Bushing
16. Washer
17. Connecting rod
18. Member pin stay19. Suspension member
20. Washer
21. Bushing
22. Washer
23. Bushing
24. Clamp
25. Stabilizer
26. Washer
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FRONT SUSPENSION
Coil Spring and Shock Absorber
SU-9

Service Data and Specifications (SDS)
GENERAL SPECIFICATIONS (FRONT)=NJSU0020
Applied model QG15DE QG18DE YD22T
Suspension type Independent MacPherson strut
Shock absorber type Double-acting hydraulic
Stabilizer bar *1 Standard Standard
*1: Option for LX grade.
FRONT WHEEL ALIGNMENT (UNLADEN*1)NJSU0021
Standard
QG enigne YD engine
Camber
Degree minute (Decimal degree)Minimum −1°05′(−1.08°) −1°07′(−1.12°)
Nominal −0°20′(−0.33°) −0°22′(−0.37°)
Maximum 0°25′(0.42°) 0°23′(0.38°)
Left and right difference 45′(0.75°)
Caster
Degree minute (Decimal degree)Minimum 0°54′(0.90°) 0°53′(0.88°)
Nominal 1°39′(1.65°) 1°38′(1.63°)
Maximum 2°24′(2.40°) 2°23′(2.38°)
Left and right difference 45′(0.75°)
Kingpin inclination
Degree minute (Decimal degree)Minimum 13°52′(13.87°) 13°55′(13.92°)
Nominal 14°37′(14.62°) 14°40′(14.67°)
Maximum 15°22′(15.37°) 15°25′(15.42°)
Total toe-inDistance (A − B)
mm (in)Minimum 1 (0.04) 1.5 (0.059)
Nominal 2 (0.08) 2.5 (0.098)
Maximum 3 (0.12) 3.5 (0.138)
Angle (left plus right)
Degree minute (Decimal degree)Minimum 0°06′(0.10°) 0°08′(0.13°)
Nominal 0°11′(0.18°) 0°14′(0.23°)
Maximum 0°17′(0.28°) 0°20′(0.33°)
Wheel turning angle
Full turn*2Inside
Degree minute (Decimal degree)Minimum 34°00′(34.00°)
Nominal 37°00′(37.00°)
Maximum 38°00′(38.00°)
Outside
Degree minute (Decimal degree)Nominal 31°00′(31.00°)
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: On power steering models, wheel turning force (at circumference of steering wheel) of 98 to 147 N (10 to 15 kg, 22 to 33 lb) with
engine idle.
LOWER BALL JOINTNJSU0022
Swinging force “A”
(Measuring point: cotter pin hole of ball stud) N (kg, lb)7.8 - 824 (0.8 - 84, 1.8 - 185)
Turning torque “B” N·m (kg-cm, in-lb) 0.50 - 4.90 (5.1 - 50.0, 4.4 - 43.4)
Vertical end play “C” mm (in)0(0)
FRONT SUSPENSION
Service Data and Specifications (SDS)
SU-14

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).
SFA948A
CamberNJSU0030S02Camber is preset at factory and cannot be adjusted.
Camber:
Refer to SDS, SU-25.
If the camber is not within specification, inspect and replace
any damaged or worn rear suspension parts.
SFA614B
SFA234AC
To e - i nNJSU0030S03Toe-in is preset at factory and cannot be adjusted.
Measure toe-in using following procedure. If out of
specification, inspect and replace any damaged or worn rear
suspension parts.
WARNING:
Perform following procedure always on a flat surface.
Make sure that no person is in front of the vehicle before
pushing it.
1. Bounce rear 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 the tread (rear side) of both tires at
the same height of hub center. This mark is a measuring point.
4. Measure distance “A” (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 “B” (front side).
Total toe-in: A − B
Refer to SDS, SU-25.
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REAR SUSPENSION
On-vehicle Service (Cont’d)
SU-19