2002 NISSAN ALTIMA torque

Installing the spare tire
The spare tire is designed for emergency
use. See specific instructions under the
heading ``Wheels and tires'' in the ``Main-
tenance and do-it-yourself'' section.
1. Clean any mud or dirt from the surface
between the wheel and hub.
2. Carefully put the spare tire on. Install and
tighten the wheel nuts by hand.
3. With the wheel nut wrench, tighten wheel
nuts alternately and evenly until they are
tight.4. Lower the vehicle slowly until the tire
touches the ground. Then, with the wheel
nut wrench, tighten the wheel nuts se-
curely in the sequence illustrated. Lower
the vehicle completely.
WARNING
cIncorrect wheel nuts or improperly
tightened wheel nuts can cause the
wheel to become loose or come off.
This could cause an accident.
cDo not use oil or grease on the wheel
studs or nuts. This could cause the
nuts to become loose.
cRetighten the wheel nuts when the
vehicle has been driven for 600 miles
(1,000 km) (also in cases of a flat tire,
etc.).
As soon as possible, tighten the wheel
nuts to the specified torque with a torque
wrench.
Wheel nut tightening torque:
80 ft-lb
(108 Nzm)Adjust tire pressure to the COLD pres-
sure.
COLD pressure: After vehicle has been
parked for three hours or more or driven
less than 1 mile (1.6 km).COLD tire pressures are shown on the tire
placard affixed to the driver's door, center
pillar.
5. With the spare tire installed on the ve-
hicle, place the damaged tire in the spare
tire storage area. Put the jack rod and
wheel nut wrench in the tool bag and
place the tool bag in the spare tire stor-
age area.
6. Place the spare tire cover and the trunk
floor carpeting over the damaged tire.
7. Install the jack in its storage area.
8. Close the trunk.
WARNING
cAlways make sure that the spare tire
and jacking equipment are properly
secured after use. Such items can
become dangerous projectiles in an
accident or sudden stop.
WCE0024
In case of emergency6-5
ZX

If the oil filter is to be changed, remove
and replace it at this time. See ``Chang-
ing engine oil filter'' later in this section.
CAUTION
Be careful not to burn yourself. The
engine oil may be hot.
c
Waste oil must be disposed of properly.
cCheck your local regulations.
6. Clean and reinstall the drain plug and a
new washer. Securely tighten the drain
plug with a wrench.Drain plug tightening torque:
22 to 29 ft-lb
(29 to 39 Nzm)
Do not overtighten.
7. Refill the engine with a recommended oil
through the oil filler opening, then install
the oil filler cap securely.
See the ``Technical and consumer informa-
tion'' section for drain and refill capacity.
The drain and refill capacity depends on the
oil temperature and drain time. Use these
specifications for reference only. Always
use the dipstick to determine when the
proper amount of oil is in the engine.
8. Start the engine. Check for leakage
around the drain plug. Correct as re-
quired.
9. Turn the engine off and wait several
minutes. Check the oil level with the
dipstick. Add engine oil if necessary.
WARNING
cProlonged and repeated contact with
used engine oil may cause skin can-
cer.
cTry to avoid direct skin contact with
used oil. If skin contact is made,
wash thoroughly with soap or hand
cleaner as soon as possible.
cKeep used engine oil out of reach of
children.
WDI0123
8-12Maintenance and do-it-yourself
ZX

Platinum-tipped spark plugs
It is not necessary to replace platinum-
tipped spark plugs as frequently as conven-
tional type spark plugs because they last
much longer. Follow the maintenance
schedule, but do not reuse the spark plugs
by cleaning or regapping.
cAlways replace spark plugs with rec-
ommended or equivalent ones.
WARNING
Be sure the engine and ignition switch
are off and that the parking brake is
engaged securely.
CAUTION
Be sure to use the correct socket to
remove the spark plugs. An incorrect
socket can damage the spark plugs.
REPLACING SPARK PLUGS
(QR25DE)
1. Disconnect the negative battery cable.
2. Remove the coil pack bolt.
3. Remove the coil pack/spark plug boot
from the spark plug.
4. Remove the spark plugs with a spark
plug socket.
The plug socket has a rubber seal that
holds the spark plug so it does not fall
when it is pulled out. Make sure each
spark plug is snugly fitted into the spark
plug socket.5. Fit the new plugs, one at a time, into the
spark plug socket and install them.Use
only the specified spark plugs.Turn
each plug several full turns by hand, then
tighten with the spark plug socket to the
correct torque. Do not overtighten.
Spark plug tightening torque:
14 to 22 ft-lb
(20 to 29 Nzm)
6. Install the coil pack/spark plug boot on
the spark plug by pushing it on until you
feel a snap.
7. Install the coil pack bolt.
Coil pack tightening torque:
48-65 in-lb
(5.4 - 7.3 Nzm)
8. Connect the negative battery cable.
REPLACING SPARK PLUGS
(VQ35DE)
If replacement is required, see your NIS-
SAN dealer for servicing.
WDI0005
SPARK PLUGS
8-20Maintenance and do-it-yourself
ZX

Tire chains must be installed only on the
front wheels and not on the rear wheels.
CHANGING TIRES AND WHEELS
Tire rotation
Tires should be rotated every 7,500 miles
(12,000 km).
See ``Flat tire'' in the ``In case of emergency''
section for tire replacing procedures.
As soon as possible, tighten the wheel
nuts to the specified torque with a nut
tightening torque:
80 ft-lb (107 Nzm)The wheel nuts must be kept tight-
ened to specifications at all times. It is
recommended that wheel nuts be
tightened to specification at each ro-
tation interval.WARNING
cAfter rotating the tires, check and
adjust the tire pressure.
cRetighten the wheel nuts when the
vehicle has been driven for 600 miles
(1,000 km) (also in cases of a flat tire,
etc.).
cDo not include the spare tire in the
tire rotation.
cFor additional information regarding
tires, refer to ``Important Tire Safety
Information'' in the Warranty Infor-
mation Booklet (US) or ``Tire Safety
Information'' in the Warranty and
Roadside Assistance Information
Booklet (Canada).
Tire wear and damage
WARNING
cTires should be periodically in-
spected for wear, cracking, bulging,
or objects caught in the tread. If
excessive wear, cracks, bulging, or
deep cuts are found, the tire(s)
should be replaced.
cThe original tires have a built-in
tread wear indicator. When the wear
indicator is visible, the tire(s) should
be replaced.
DI1035M
8-40Maintenance and do-it-yourself
ZX