YH4
GRAND
VITARA
1. Paint
3F-4 WHEELS AND TIRES
Higher than Recommended Pressure Can Cause:
1. Hard ride
2. Tire bruising or carcass damage
3. Rapid tread wear at center of tire
Unequal Pressure on Same Axle Can Cause:
1. Uneven braking
2. Steering lead
3. Reduced handling
4. Swerve on acceleration
Valve caps should be kept on valves to keep dust and
water out.Lower than Recommended Pressure Can Cause:
1. Tire squeal on turns
2. Hard steering
3. Rapid and uneven wear on the edges of the tread
4. Tire rim bruises and rupture
5. Tire cord breakage
6. High tire temperatures
7. Reduced handling
8. High fuel consumption
MAINTENANCE AND MINOR ADJUSTMENTS
WHEEL AND TIRE
Wheel repairs that use welding, heating, or peening are not approved. All damaged wheels should be replaced.
STUDS
If a broken stud is found, see Section 3E (rear) or Section 3D (front) for Note and Replacement procedure.
MATCHED TIRES AND WHEELS
(For vehicle equipped with steel wheels)
Tires and wheels are matchmounted at the assembly plant.
This means that the radially stiffest part of the tire, or ªhigh spotº, is
matched to the smallest radius or ªlow spotº of the wheel.
This is done to provide the smoothest possible ride.
The ªhigh spotº of the tire is originally marked by paint dot on the
outboard sidewall. This paint dot will eventually wash off the tire.
The ªlow spotº of the wheel is originally marked by paint dot on the
wheel rim-flange. Properly assembled, the wheel rims' paint dot
should be aligned with the tires' paint dot as shown in left figure.
Whenever a tire is dismounted from its wheel, it should be re-
mounted so that the tire and wheel are matched. If the tire's paint
dot cannot be located, a line should be scribed on the tire and wheel
before dismounting to assure that it is remounted in the same posi-
tion.
INFLATION OF TIRES
The pressure recommended for any model is carefully calculated to give a satisfactory ride, stability, steering, tread
wear, tire life and resistance to bruises.
Tire pressure, with tires cold, (after vehicle has set for three hours or more, or driven less than one mile) should
be checked monthly or before any extended trip. Set to the specifications on the tire placard located on the side
of instrument panel.
It is normal for tire pressure increase when the tires become hot during driving. Do not bleed or reduce tire pressure
after driving. Bleeding reduces the ªCold Inflation Pressureº.
YH4
GRAND
VITARA
WHEELS AND TIRES 3F-7
TIRE
MOUNTING AND DEMOUNTING
Use tire changing machine to mount or demount tires. Follow equip-
ment manufacturer's instructions. Do not use hand tools or tire
irons alone to change tires as they may damage tire beads or wheel
rim.
Rim bead seats should be cleaned with wire brush or coarse steel
wool to remove lubricants, old rubber and light rust. Before mount-
ing or demounting tire, bead area should be well lubricated with ap-
proved tire lubricant.
After mounting, inflate to 240 kPa (35psi) so that beads are com-
pletely seated. Then adjust pressure to specified shown an tire
placard.
WARNING:
Do not stand over tire when inflating. Bead may break when
bead snaps over rim's safety hump and cause serious per-
sonal injury.
Do not exceed 240 kPa (35 psi) pressure when inflating. If
240 kPa (35 psi) pressure will not seat beads, deflate, re-lu-
bricate and reinflate. Over inflation may cause bead to break
and cause serious personal injury.
Install valve core and inflate to proper pressure.
TIRE REPAIR
There are many different materials and techniques on the market
to repair tires. As not all of these work on all types of tires, tire
manufacturers have published detailed instructions on how and
when to repair tires. These instructions can be obtained from the
tire manufacturer.
