Suzuki Grand Vitara JB416 / JB420 / JB419. Manual — part 228

2D-5 Wheels and Tires:

Radial Tire Lead / Pull Description

S6JB0A2401006

“Lead / Pull” is the deviation of the vehicle from a straight
path on a level road even with no pressure on the
steering wheel.
Lead is usually caused by the following conditions.
• Improper tire and wheel alignment.
• Uneven brake assemblies.
• Tire construction.
The way in which a tire is built can produce lead in a
vehicle. An example of this is placement of the belt. Off
center belts on radial tires can cause the tire to develop
a side force while rolling straight down the road. If one
side of the tire has a little larger diameter than the other,
the tire will tend to roll to one side. This will develop a
side force which can produce vehicle lead.
The procedure in the figure (Lead Diagnosis) should be
used to make sure that wheel alignment is not mistaken
for tire lead.
• Part of the lead diagnosis procedure is different from

the proper tire rotation pattern currently in the owner
and service manuals. If a medium to high mileage tire
is moved to the other side of the vehicle, be sure to
check that ride roughness has not developed

• Rear tires will not cause lead.

Balancing Wheels Description

S6JB0A2401007

There are two types of wheel and tire balance: static and
dynamic. Static balance, as shown in figure, is the equal
distribution of weight around the wheel. Wheels that are
statically unbalanced cause a bouncing action called
tramp. This condition will eventually cause uneven tire
wear.

Dynamic balance, as shown in figure, is the equal
distribution of weight on each side of the wheel
centerline so that when the tire spins there is no
tendency for the assembly to move from side to side.
Wheels that are dynamically unbalanced may cause
shimmy.

1. Heavy spot wheel tramp

[A]: Before correction

2. Balance weights addition point

[B]: Corrective weights

3. C/L of spindle

1. Heavy spot wheel shimmy

[C]: Before correction

2. Balance weights addition point

[D]: Corrective weights

3. C/L of spindle

I2RH01240008-01

I2RH01240009-01

Wheels and Tires: 2D-6

Repair Instructions

General Balance Procedures

S6JB0A2406001

Deposits of mud, etc. must be cleaned from inside of rim.

WARNING

!

Stones should be removed from the tread in
order to avoid operator injury during spin
balancing and to obtain good balance.

Each tire should be inspected for any damage, then
balanced according to equipment manufacturer’s
recommendation.

Off-Vehicle Balancing
Most electronic off-vehicle balancers are more accurate
than the on-vehicle spin balancers. They are easy to use
and give a dynamic (two plane) balance. Although they
do not correct for drum or disc unbalance as does on-
vehicle spin balancing, this is overcome by their
accuracy, usually to within 1/8 ounce.

On-Vehicle Balancing
On-vehicle balancing methods vary with equipment and
tool manufacturers. Be sure to follow each
manufacturer’s instructions during balancing operation.

WARNING

!

Wheel spin should be limited to 35 mph (55
km/h) as indicated on speedometer.
This limit is necessary because speedometer
only indicates one-half of actual wheel speed
when one drive wheel is spinning and the
other drive wheel is stopped.
Unless care is taken in limiting drive wheel
spin, spinning wheel can reach excessive
speeds. This can result in possible tire
disintegration or differential failure, which
could cause serious personal injury or
extensive vehicle damage.

CAUTION

!

For vehicle equipped with ABS, using on-
vehicle balancing method with ignition
switch ON may set malfunction diagnostic
trouble code (DTC) of ABS even when system
is in good condition.
Never turn ignition switch ON while spinning
wheel.

Tire Rotation

S6JB0A2406002

To equalize wear, rotate tires according to figure. Radial
tires should be rotated periodically. Set tire pressure.

NOTE
Due to their design, radial tires tend to wear
faster in the shoulder area, particularly in
front positions. This makes regular rotation
especially necessary.

[A]: 5-tire rotation

NOTE
Applicable to vehicles equipped with 5
tires including spare tire all of which are
identical in size

[B]: 4-tire rotation

LH: Left-hand drive

RH: Right-hand drive

I3RH0A240001-01

2D-7 Wheels and Tires:

Wheel Removal and Installation

S6JB0A2406003

Removal

1) Loosen wheel nuts by approximately 180

° (half a

rotation).

2) Hoist vehicle.
3) Remove wheel.

CAUTION

!

Never use heat to loosen tight wheel because
application of heat to wheel can shorten life
of wheel and damage wheel bearings.

Installation
For installation, reverse removal procedure, noting the
following.
• Wheel nuts must be tightened in sequence and to

proper torque to avoid bending wheel or brake drum
or brake disc as shown in the figure.

NOTE
Before installing wheels, remove any build-
up of corrosion on wheel mounting surface
and brake disc mounting surface by scraping
and wire brushing. Installing wheels without
good metal-to-metal contact at mounting
surfaces can cause wheel nuts to loosen,
which can later allow a wheel to come off
while vehicle is moving.

Tightening torque
Wheel nut (a): 100 N·m (10.0 kgf-m, 72.5 lb-ft)

Tire Mounting and Dismounting

S6JB0A2406004

Use a tire changing machine to mount or dismount tires.
Follow equipment 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 a wire brush or
coarse steel wool to remove lubricants, old rubber and
light rust. Before mounting or dismounting a tire, bead
area should be well lubricated with approved tire
lubricant.
After mounting, inflate to specified pressure shown on
tire placard so that beads are completely seated.

WARNING

!

Do not stand over tire when inflating. Bead
may break when bead snaps over rim’s safety
hump and cause serious personal injury.
Do not exceed specified pressure when
inflating. If specified pressure will not seat
beads, deflate, re-lubricate and reinflate.
Over inflation may cause bead to break and
cause serious personal injury.

Install valve core and inflate to proper pressure.

Tire Repair

S6JB0A2406005

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 each tire
manufacturer.

IYSQ01240007-01

IYSQ01240008-01

Wheels and Tires: 2D-8

Specifications

Wheels and Tires Specifications

S6JB0A2407001

Tire size
: 225/70R16 102S, 225/65R17 101S or P225/70R16 101H

Wheel size
: 16 x 6 1/2 J or 17 x 6 1/2 J

Tightening torque
Wheel nut: 100 N·m (10.0 kgf-m, 72.5 lb-ft)

NOTE

• Tire inflation pressure should be checked when tires are cool.
• Specified tire size and tire inflation pressure should be found on tire placard or in owner’s manual

which came with the vehicle.

Tightening Torque Specifications

S6JB0A2407002

Reference:
For the tightening torque of fastener not specified in this section, refer to “Fastener Information in Section 0A”.

Fastening part

Tightening torque

Note

N

⋅m

kgf-m

lb-ft

Wheel nut

100

10.0

72.5

)

/ )