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

2D-5 Wheels and Tires: 

Radial Tire Lead / Pull Description

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“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

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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

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Wheels and Tires:  2D-6

Repair Instructions

General Balance Procedures

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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

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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

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2D-7 Wheels and Tires: 

Wheel Removal and Installation

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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

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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

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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.

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Wheels and Tires:  2D-8

Specifications

Wheels and Tires Specifications

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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

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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

)

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