wheel alignment VOLVO S70 1998 Owners Manual

Wear indicator
The tires have a so-called "wear indicator" in the form of a number of narrow strips running across or parallel to the
tread. When approx. 1/16" (1.6 mm) is left on the tread, these strips show up and indicate that the tire should be
replaced.
Tires with less than 1/16" (1.6 mm) tread have a very poor grip in rain or snow.
When replacing worn tires, it is recommended that the tire be identical in type (radial) and size as the one being
replaced. Using a tire of the same make (manufacturer) will prevent alteration of the driving characteristics of the
vehicle.
To improve tire economy:
Maintain correct tire pressure.
Drive smoothly: avoid fast starts, hard braking and tire screeching.
Tire wear increases with speed.
Correct front wheel alignment is very important.
Unbalanced wheels impair tire economy and driving comfort.
If the wheels are rotated, they should be kept on the same side of the car so that they revolve in the same direction
as prior to rotation.
Hitting curbs or potholes can damage the tires and/or wheels permanently.
Flat spots
All tires become warm during use. After cooling, when the vehicle is parked, the tires have a tendency to distort
slightly, forming flat spots. These flat spots can cause vibrations similar to the vibrations caused by unbalanced wheels.
They do, however, disappear when the tire warms up. The degree to which the flat spots form depends on the type of
cord used in the tire. Remember that, in cold weather, it takes longer for the tire to warm up and consequently longer
for the flat spot to disappear. CAUTION: The car must not be driven with wheels of different dimensions. The use of different size wheels can
seriously damage your car's transmission. *
* This also applies to models equipped with All Wheel Drive (AWD). pg. 87 Wheels and tires (cont.)
Snow chains
Snow tire chains can be used on your Volvo with the following restrictions:
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The engine is equipped with a multiport fuel injection system
Distributor ignition system
Firing order 1-2-4-5-3
Distributor ignition setting Not adjustable
Spark plugs Bosch FR 7 DC or Champion RC9YC
Spark plug gap 0.028" (0.7 mm)
Turbo -charged models: Champion RC8PYP (or equivalent)
Spark plug gap 0.03" (0.75 mm)
Tightening torque 18.4 ft. lbs. +/- 3.7 ft. lbs. (25 Nm +/- 5 Nm)
Front suspension
Spring strut suspension with integrated shock absorbers and control arm linked to the support frame. Power-assisted
rack and pinion steering. Safety type steering column.
The alignment specifications apply to an unladen car but include fuel, coolant, and spare wheel.
Toe-in measured on the wheel rims: 2.4 mm +/- 0.7 mm
Toe-in measured on tire sides: 2.9 +/- 0.9 mm
Rear Suspension
Delta-link individual rear-wheel suspension with longitudinal support arms, double link arms and track rods.
Toe-in measured on the tire sides: 4° +/- 10°
All specifications are subject to change without notice.

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