Ford Focus manuals

Ford Focus Service Manual: Wheel Alignment Angles

Ford Focus Service Manual / Chassis / Wheels/Tires / Wheels / Wheel Alignment Angles

Camber

Negative and Positive Camber


Camber is the vertical tilt of the wheel when viewed from the front. Camber can be positive or negative and has a direct effect on tire wear.

Caster

Caster is the deviation from vertical of an imaginary line drawn through the pivot points (top of strut and lower ball joint), when viewed from the side. The caster specifications in this section will give the vehicle the best directional stability characteristics when loaded and driven. The caster setting is not related to tire wear. The caster setting is not adjustable.




Item Description
1 True vertical
2 Positive caster angle
3 Strut centerline
4 Pivot centerline


A backward tilt is positive (+) and a forward tilt is negative (-). Front caster adjustment is not a separate procedure on this vehicle. Front caster should fall within specification when the front camber is adjusted.

Toe

Positive Toe (Toe In)



Negative Toe (Toe Out)


The vehicle toe setting affects tire wear and directional stability.

Incorrect Thrust Angle (Dogtracking)




Item Description
1 Verticle centerline
2 Axle centerline
3 Thrust angle


Incorrect thrust angle (also known as dogtracking) is the condition in which the rear axle is not square to the chassis. Heavily crowned roads can give the illusion of dogtracking.

Wander

Wander is the tendency of the vehicle to require frequent, random left and right steering wheel corrections to maintain a straight path down a level road.

Shimmy

Shimmy, as experienced by the driver, is large, consistent, rotational oscillations of the steering wheel resulting from large, side-to-side (lateral) tire/wheel movements.

Shimmy is usually experienced near 64 km/h (40 mph), and can begin or be amplified when the tire contacts pot holes or irregularities in the road surface.

Nibble

Sometimes confused with shimmy, nibble is a condition resulting from tire interaction with various road surfaces and experienced by the driver as small rotational oscillations of the steering wheel. For wheel and tire diagnosis, refer to Section  204-04.

Poor Returnability/Sticky Steering

Poor returnability and sticky steering are used to describe the poor return of the steering wheel to center after a turn or steering correction.

Drift/Pull

Pull is a tugging sensation felt by the hands on the steering wheel that must be overcome to keep the vehicle going straight.

Drift describes what a vehicle with this condition does with the hands off the steering wheel.

Poor Groove Feel

Poor groove feel is characterized by little or no buildup of turning effort felt in the steering wheel as the wheel is rocked slowly left and right within very small turns around center or straight-ahead (under 20 degrees of steering wheel turn). Effort may be said to be "flat on-center."

Wheels
...

Front Suspension Wheel Studs
Special Tool(s) C-Frame and Screw Assembly 211-023 (T74P-3044-A1)   Item Part Number Description 1 1107 Wheel stud Re ...

More about Ford Focus:

Ford Focus Roof Opening Panel Motor Initialization
WARNING: Keep objects and body parts clear of the glass panel when carrying out the initialization procedure. During the initialization procedure, the glass panel closes with high force and cannot detect objects in its path. Failure to follow this instruction may result in serious personal i ...

© 2016-2019 Copyright www.ffguide.net