Steering axis inclination angle—To check
The steering axis inclination angle is the angle at which the steering axis is inclined inwards from the vertical when viewed from the front of the car.
The angle is built into the front suspension and cannot be adjusted and will remain, correct providing the camber angle is correct. The relationship between the steering axis inclination and camber angles is such that the steering axis inclination angle will alter as the camber angle alters.
The steering axis inclination angle is given in the General Data Section”.
1. Prepare the car. See under “Preparation of Car”.
2. Apply a suitable steering axis Inclination angle checking gauge to the wall of the tyre and check the steering
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axis inclination angle, taking care to follow the manu-facturer’s instructions, avoiding any front wheel “run-out” which should be positioned horizontally and the bulge in the tyre above its point of contact with the ground. Note the gauge reading.
3. Carry out the same procedure with the opposite front wheel and make a note of the steering axis Inclination angle.
4. When the steering axis inclination angles are incorrect and the camber angle is known to be within the specified limits, the front suspension must be dis-mantled and each detail examined for wear and accidental damage.
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