Suspension and Steering Linkage Systems

Question 1

What are the six functions a suspension system must perform?

Answer 1

• Provide a connection from the frame to the wheels
• Allow the wheels to move vertically over bumps
• Allow the wheels to pivot for steering
• Keep the wheels in relative alignment with the frame
• Support the vehicles mass
• Absorb and isolate road shock from the passengers

Question 2

What must suspension prevent?

Answer 2

Lateral (side to side), forward, or rearward movement of the wheels

Question 3

What classifies as sprung weight?

Answer 3

Any mass or vehicle component supported by the springs

Question 4

What classifies as un-sprung weight?

Answer 4

Any mass or vehicle component not supported by the springs

Question 5

What do suspension bushings do?

Answer 5

Support suspension components through their pivotal range, while providing noise and vibration isolation

Question 6

What do torsilastic bushings do?

Answer 6

• Provide maximum support while minimizing vibration and noise
• Allow adequate movement of suspension through twisting (shearing) action of rubber

Question 7

What four things should suspension bushings be inspected for?

Answer 7

• Severe weathering
• Distortion
• Polished areas
• Seized components

Question 8

What two tools can you use to remove a suspension bushing?

Answer 8

• Screw type press
• Hydraulic press

Question 9

When should bushing fasteners be tightened?

Answer 9

While the vehicle sits at ride height