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old_Homework #3 - Wheel Alignment

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    Chapter 18
1)  In your own words, define Toe or explain what Toe measures. 

2)   Why is Toe the alignment angle most responsible for tire wear? 

3)   Why will the Toe adjustment change slightly when a car is driven? 

spindle and strut parts

4)  Refer to figure 1.    As you adjust the Toe to become positive (increase the Toe-In),        what will happen to point C?            
   A)  It will more UP     
   B)  It will move towards the Front of the car     
   C)  It will move DOWN     
   D)  It will move towards the rear of the car     

5)  In your own words, define Camber or explain what camber measures. 

6)  Refer to figure 1.    Which letter points to the Spindle? 

7)  Refer to figure 1.   Which letter points to the Strut? 

8)  Refer to figure 1.   Which letter points to the Control Arm? 

9)  Refer to figure 1. As you adjust the camber to a more positive angle, what will happen to point C?      
   A)  It will more UP     
   B)  It will move towards the Front of the car     
   C)  It will move DOWN     
   D)  It will move towards the rear of the car 

10)  How would you adjust the camber to become more positive?     
   A)  Move the top of the strut towards the front of the car     
   B)  Move the top of the strut towards the rear of the car     
   C)  Move the top of the strut outward, away from the center of the car     
   D)  Move the top of the strut in towards the center of the car 

11)  How would you use move the control arm (Figure 1) to adjust for more negative camber?
   A)  Move component A IN, towards the center of the car.     
   B)  Move component A OUT, away from the center of the car     
   C)  Move the top of component B OUT, away from the center of the car     
   D)  Move the top of component B IN towards the center of the car 

12)  Why will a vehicle pull to the side having more positive camber? 

13)  In your own words, define Caster, or explain what caster measures.

14)  A car has 1° positive caster on the left side and 2° positive caster on the right side.  What will the driver of the car notice? 

15)  Why will positive caster help return steering to the center after going around a corner? 

16)  Caster is not considered a tire wear angle.   When might caster cause tires to wear out? 

17)  What does SAI stand for? 

18)  What are the three functions of SAI?  (page 411) 

19)  Which two angles make up the Included Angle? 

20)  In your own words, define the Turning Radius, or explain what turning radius measures. 

21)  In your own words, define the Setback, or explain what setback measures 

22)  Setback can occur from collision damage, or from a sub-frame that is improperly assembled when an engine or transaxle is replaced in a car.   How can Setback affect vehicle performance?  

     Chapter 19
23)  Why should you thoroughly inspect the steering and suspension system before an alignment? 

24)  What should you do for a prealignment inspection? 

25)  How will tires with too much toe-in show wear? 

26)  A tire is worn smooth on the inside edge of the tread.  
       Which two alignment angles can cause this? 

27)  A rear tire shows a diagonal wipe pattern.  What will cause this? 

28)  A what alignment angle is most affected by improper ride height?  

29)  What is the most common cause of a lower than specified ride height?  

30)  Define torque steer, or explain when the driver will notice torque steer. 

31)  Identify several causes for torque steer. 

32)  A “Dry Park check” will show loose steering components.   
      Describe how to perform a dry park check.  (page Steering Linkage Inspection pg 383)  

34)  Explain the Tire Checks to perform before an alignment (pg 420) 

35)  Which 3 alignment angles are normally adjusted during a wheel alignment? 

36)  Why should Toe be adjusted AFTER camber or caster? 

37)  Why do you need to turn the front tires left and right to measure Caster? 

38)  SAI is not adjustable.   What can cause the SAI angle to be out of specification? 

39)  Explain how to measure the Turning Radius 

40) Explain what Thrust Angle measures            

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