What is thrust angle alignment? The thrust angle is an imaginary line drawn perpendicular to the centerline of the rear axle along the centerline of the vehicle. The thrust angle is used to determine if the rear axle is aligned with the center of the vehicle, as is the front axle.
What does thrust angle alignment mean?
The thrust angle measures axle alignment by comparing the angle of the rear axle to the centerline of your vehicle. Looking at a car from above, one would draw the thrust line perpendicular to the rear axle. This identifies the direction the rear wheels want to roll.
Does the thrust angle cause drag?
The thrust line refers to the “target” direction of the rear axle. … A positive thrust angle attempts to steer the vehicle to the left, while a negative thrust angle attempts to steer the vehicle to the right. This forces the driver to pull the steering wheel to the right or left to compensate.
How do I find the thrust angle?
For example, the distance between the mounting holes on the DA 100 is 2.75. If you want a right thrust angle of 2.5 degrees then: extra length = 2.75 * tan(2.5) = 0.120. The left side of the engine must be extended .120 more than the right to have a 2.5 degree thrust angle.
Which angle is called thrust angle?
The thrust angle is the imaginary line 90 degrees from the centerline of the rear axle.
What causes thrust angles?
The thrust angle is an imaginary line drawn perpendicular to the centerline of the rear axles. It compares the direction the rear axle is pointing to the centerline of the vehicle. … In addition, rear toe-in adjustments can create a thrust angle that is independent of axle angle or implied axle angle.
How do you know if you need a rear axle alignment?
You may notice one or more of the following alignment issues:
- Uneven or rapid tire wear.
- Tilted steering wheel when driving straight ahead.
- Loud steering.
- Drag left or right.
- Squeaky tires.
What is the most important orientation angle?
This is the angular direction of the wheels towards or away from each other when viewed from the front. Toe-in is the most critical wear angle. Tires that “close” face each other. Tires that “toe out” away from each other.
Which alignment angle causes the least tire wear?
A pair of inboard front or rear wheels on the leading edges have outboard toe wheels. The toe angle of the front or rear wheels is measured in fractions of an inch, millimeter or degree. The lack of forward-facing front wheels causes the least amount of tire wear.