What are the benefits of wheel alignment & wheel balancing?

Mastering DIY Wheel Alignment with QuickTrick

17/09/2016

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Wheel alignment is a critical aspect of vehicle maintenance, yet it's often overlooked by many car owners. The consequences of poor alignment can range from accelerated tyre wear and reduced fuel efficiency to compromised handling and safety, particularly at speed. While traditional garage alignments can be costly and inconvenient, the advent of innovative tools like the QuickTrick alignment system has put professional-grade precision within the reach of the home mechanic. This article delves into how the QuickTrick system works, demystifying the process and empowering you to achieve optimal alignment from the comfort of your own garage.

Can I use a string alignment system to measure my toe?
Our string alignment system can be used to measure toe, but toe plates are a quicker option. Toe plates only give you the total toe for the car, not the toe for each corner or wheel. As outlined in our Introduction to Motorsports Wheel Alignments lesson.
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Understanding the Fundamentals of Wheel Alignment

Before diving into the specifics of the QuickTrick system, it's essential to grasp the three primary angles that constitute a vehicle's wheel alignment: camber, caster, and toe. These angles, when correctly set, ensure your tyres make optimal contact with the road, providing stability, predictable handling, and even tyre wear.

Do I need to turn a wheel before a car alignment?
Do so as straight as possible, as turning the wheel even a little will pull/push a tire a bit and affect your alignment. If you have to turn, just make sure to bounce the car a good bit before running the check (I bounce from the door rails). Here's the tools that you'll need to measure toe: Tape measure: Preferably with mm graduations.

Camber

Camber refers to the inward or outward tilt of the tyre when viewed from the front of the vehicle. It's measured in degrees relative to a true vertical line running through the wheel's centre. If the top of the tyre tilts inwards, it's known as negative camber. Conversely, if it tilts outwards, it's positive camber. A small amount of negative camber can improve cornering stability by allowing more of the tyre's tread to remain in contact with the road during a turn. However, excessive positive or negative camber can lead to uneven tyre wear and affect straight-line stability.

Caster

Caster is the angle of the steering axis when viewed from the side of the vehicle. It's the difference, measured in degrees, between an imaginary line running through the upper and lower ball joints and a vertical line through the wheel hub. If this imaginary line tilts towards the rear of the car, it's positive caster. If it tilts towards the front, it's negative caster. Positive caster helps with straight-line stability, providing a self-centring action to the steering wheel, much like the front wheels of a shopping trolley. More positive caster generally means a more stable car at higher speeds, but it can make steering heavier at low speeds.

How does quicktrick alignment work?

Toe

Toe, or toe angle, is the difference in track width between the front and rear edges of the tyres, viewed from above. If the front edges of the tyres are closer together than the rear edges, the wheels are "toed-in". If they are further apart, they are "toed-out". Toe settings are crucial for tyre wear and steering response. Too much toe-in or toe-out will cause the tyres to scrub across the road, leading to rapid and uneven tyre wear. A slight toe-in is often used on rear-wheel-drive vehicles to compensate for forces that tend to push the wheels apart, while a slight toe-out is sometimes preferred for front-wheel-drive cars to enhance steering response.

What's the difference between a tracking check and laser wheel alignment?
Depends who you ask. Some people use the terms synonymously, while others hold laser wheel alignment is a more sophisticated process. A simple tracking check tends to cover only look at certain elements of the front wheels, while laser alignment will generally measure more points and angles on all four wheels.

The QuickTrick Alignment System: Components and Setup

The QuickTrick alignment system is designed for ease of use and precision, allowing enthusiasts to perform comprehensive alignments at home. The core of the system comprises several key components:

  • Aluminium Toe Bars: These bars attach securely to the rim edge of your wheels, providing a stable platform for measurements.
  • Digital Gauges: Highly accurate digital gauges that attach to the toe bars for precise readings of camber and caster, often measuring to within 0.1 of a degree.
  • Turning Plates: These allow the wheels to turn freely, essential for accurate caster measurements and ensuring the suspension settles correctly. QuickTrick plates feature magnetic scales for precise angle readings.
  • Steering Wheel Locking Tool: A simple yet effective device that locks the steering wheel in a perfectly straight-ahead position during measurements, ensuring consistency.

Preparing Your Vehicle for Alignment

Before any measurements can begin, proper preparation is paramount to ensure accurate results:

  1. Level Surface: While QuickTrick tools can compensate for minor unevenness, working on as level a surface as possible is always best. This minimises potential errors and simplifies the process.
  2. Tyre Pressure: Set all four tyres to their intended running pressure. Inconsistent tyre pressure can significantly affect alignment readings.
  3. Ballast the Car: For a race or performance alignment, it's advisable to simulate the driver's weight and fuel load. This ensures the alignment is set under realistic operating conditions.
  4. Install Turning Plates: Roll the car onto the turning plates, ensuring the wheels are straight as you do so. If using QuickTrick plates, mark the zero position for each wheel.
  5. Centre Steering: Use the QuickTrick steering wheel locking tool to secure the steering wheel in a perfectly straight-ahead position. This is crucial for consistent toe and caster measurements.
  6. Check Ride Height: Measure the front ride height. Many enthusiasts check alignment at static ride height and also at a simulated 'accelerated' ride height (e.g., 1.5 inches higher) to understand how the alignment changes under load.

Step-by-Step Alignment with QuickTrick

1. Measuring and Adjusting Camber

With the QuickTrick system, camber measurement is straightforward:

  1. Attach Toe Bars: Secure the aluminium toe bars to the rim edge of each front wheel.
  2. Zero the Gauge: Place the digital gauge on the ground in front of each front tyre and zero it. This calibrates the gauge for any slight unevenness in your working surface.
  3. Mount Gauge: Attach the digital gauge to its respective toe bar, ensuring it's square and securely seated.
  4. Read Camber: The gauge will display the camber angle in degrees, often with an 'up' arrow for positive camber or a 'down' arrow for negative camber. QuickTrick gauges are renowned for their accuracy, typically measuring to 0.1 of a degree.
  5. Adjust Camber: Adjustment methods vary by vehicle. For many older cars, like classic GM models, shims are added or removed between the upper A-arm cross shaft and the subframe. For modern vehicles with struts, adjustable camber/caster plates or eccentric fasteners are common. Make small, incremental adjustments, bouncing the suspension to settle it, and re-measuring until the desired camber is achieved.

2. Measuring and Adjusting Caster

Caster measurement with QuickTrick involves a precise turning sequence:

  1. Mount Gauge: With the QuickTrick alignment frame (toe bar) mounted on the wheel, attach the digital gauge to the vertical bracket. Ensure the alignment frame is vertical.
  2. Turn Wheel to 20 Degrees: Release the steering lock. Turn the steering wheel so the wheel you're measuring is precisely at 20 degrees on the turning plate. Zero the digital gauge at this point.
  3. Turn Wheel Opposite 20 Degrees: Turn the steering wheel back to centre, and then an additional 20 degrees in the opposite direction (a total of 40 degrees of movement from the initial zero point).
  4. Read and Calculate Caster: Read the digital gauge. The caster measurement is calculated by multiplying this reading by 1.5. Repeat the process for the opposite wheel.
  5. Adjust Caster: Like camber, caster adjustments depend on the vehicle. For shims-based systems, positive caster is typically increased by adding shims to the rear bolt of the upper A-arm cross shaft or removing them from the front. Remember to settle the suspension by bouncing the car after each adjustment, and re-check camber as caster adjustments can affect it.

3. Measuring and Adjusting Toe

Toe is the final alignment angle to set, as adjustments to camber and caster can influence it:

  1. Roll Car: Roll the car back a few feet off the turning plates and then roll it back on. This loads the tyres correctly and provides the most accurate readings.
  2. Lock Steering: Re-install the steering wheel locking tool to keep the wheel perfectly straight.
  3. Measure with Toe Bars: With the QuickTrick toe bars still attached to each side, slide two supplied tape measures into the dedicated slots at the front and rear of the frames.
  4. Read Measurements: Gently extend both tapes simultaneously and carefully read the measurements. If the front measurement is larger than the rear, you have toe-out. If the rear measurement is larger, you have toe-in.
  5. Adjust Toe: Adjust toe by loosening the jam nuts on the tie rod adjustment sleeve (located between each tie rod end). Rotate the sleeve to lengthen or shorten the tie rod, thus changing the toe. It's good practice to adjust both sides equally, counting threads to maintain symmetry. Re-measure after each adjustment until the desired toe is achieved.

Benefits of the QuickTrick System for DIY Alignment

The QuickTrick system offers significant advantages over traditional methods and even other DIY approaches:

Feature/BenefitQuickTrick SystemTraditional String MethodGarage Alignment
AccuracyHigh (digital gauges to 0.1 degree)Moderate (reliant on user precision)Very High (professional equipment)
Ease of UseVery High (intuitive setup, clear readings)Moderate (can be fiddly, time-consuming)Low (requires professional technician)
CostModerate upfront investment, significant long-term savingsVery Low (minimal material cost)High (recurring expense)
VersatilityMeasures camber, caster, toe; adaptable to various vehiclesPrimarily toe; camber/caster require separate toolsComprehensive, but limited to shop availability
PortabilityExcellent (can be used anywhere with a relatively flat surface)GoodNone
FeedbackInstant digital readingsManual measurements, requires calculationDigital printouts from machine

Common Alignment Specifications and Other Considerations

While specific alignment settings vary greatly depending on the vehicle, driving style, and intended use, here are some general guidelines and additional factors to consider:

  • Street Driving: For a daily driver, settings often favour tyre longevity and predictable handling. This might mean close to zero camber or a very slight negative camber (e.g., -0.5 degrees), moderate positive caster (e.g., +3 to +5 degrees for stability), and minimal toe-in (e.g., 1/16th to 1/8th inch total) to reduce tyre scrub.
  • Performance/Track Use: More aggressive settings are common here. Negative camber (e.g., -1.5 to -2.5 degrees or more) is often increased to maximise tyre contact during hard cornering. Higher positive caster (e.g., +5 to +7 degrees) enhances steering feel and stability. Toe settings might be slightly more aggressive (e.g., 1/8th inch toe-out for improved turn-in on front-wheel-drive, or a slight toe-in for rear-wheel-drive stability).
  • Cross Caster: Some manufacturers intentionally build in slightly more positive caster on the passenger side to compensate for road crown (the slight slope in roads designed for water drainage). This helps prevent the car from pulling towards the ditch.
  • Bump Steer: This phenomenon occurs when the suspension compresses or extends, causing the toe angle to change. It's often noticeable as the steering wheel moving on its own when hitting bumps. It's caused by the control arms and steering linkage travelling through arcs of unequal radii. While sometimes a toe adjustment can help, more severe cases may require a bump steer kit, which uses spacers to alter tie rod angles.

Frequently Asked Questions About QuickTrick Alignment

Q: Is a QuickTrick alignment as accurate as a professional garage alignment?
A: When used correctly and with proper preparation, the QuickTrick system offers a level of precision that rivals many professional systems, especially for enthusiasts. Its digital gauges measure to 0.1 of a degree, providing highly accurate readings.
Q: Do I need a perfectly level garage floor to use QuickTrick?
A: While a level surface is ideal, QuickTrick's digital gauges can be 'zeroed' on the surface you're working on. This feature compensates for minor unevenness, making it highly versatile for home use, even in slightly sloped garages.
Q: How often should I check my wheel alignment?
A: For a daily driver, checking alignment annually or every 10,000-12,000 miles is a good practice. However, if you hit a large pothole, curb, or notice uneven tyre wear or steering issues, it's advisable to check it immediately. For track or performance cars, alignment should be checked much more frequently, often after every track day or major suspension adjustment.
Q: Can I use QuickTrick to align all four wheels?
A: The primary QuickTrick systems are designed for front-wheel alignment (camber, caster, toe). While some users adapt them for rear toe measurements, dedicated rear alignment tools or string methods are generally used for the rear axle if adjustability exists.
Q: What tools do I need in addition to the QuickTrick system?
A: You'll need basic hand tools like spanners and sockets for adjustments, a reliable tyre pressure gauge, and potentially a tape measure for ride height checks. For shims-based adjustments, a selection of shims will be necessary. For strut-based adjustments, eccentric bolts or adjustable plates will be required.
Q: How long does a DIY alignment typically take with QuickTrick?
A: The initial setup might take a bit longer as you familiarise yourself with the system. However, once you get the hang of it, a full front alignment (checking and adjusting camber, caster, and toe) can often be completed within an hour or two, significantly faster than scheduling a garage visit.

Conclusion

The QuickTrick alignment system truly empowers the DIY enthusiast to take control of their vehicle's handling and tyre longevity. By understanding the principles of camber, caster, and toe, and following the systematic approach of the QuickTrick tools, you can achieve professional-grade alignment results at home. This not only saves money in the long run but also provides invaluable insight into your vehicle's dynamics. With the right tools and a little patience, you'll discover that performing your own wheel alignment can be a rewarding and enjoyable part of maintaining your pride and joy.

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