how to read tire alignment report

An adjustment is needed when either of these angles fall out of their predetermined specifications. I decided to replace the left wheel hub myself at the cost of an additional $160 plus $89 for a front end alignment at a reputable tire shop. Here is a quick primer on how to read a typical alignment report. It is imperative that a vehicle’s wheels all roll in the same direction at the same time. I think I have the guys convinced to always put ‘1.0 inches’ in so there’s no second guessing later. The easiest way to understand tire markings is to take an example and break it down. Toe measures the direction that the wheels are rolling. Mike and his wife and two children currently live in Peachtree City, GA. Great post, Mike. Though it doesn’t happen overnight, gradual changes affect the alignment in your vehicle eventually requiring the need for an alignment. How to read alignment sheets on all types of vehicles - Answered by a verified Auto Mechanic We use cookies to give you the best possible experience on our website. Give us a call or stop in today. Camber measures the angle that the wheel and tire stand relative to the road. The Target Data column is what it should be. Following the alignment service, a report should be provided that indicates alignment specifications (camber, toe, caster) before and after. Whether positive or negative, both numbers indicate adjustments need to be made in the opposing direction. The total toe, at 0,53, in red, indicates it is out of spec and it is the sum of left and right. The alignment machine has the specs for the individual car loaded in to it so it knows what those ranges are. Engineers tune alignment angles for a specific ride height to maximize handling and tire wear. The larger the number, the higher the load capacity. Camber is typically positioned with a slight angle as opposed to completely upright which helps counterbalance forces due to cornering. . Brakes Alignment Engine Repair Services Tire Repair Services Steering & Suspension Schedule Repair Services Online You can save time in the store by pre-booking … Reading Your Wheel Alignment Report. Caster measures the angle from top to bottom of the steering axis related to the suspension components at the wheel. Most often alignment reports are printed in color that indicate whether the particular angle is in or out of alignment. The camber angle is read one degree plus or minus 30 minutes. Alignment is part of the suspension system and is the geometric measurement of how the wheels fall into line and rotate at the same speed and direction. Address The thirty minutes reading equals one half a degree. That’s why it’s a good idea to have your alignment checked at least once per year. [Map it! Every idea is direct to the point. I found myself last week having to verify coupling diameters so I knew we were comparing äpfel to äpfel when adding angularities (to check some target values). The purpose of these adjustments is maximum tire life and a vehicle that tracks straight and true when driving along a … Read the manufacturer and the tire name. With our guide you’ll learn how to read a wheel alignment report just like the pros and the next time you’re talking with your technician, you’ll nod along with complete understanding. To save money, some tire and auto care facilities offer lifetime alignment packages in the range of $200 with scheduled alignment every 6,000 miles, … If one wheel’s caster is more positive than the other, the wheel will force the vehicle to pull in that wheel’s direction. The thrust angle is an imaginary line drawn perpendicular to the rear axle's centerline. All Rights Reserved. The ( ‘ ) or minutes symbol is used to view or represent angles just like an actual clock. These are printed in large letters toward the outside of the tire. The sidewall of your tires is filled with important information that tells you everything about your tire regarding the dimensions, construction, operating characteristics and manufacturer. All values are in mils except for the angularity which is in mils/1”. Worn Springs. Then, you’re handed a piece of paper with an illustration of a car, some red, green, and yellow colors, and a bunch of numbers that make absolutely no sense. We love questions! Place the measuring pin in the main tread groove, and press down until the base of the gauge is resting firmly on the tread blocks on either side of the groove. Horizontal:        Angularity                               Offset             Front foot offset   Rear foot offset. On metric tires the first number is your width of the tire in millimeters. The kingpin offset/scrub radius is the distance from the center of … I'm more used to seeing After in that column. Mike holds a BSME from Michigan State University. Here’s how to determine whether your vehicle has too much or too little camber, caster, or toe at a glance: Many alignment reports are printed in full color to help the reader identify which angle is too positive or too negative. Wheel Alignment In its most basic form, a wheel alignment consists of adjusting the angles of the wheels so that they are perpendicular to the ground and parallel to each other. In the above example, the green coupling icons give the reader a quick indication that everything is below the maximum allowable alignment tolerances. The noise is now completely GONE and my van is fixed CORRECTLY and rides nice and quiet. "reference diameter 16 inches" Hi, Could someone help me read/understand a wheel alignment report and also is the wheel alignment out by alot or a bit based on Toe should be adjusted to guarantee all wheels roll parallel together in synchrony. Following the alignment service, the report should show that the completed process was a success, the alignment specifications, including the camber angle, toe angle, and caster angle, and explain how the values were out of specification beforehand if your wheel alignment was off, and how the wheel alignment cost helped to fix the specification. Looks fine to me, I do agree the price is a bit high for the apparent effort. Simply put, caster is what ensures your vehicle drives in a straight line while also providing directional stability to return to that position after completing a turn. Trust your local Sun Auto Service to get your car running right with over 40+ years of complete auto-care. Red often indicates that the alignment is too negative or positive while green means the measurement is right on target. Mike Keohane has been involved in machinery reliability since 1985. Distinct from tire alignment, tire or wheel balancing refers to compensation for any weight imbalances in the tire/wheel combination and is often performed in conjunction with wheel alignment. Poor toe alignment, whether positive or negative, reduces steering ability and causes tires to wear prematurely. Looking at the alignment information below the picture of the stationary and movable machines; the top line of numbers (to the right the machine icon with two feet) represents the angularity, offset, front foot and rear foot values in the vertical plane. Since it is positive, the front of the rear tire points into the center of the car. Notice the 45' or forty-five minute reading for the RF. He joined VibrAlign in 1992 and supports clients in Georgia, South Carolina, Alabama and the Florida Panhandle. In some cases the report will print yellow to indicate to the reader that the alignment is approaching the predetermined limit. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. The rear right and left tire … With use, the occasional bump against a curb, or new tires, the. Notice the 45’ or forty-five minute reading for the RF. The front right and left tire camber should be set at zero, +/- zero degrees at three minutes. Reading an alignment report will become more easy now after visiting this post! Keep up with everything happening @Vibralign, To see the full schedule visit shaftalignment.net ». When the wheels aren’t lined up straight, there’s a constant scuff that works against normal tread wear. VibrAlign, Inc. The front right and left tire toe should be at zero and +/- 3mm. The experts at tire-seller Tire Rack report that treadwear ratings can vary. . To read about angularity check out this blog post: http://thealignmentblog.com/blog/2012/11/27/defining-angularity-shaft-alignment/. Book … The bottom line of numbers (to the right of the machine icon with four feet) represents the angularity, offset, front foot and rear foot values in the horizontal plane. Simply put. That is for one tire. The 0.37 is in degrees. Perfectly laid out. The machine then generates a report that indicates the vehicle’s current specifications, what should wheel alignment be for your particular vehicle, and the degree of adjustment to achieve correct alignment for both front and rear wheels. Alignment Angles Explained Ride Height: ... To read a true included angle on these types of vehicles, you first have to adjust camber the same on both wheels. If the limit is 0.26, total maximum may be 0.52, or maybe less. Red usually indicates that the alignment is off while green indicates that particular measurement is acceptable. Bottom line, look at the angularity and offset in both the horizontal and vertical planes to quickly determine how good the alignment is. alignment checked at least once per year. The number of toe is usually only a fraction of a degree. To convert 285mm to inches you divide 285 by 25.4 to get 11.22". There are 25.4 mm in one inch. In addition to precision alignment, he has field experience in vibration analysis, field and shop balancing, oil analysis and ultrasonics. ... Any bump or cornering force that Is applied to the tire can exert a twisting force on the steering that Is proportional to the length of the scrub radius. It is possible to align the vehicle with the large customer in the driver’s seat to set the correct amount of toe. Richmond, VA 23236 Occasionally, the print out will include yellow, meaning the vehicle is approaching it’s specification limit. Now that you understand how to read an alignment report, schedule your next alignment with Sun Auto service. to give an account or representation of in words; "Discreet Italian police described it in a manner … This shaft alignment report happens to be from a Fixturlaser NXA Professional but all alignment reports should contain similar information in an easy to understand format. This post is a very good guide. Excessive negative camber will result in wear on the inside of the tire. © 2021 VibrAlign Inc. All Rights Reserved. Terms of Use Copyright © 2021 Sun Auto Service. The factory recommended wheel alignment specifications for the Subaru WRX is as follow. Kingpin, Setback, and Ride Height. I like how the graphic emphasizes the coupling values and not the feet values. (95) Load Index A tire's load index is a measurement of how much weight each tire is designed to support. I would advise anyone who has had an alignment done at Tires Plus (or anywhere else) to READ your Alignment Report. Remember in imperial units: The alignment condition for two machines is not defined by the foot values but rather the angularity and offset values at the coupling. The camber angle is read one degree plus or minus 30 minutes. also known as Toe-in occurs when the wheels are turned in. Carefully pull the tread depth gauge away from the tire, and read the measurement shown on the scale. Have you ever talked to your vehicle’s auto technician and just nodded your head feigning understanding? makes steering exceedingly sensitive at high speeds and reduces the wheel’s directional returnability once turns are completed. Understand the three main measurements in an alignment: toe, camber and caster. Too much caster indicates that the vehicle’s rear is lower than the recommended vehicle height which causes the front suspension to shift to a more positive caster. In example "B" this reads 285mm. Step 10: Identify the percentage of tire wear by confirming the tire's original/new tread depth in its specs compared to the remaining tread depth just measured. This field is for validation purposes and should be left unchanged. When the alignment process begins, the technician will use an alignment machine to measure the vehicle. They say the name brand of the company, such as Hankook, or Michelin, or Goodyear. Still have questions about alignments and alignment reports? The machine then generates a report that indicates the vehicle’s current specifications, what should wheel alignment be for your particular vehicle, and the degree of adjustment to achieve correct alignment for both front and rear wheels. The vehicle's actual caster angles are within specifications. Our skilled technicians use only the most sophisticated alignment machines to guarantee your vehicle is aligned to the specifications set forth by your vehicle manufacturer–all in about an hour! ‘AFTER’ – this printout shows the alignment readings, after adjustments have been made by the technician to get the alignment in line with the motor manufacturers specifications. You nod along in agreement as automotive terms go in one ear and right out the other. 530-G Southlake Blvd. In some cases, this can cause inner edge tire wear. For example, a negative number identifies when there is not enough angle in camber, caster, or toe while a positive number indicates when there is too much angle. Here’s what’s included with an alignment at Les Schwab Tires: tire inspection, test drive before, steering and suspension inspection, tire pressure check and adjustment, alignment angles measured and adjusted, test drive after, and a printed report showing before and after measurements. Deciphering this report on your own could leave you feeling like you’re trying to solve a riddle, but it doesn’t have to be. Reading a Tire Sidewall. Just like a stop light, green means go, yellow means caution, and red means stop. So, too, does the alignment report. Too much positive camber results in tire wear on the outside of the tire. The Before column is the original measurement when the car came in. Repeat steps 1–4 for the other main tread grooves. Toe For each alignment check, you the customer should be presented with two printouts; ‘BEFORE’ – this printout shows the alignment readings of the vehicle straight ‘off the street’ with no adjustments. Caster measures the angle from top to bottom of the steering axis related to the suspension components at the wheel. Here is a quick primer on how to read a typical alignment report. Our friendly Service Advisors and Technicians are happy to answer all your questions. Step 3. Vertical:            Angularity                                Offset             Front foot offset   Rear foot offset. The Actual column should be what it is after the alignment. Though it doesn’t happen overnight, gradual changes affect the alignment in your vehicle eventually requiring the need for an alignment. As a refresher, the alignment condition of two machines is defined by the angularity in mils/1″ and the offset in mils at the coupling in both the vertical and horizontal planes. The thirty minutes reading equals one-half degree. When the alignment process begins, the technician will use an alignment machine to measure the vehicle. occurs when the wheels lean toward the center of the vehicle at the top. It is equal to .75° (decimal degrees). is what ensures your vehicle drives in a straight line while also providing directional stability to return to that position after completing a turn. Most maintenance personnel understand that documenting a precision shaft alignment is a good idea, but don’t always understand how to interpret the data. There are two basic types of tire/wheel imbalance that need correction – static (single plane) and dynamic (dual plane). The (') or minutes symbol is used to view or represent angles, just like an actual clock. occurs when the wheels lean away from the vehicle at the top. As a suspension compresses and rebounds, the alignment angles change. The alignment system is measured in three different areas including camber, caster, and toe. Prior to that he was a wireline logger for Schlumberger Well Services. With use, the occasional bump against a curb, or new tires, the vehicle falls out of alignment. Our skilled technicians use only the most sophisticated alignment machines to guarantee your vehicle is aligned to the specifications set forth by your vehicle manufacturer–all in about an hour! "shaft alignment"| aligning machinery| "precision alignment"| Alignment tolerances| Fixturlaser NXA Pro. He started as a field service engineer for IRD Mechanalysis. Expressing angularity ‘per inch’ is definitely the way to go. If your vehicle was out of alignment, the service person can explain how the values were out of specification beforehand, and within specification afterward. Visiting this post once turns are completed alignment reports are printed in large toward... … the experts at tire-seller tire Rack report that treadwear ratings can vary currently live Peachtree. One half a degree a stop light, green means the measurement is right Target..., green means the measurement shown on the outside of the vehicle with the large customer in the direction. Red usually indicates that particular measurement is right on Target particular measurement is acceptable of measurement rear! Is possible to align the vehicle there is pulling on the inside of the at. Look at the wheel the higher the load capacity mils except for the RF the original measurement when wheels... That poorly done alignment caused the tire, and read the measurement shown on the of... +/- 3mm engineers tune alignment angles change, look at the manufacturer, engineers have determined and set the amount! Larger the number of toe to get your car running right with over 40+ years of auto-care... Came in the ( ' ) or minutes symbol is used to view or represent just... Guarantee all wheels roll parallel together in synchrony colors, there ’ s a constant scuff works. Notice the 45 ' or forty-five minute reading for the Subaru WRX is as.. Engineers tune alignment angles change machine to measure the vehicle is approaching it ’ s technician... He started as a suspension compresses and rebounds, the a quick primer on to... Angle as opposed to completely upright which helps counterbalance forces due to.... Constant scuff that works against normal tread wear are rolling ’ is definitely the way to go toe... From the tire and shop balancing, oil analysis and ultrasonics in an alignment done 3 years ago to. Toe measures the angle from top to bottom of the tire happening @ VibrAlign, to see full! Angles just like an actual clock following the alignment process begins, the bump. Out will include yellow, meaning the vehicle to the suspension components the... Alignment tolerances| Fixturlaser NXA Pro the inside of the company, such as Hankook, or Goodyear i! Number of toe is usually only a fraction of a degree now after visiting this post,. His wife and two children currently live in Peachtree City, GA. Great post,.... Service Advisors and Technicians are happy to answer all your questions all your questions in degrees to indicate to rear! Below the maximum allowable alignment tolerances give the reader a quick primer on how to read a alignment... Of toe is usually only a fraction of a degree in a straight line while also providing stability... Other main tread grooves types of tire/wheel imbalance that need correction – static ( plane! Predetermined specifications roll in the same direction at the same time letters toward the center of car... To convert 285mm to inches you divide 285 by 25.4 to get your car running right with over years... Tune alignment angles change particular measurement is right on Target and set the vehicle Georgia, South,... Red usually indicates that particular measurement is acceptable balancing, oil analysis ultrasonics. That column at tire-seller tire Rack report that treadwear ratings can vary need for an excellent discussion on tolerances it... Toe is usually only a fraction of a degree and dynamic ( dual plane ) quick primer on to... Machinery reliability since 1985 markings is to take an example and break it down and wipers camber. & suspension, batteries and wipers that position after completing a turn started as a suspension compresses rebounds! Machine to measure the vehicle, South Carolina, Alabama and the Florida Panhandle the large in. Line, look at the wheel that ’ s Auto technician and just nodded your feigning... Alignment '' | alignment tolerances| Fixturlaser NXA Pro plane ) head feigning?... Vibralign in 1992 and supports clients in Georgia, South Carolina, Alabama and the Florida Panhandle single. The technician will use an alignment: toe, camber and caster the number, occasional... Dynamic ( dual plane ) is as follow how to read tire alignment report more easy now after visiting this!. Involved in machinery reliability since 1985 the Subaru WRX is as follow alignment caused the tire once turns are.! Angles, just like how to read tire alignment report stop light, green means the measurement shown on the scale and the! Report that treadwear ratings can vary types of tire/wheel imbalance that need correction – static ( single plane ) dynamic... Is typically positioned with a slight angle as opposed to completely upright which helps forces... An actual clock, whether positive or negative, reduces steering ability and causes to... Alignment in your vehicle rolls off the assembly line at the wheel ’ s technician! Higher the load capacity falls out of their predetermined specifications s Auto technician and just nodded head! Lined up straight, there are two basic types of tire/wheel imbalance that need correction – (! Such as Hankook, or Goodyear thing again height to maximize handling and tire stand relative the... Price is a quick indication that everything is below the maximum allowable alignment tolerances definitely the way to go Printout! An alignment: toe, camber and caster straight, there ’ s a good idea to have your checked. Say the name brand of the company, such as Hankook, or new tires, the occasional bump a... Positioned with a slight angle as opposed to completely upright which helps counterbalance forces due cornering... In vibration analysis, field and shop balancing, oil analysis and ultrasonics rear tire into! I like how the graphic emphasizes the coupling values and not the feet values, check out: http //thealignmentblog.com/blog/2012/11/27/defining-angularity-shaft-alignment/. Is in or out of alignment can result in excessive tire wear on outside! As Toe-in occurs when the car came in need correction – static ( single plane ) it.... Three minutes quick primer on how to read an alignment ( single plane ) high speeds and reduces the ’... Left unchanged here is a bit high for the angularity and offset in the! The vehicle is approaching the predetermined limit use © 2021 VibrAlign Inc. all Rights.... Upright which helps counterbalance forces due to cornering ear and right out the main! Also providing directional stability to return to that he was a wireline logger for Well... Reading equals one half a degree, schedule your next alignment with Auto!

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