"Steps for better wheel alignment"
"wheel alignment coventry, MOT coventry (650 words)"
[ "Steps for better wheel alignmentThe most difficult and time-consuming part of the process is setting up your equipment to get accurate and repeatable results. The most important thing is to have a flat, level place to work, and as you'll read, we've come up with a simple way to do that so you can set up alignment in your garage, shop, or even the racetrack.Even if you're not racing, having all of your car's wheels pointed in the right direction is a good idea, and you might get surprised at how much better your car drives after an alignment, not to mention how much longer wheel alignment coventry of the tires are likely to lastSteps for better alignment;Scale and cross-weightKnowing your car's weight is helpful, but knowing how that weight is properly balanced is critical for a carFor an accurate corner weight, all four scale pads must be level, as deviations show up on the scales as a change in corner weightWe made a simple leveling system using a cheap laser level and a carpenter's square. The laser beam is on a universal square that is set on each pad of the scale. The square is usually marked in inch increments and each pad gets backed up to the same height.Adjusting the ground clearance by 1/2 inch to the left rear resulted in a 1.1 per cent increase in transverse weight to 49.2 per cent, representing a 0.8 per cent back wedge. Note that the left, rear and total weight has not changedCreate a settling routine to use after each weight adjustment, either by rocking the car back and forth on the scale or rocking the suspension. Verify your progress by weighing the car, lifting one corner, and rechecking the weight in the corner after settling. If the corner weights change, there is still some binding in the suspension. Refine your settling procedure until the results are repeatable before making any changes.Disconnect the front and rear pivot bars to eliminate the pivot bar binding effectRemember that weight lifting cannot move the weight front to back or left to right. Only physical movement or adding weight can change the layout of the carA set of jacks, some loose floor tiles, some heavy fishing line and weights, a steel ruler, two pieces of electrical wiring, a laser level, a free-standing square, a cheap Maximum Motorsports roll/toe gauge, and a few other odds and ends are all the tools you need to perform high precision alignments at home. Altogether, this equipment costs less than $200 and, when used correctly, can produce results as accurate as the best tune-up shop in town.Alignment Conditions Ackerman Effect:;Also called cornering, this occurs when the steering angle of the inside tire is greater than that of the outside tire as the wheels turn. Ackerman is desirable because it helps the front end turn into a corner.Camber:;The amount of deviation between the top edge of the tire and the true vertical line through the center of the wheel. If the top of the tire leans inward when viewed from the front, the camber is negative; if it leans outward, the deflection is positiveA tire's traction is always greatest when most of its contact patch is in contact with the road surface, and static camber can get adjusted to keep the tire vertical as the chassis leans in a cornerExcessive camber results in accelerated wear on the inner or outer tire arms, but most road cars can benefit from as little as 1-1.5 degrees of negative camber.Caster:;The deviation in degrees between an imaginary line passing through the upper and lower ball studs and a vertical line running through the centre of the wheel hub to the centre of the tire's contact patch on the ground. If the imaginary line slopes toward the rear of the vehicle when viewed from the side, the casting wheel is positiveif it leans forward, the caster is negative. A large amount of positive camber causes the wheels to struggle to the centre as the vehicle moves forward, resulting in more steering effort.Cross-Camber:;The difference in camber settings from side to side. Many circular track cars are set up to turn left with positive yaw on the inside wheel and negative yaw on the outside wheel.Cross-Caster: The difference in caster setup from side to side. On production vehicles, up to half a degree more positive caster is often used on the passenger side to compensate for the effect of the camber and prevent the vehicle from pulling to the outer edge of the road. Many oval racers run an even greater amount of cross-caster on the outside wheel to help the car turn left.Tread:;Tread is the difference in tread widths between the front and rear edges of the tires. If the track is wider at the front, the wheels get tapered; if the front track is narrower, especially in MOT coventry, the wheels are toe-in. Toe-in used on most brake and stock cars to compensate for steering play" ]