Free Guides on Brakes Shake - Machine the Rotors Or Replace Them?

If the steering wheel shakes when the brakes are applied, the brake rotors most likely have excessive side to side run-out or they are more commonly known as being warped. Auto techs call this brake shake or brake pulsation. Brake rotors being warped is not a dangerous condition by itself, but it can be very annoying. The brake pads may not need to be replaced, but if they are more than half worn it would be a good time to consider replacing them. Most shops will check brakes for free, it's best to make sure they use a micrometer to measure the thickness of the rotors to verify if they are legally able to be machined (also known as turned or resurfaced).
Replace or not.



Many vehicles today have very thin rotors from the factory, depending on the thickness there may not be an option to machine them. Many replacement rotors are low priced depending on the make and model of the vehicle. It may be a good idea to replace the rotors if the replacements are priced well, instead of machining the old ones. After machining the rotors they are physically thinner and more susceptible to being warped again. In the past I owned a vehicle that warped rotors frequently. I would machine them myself using the brake lathe at the shop I worked at and the rotors would warp again in about six months time. I finally bought some aftermarket replacement rotors for around $30 a piece and put those on and never had anymore pulsation problems.
Types of Brake Lathes. There are two types of brake lathes. There is the conventional brake lathe that the technician uses to machine the rotor off the vehicle. And there is the on the car brake lathe used to machine the brake rotor on the vehicle. The best way to machine brake rotors is on the car. The reason is because of the possibility of other components having run-out. When rotors are machined on the car, any run-out in the wheel hub is compensated for. The result is a much better cut that allows the rotor to be machined much more precisely. Rotors that are machined on the vehicle have less re-occurrences of being warped as quickly when compared to rotors being machined off the vehicle. So if possible consumers should opt to find a repair shop that has the capability to machine rotors on the car if needed. Auto repair shops that have on the car brake lathes realize the importance of having the right auto tools and equipment to service their customer's cars properly.

Free Car Top 10 Checklist - Avoid Breakdown

Every year the motorist is faced with the ordeal of the MOT test, unless their car is less than three years old. The purpose of an MOT is to ensure the vehicle complies with road safety and environmental standards. Without it car owners are unable to obtain a tax disc for driving on public roads.
But what does the MOT tester look out for? Is it car tyres or fuel emissions? It can become expensive when the vehicle fails and needs to be re-tested. To help achieve a first time pass, this 10 point checklist highlights the main components that are included in an MOT test:

1. Brakes
The car's brakes are tested on a 'roller brake tester' to assess their condition, performance and efficiency. Brakes that 'lock up' when applied will fail. Other areas to watch out for are loose brake pedals and signs of leaking brake fluid.
2. Doors and Mirrors
Ensure the doors open and close correctly, from the inside and the outside of the vehicle. Car locks need to work adequately. Wing and rear view mirrors must be present and in good condition. A cracked wing mirror will result in a fail.
3. Exhaust System and Emissions
The car will need to pass specific exhaust emission requirements, depending on its age and fuel type. The exhaust system must not have holes or leaks, often caused by rust.
4. Car Bodywork
Excessive rust corrosion, damage or sharp edges on the car's bodywork will result in a fail.
5. Wheels and Car Tyres
The tread depth on a car tyre must be a minimum of 1.6mm. The car tyre needs to be the correct type for the vehicle and have no signs of excessive wear or damage. It is recommended to consult a car tyres specialist to check this. Ensure all the wheel nuts are present as any missing will result in a fail. Spare tyres are not tested.
6. Windscreen, Wipers and Washer
The wiper blades need to be in good condition and the windscreen washer must contain fluid. The windscreen cannot have any large cracks and must have clear visibility.
7. Lights and Indicators
All lights and indicators need to work correctly, including the hazard lights. Check that the headlamps dip to the correct angle and are not loose.
8. Seats and seatbelts
Ensure all seats are secure in the upright position. It is compulsory for seatbelts to be fitted in the front and back of a car. They must be the correct type and in good, working condition.
9. Steering, suspension and horn
All three need to be in good condition and work correctly. Make sure the horn is the right type for the vehicle. Ensure the wheels are correctly aligned and the car tyre pressures are correct, as these can affect the vehicle's steering.
10. Registration Plate and Vehicle Identification Number
The registration plate needs to be in the correct format, legible and in good condition. Every car used after the 1st August 1980 must have its vehicle identification number clearly displayed.
Lights, brakes, suspension and car tyres are the four most common reasons why a car will fail its MOT. This checklist is intended as a guide to improve your cars chance of passing. If in any doubt we recommend consulting your local garage before taking the MOT test.

Free Tips on How to Replace Brake Pads

Brake pads naturally wear out over time. Luckily, it is not as difficult to replace them as you may think. The tools that you need for this project include a lug wrench, c-clamp, adjustable or open wrench, Allen wrenches, hammer, and a bungee cord. When you jack up your car, make sure that you have it supported by blocks or jack stands. It is never safe to work on a car that is supported by a jack only. The first thing you need to do is remove the wheel. The lugs should be easy to take out, it is best to do so from the bottom up.

Next, in order to remove the brake pads you must first remove the brake caliper. The brake caliper can be located just above the lug bolts, sitting on top of the brake disc. There is a bolt that keeps the caliper in place. You can remove it easily using the suitable wrench. There are different types of bolts that could be keeping it in place, so it is a good idea to have different wrenches handy. Now you can pull the caliper off by pulling directly up. You may need to wiggle it a bit in order to loosen it. Now you can sit the caliper some place convenient, or use your bungee cord to tie it up.
Now comes the time to remove the brake pads. They should actually slide right out without giving you any trouble. Remember how they are attached though, because you will need to know this when you are installing the fresh ones. If you are driving an older vehicle, you may need to tap them with your hammer a bit to get them unstuck. There may be some small metal tabs keeping the pads in place as well. If so, make sure you hang onto them; you will need them when you put the new pads in.
Now you can easily slide your new brake pads in, using the metal tabs to keep them in place if applicable. Now with your new pads affixed, you should adjust the brake piston. This piece of equipment adjusts as your pads wear out in order to keep your brakes working efficiently. To readjust it, you need your c-clamp. Put the end of the clamp with the screw against the piston. The other end should rest behind the caliper assembly. Now just slowly tighten the clamp until the piston has moved to a point where you can insert the pads easily.
The next thing you need to do is slide the caliper assembly over your new pads. Replace the bolts. At this point, it is a good idea to push down the brake petal a few times so that you may be assured of your brake pressure. Now you can replace the wheel and the lug nuts. It is a good idea to make sure that the lug nuts are truly secure. At this point you have successfully changed the brake pads on your car.