Car And Truck Brake Parts

Brake Brakes

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Brake Brakes
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The security of your car is vital, whether it is a Mercedes or a Mazda - even the safest vehicle on earth can have brake failure. If your car's brakes don't work properly, the consequences could be fatal. Thus, the brakes are probably the most important part of your vehicle. Car brake repair knowledge is always good to have because you never know if or when your car's brake system will let you down. If this happens while you're driving let's say in the desert, miles away from the nearest garage, you should be able to

• Perform a brake inspection and troubleshoot the problem
• Know what it takes to do a car brakes repair
• If possible, do the fix yourself
• If not, be able to describe the problem to someone who is able to repair your automobile brakes.

To become able to perform the work listed above, the first thing you need to know is how a car's brake system works.

A drum system is utilizing hydraulic pressure to press a pad against a brake drum to slow down the speed of the vehicle. Here is how it works:

• press the brake pedal
• the piston in the master cylinder sends pressure via the brake lines held by the brake shoe to the wheel cylinders inside the brake drum
• the friction caused by the shoe pressed against the drum is stopping the wheel from turning

A brake drum is a flat-topped and heavy cylinder, that you normally find somewhere between the wheel rim and the drive wheel. When you press the brake pedal, the friction material held by the brake shoes is pressed against the brake drum. This will slow the rotation of the wheels. A wheel cylinder contains pistons utilizing hydraulic power from the master cylinder to force the brake pads against the brake drum.

Another brake system, called disk brake system is using hydraulic pressure to press a pad against the rotor. This way it slows down the vehicle. Here is how it works:

• press the brake pedal
• the piston in the master cylinder is activated and sends pressure via the brake lines to the calliper
• when the pad makes contact with the rotor, friction is created and this stops the wheel from turning

A rotor is nothing but a circular plate that is gripped by the brake pads for slowing down the vehicle. A brake pad is a pad made of friction material. When pressed against the rotor it stops the wheel from turning. This pad is held by the calliper, which straddles the rotor by using hydraulic pressure from the brake lines. With help from internal pistons it forces the brake pads against the rotors.

Performing this process, the breaking system needs brake fluid. The master cylinder provides this by distributing the brake fluid under pressure, to the entire breaking system of your vehicle.

The description above gives you the knowledge of how two different car brake systems work. These are the first things you need to know when troubleshooting and fixing any problems regarding your vehicle's brakes. Brake problems can occur in a Cadillac, a VW or even in the safest vehicle brand. There are plenty free resources online which give you step by step instructions on fixing any brake problems that your vehicle may incur. I recommend that you go online and do a search for 'car auto brake repair'. You'll be amazed of the list of brake fix resources that will appear within seconds.

Terje Brooks Ellingsen is a writer and internet publisher. He runs the website cheap-used-cars.w-eland.com Terje gives advice and helps people with automotive issues like car brake repair and other auto repair issues [http://www.cheap-used-cars.w-eland.com/auto_repair_help.htm] as well as buying cheap used cars online [http://www.cheap-used-cars.w-eland.com/buy_used_cars.htm].

The Technique for Braking Well on the Track

Before entering a corner on a track you'll almost certainly need to brake hard to achieve the correct entry speed. While doing this you'll probably want to retain steering control of your car, so locking up all four wheels may not be the best strategy!

Threshold braking is the technique you should strive for in this situation, which is the quickest method of reducing speed. This method of braking involves braking to the limits of grip without allowing the wheels to lock. However it is sometimes very difficult to judge the amount of brake force the tyres will accept before locking up. This technique must be practiced regularly in your racing car before you can accurately judge the brake pressured required in different conditions.

The key to this technique is progressive braking inputs. If you stamp as hard as you can on the pedal the resulting spike in forward weight transfer can cause wheel lock at the rear (if you don't have ABS fitted), whereas more progressive braking inputs will allow the front wheels to load up more gradually without compressing the front suspension to extreme limits. This doesn't mean you can't brake hard, but try to apply the braking in a progressive yet rapid manner. As you load up the front wheels with the forward weight transfer, you artificially increase the amount of grip available which will further aid your deceleration.

If you do have ABS, this progressive technique is still relevant as sudden weight transfers also upset the balance of the car which needs to be stable before entering a corner quickly.

Another factor to consider is the change in state between a rotating wheel and a locked wheel. Tyre rubber doesn't change between these two states as rapidly as you might think and there is a transition period of 'slip' before the wheel finally locks. The maximum braking force a tyre can provide is actually just as it begins to slip and this is the point to aim for with threshold braking. Sounds tricky and it is!

The next thing to consider is what to do if you do lock up one or more wheels under braking (this will happen fairly often until you become very familiar with your car and the track). When wheel lock occurs you have several options.

• Keep the brakes on – the wheel(s) will remain locked so this is only really an last resort option if your desired path is straight ahead. Beware that the directional stability of the car will be compromised in this state. If you need to turn you'll need to release the brakes to get back steering control.
• The second option is to release the brakes slightly and reapply with slightly less pressure. This should free up the locked wheel and allow you to steer. Now you can resume attempting to threshold brake.
• Cadence braking involves reapplying the brake, but repeatedly continuing to experience locked wheels. Keep releasing and reapplying the brakes as smoothly as you can to try and find the threshold point. This will give you a compromise between braking and steering, but is not the fastest method of braking. Cars with ABS automatically try and find the threshold point by rapidly releasing and reapplying the brakes.

To sum up, aim for threshold braking, but until you're a very experienced driver make sure you have a contingency up your sleeve!

For more information on braking techniques, please click here

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DrivingFast.net

Can someone tell me the difference btw brakes and brake pads on cars?

My new car brakes keep squeaking. Chevy claims to have replaced all the "pads" but is there more to be done. Of course they are doing this under warranty so I'm not sure if they are trying to get off cheap. Any advice from car experts? Thanks!

yeah, did they turn the rotors? you can put all the new pads in the world on, but if the rotors were blue at all , then they will give some noise at one point or another. a rotor can actually be too shiny, Maybe they put cheap pads on it. Do find out if the rotors were bluish looking as thats where I would start.
As far as adding a brake squeal product to the back of the pads before installation. Its a decent product, but in 35 years All my shops, I think I have only used it a few times. Generally if a pad needs something like that it come in the box of pads when you buy them, such as a thin type of shim that quiets the noise transmitted from the pad to the calipher. that is known as "friction" pads. Used to this day on many vehicles.
In my shops, I will throw pads on if thats all you wish. I will not warranty them against any sound if I do not turn the rotors because fron rotors generally end up with with bluing from heat. Also, if you car (especially) has rear drum brakes, Never just do the front brake job, do it, but ask them to adjust the rear brakes. I have found 50% of cars tat come in have excessive bluing on front rotors mainly due to the fact that the rear brakes are poorly adjusted and so most of your breaking power is in the front. Car dives excessivly in the front when applying the brake? then adjust the rears.

Rear brake adjustment can even cause squeal on front pads because of improper adjusting.

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