Brakes – What can go wrong? Part – 2

drum-brakes.jpgNow, to the maintenance part for as you have seen there are actually many parts that form the whole brake system which is imperative that you keep in tip top shape as possible for safety’s sake. Any fluid leak should be inspected or at least have it looked at by a mechanic to ensure they are not a danger. Worn out hoses and brake lines can suddenly burst (the pressures are immense if you were only able to see the small brake pads in how they stop your vehicle) leading to sudden loss of pressure preventing them from functioning. There is however a safety feature on brake systems which is now standard which is a dual line system which divides the wheels into two brake circuits. The driver’s side wheel is linked to the one at the rear of the passenger’s side and the other way around. This allows braking even if one of the brake systems fails and as last resort, there is still the mechanical parking brake (check out the post on how to stop without power assisted brakes for if not done properly you could lock the wheels and totally loose control).

The brake disks and drums also have to be inspected for they eventually develop deep grooves that have to be re-milled in a process called re-facing wherein the rotor/disk and drums are machined to make the surfaces flat removing the deep grooves that occur naturally. The break pads are replaced even if they are new so as to avoid making new grooves on the newly re-faced parts. Wheel cylinders get stuck or springs leak (which usually happens if they get submerged in water, say in a flood) causing them to bind which leads to smoking wheels for the brakes don’t release and the wheels have a hard time turning. Some problems can be repaired and some may have to be replaced but with proper maintenance and care you should be able to have brake trouble free use of your vehicle providing for your transportation needs for times to come.

Written by Marcel on July 27, 2011 | Leave a Comment

Brakes – What can go wrong? – Part 1

disk-brakes.jpgThe brake system of your car is one of the most vital safety features that without which driving would be impossible. There are many things that can go wrong with your brakes and as preventive maintenance and regular inspection, it would be best to check on a few parts so you don’t get caught without brakes on the road.

Under the hood of any vehicle there is a container or reservoir as it is called that contains brake fluid and to most drivers, is the most known part of the brake system. Don’t keep this only topped off but make sure you use the right type of brake fluid (DOT 3 is the most common brake fluid grade used). The metal thing this reservoir sits on is called the Master cylinder which contains the pistons that forces the fluid from the reservoir into the brake lines (more on the other parts as we go on) to the wheel cylinders. Directly behind that is a metal drum like thing that is the brake booster which has a rubber gasket inside which multiplies the amount of force exerted by your foot on the pedal into immense pressures to stop your car. The brake fluid then goes through the brake lines to each wheel which are actually metal pipes with some rubber hoses in tight corners and moving areas to the wheel cylinders. The wheels all have individual cylinders or pistons that push the brake pads or drums to close and stop the vehicle. The parts the pads come in contact with are the rotors for disk brakes and drums for drum brakes.

More on the next post regarding maintenance and troubleshooting of the brake system.

Written by Marcel on July 20, 2011 | Leave a Comment