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Why do brake drums on a vehicle run hot?
Drum brakes heat up faster, and stay hotter than disc brakes because of their design. Drum brakes have a drum covering two shoes which apply friction to nearly 90% of the drum surface. This friction causes drag which slows the drum from spinning, then stopping the car. Unfortunately, this use of friction, causes heat and the design of the drum restricts ventiliation. Disc brakes also use friction, but a piston applies much greater force on brake pads than shoes apply on a drum. The pads press on a spinning rotor, causing the drag and slowing the car. The design of the piston having greater force than the shoes, require less surface area to be used in applying the braking force. Less surface area = less friction points = less heat. But saying all this if your drum brakes are running hot then possible you are riding the brake with your foot while driving, the wheel cylinder is sticking causing the brakes shoes to drag and not fully retract, or the brake shoes are adjusted incorrectly and are dragging on the drum. Check the adjustment first thing to see that they are adjusted correctly. Also, the disc brakes have a much more open design allowing air to cool the brakes. Many brake systems have cross-drilled and/or slotted rotors which also allow heat to disapate much faster.
What does it mean to machine the brake rotors and drum brakes?
The rotors in disc brakes and the drums are what the pads and shoes rub against to stop a car. With use, the surface can get grooves in it or a build up of rust scale; reducing the braking efficiency. To machine the rotors and drums, they are put on a lathe that cuts a new smooth surface on the face of each. Depending on wear, any given rotor or drum can probably be turned 2 or 3 times before needing to be replaced.
A car with front desk brakes and rear drum brakes has cylinders where?
( 1 ) on each of the rear drum brakes
What causes Popping from rear when brakes are applied while driving?
if they are drum brakes it could be that the drums friction surface has a defect on it and everytime the shoes hit it it pops or it could be a bad hold down or quieter spring in the drum itself
93 Pontiac drum brakes?
What about 1993 Pontiac drum brakes, please be specific.
How does the surface area of a drum affect its pitch?
By it's TEMPTURE
No brakes in rear on cavalier?
Drum brakes.
How do you change car brakes?
This will greatly depend on what kind of brakes you have and which parts you are trying to replace. Do you have disc or drum brakes? If you have disc brakes, do you want to replace the calipers, pads, or rotors? If you have drum brakes, do you want to replace the drum, or the shoes?
Why are disc brakes more powerful than drum brakes?
Simply a question of Force distributed over a much smaller area in the case of disk brakes (or higher pressure)
Does disk and drum brakes work exactly the same?
No. Drum brakes expand inside a rotating drum to stop the vehicle, disc brakes squeeze in against a rotating disc.
Are the rear brakes on a 1984 Chevrolet C-10 disk or drum?
The rear brakes on a 1984 Chevy truck are drum brakes.
How do you adjust the brakes on a 2002 Yamaha ttr 125 they are the drum brakes?
Only the rear brakes are drum brakes. The front brakes are disc brakes. To answer your question, twist the end wing nut by your drum brake. It tightens and adjusts how much you have to press on your rear brake lever.
