Where are drum brake systems found?

rear wheels
Drum brake systems Drum brakes are usually only found on rear wheels of vehicles. The main wear item is the brake shoes, but the brake drums may need to be machined to ensure a flat surface for the shoes to apply friction.

What are the parts of drum brakes?

Drum brake components include the backing plate, brake drum, shoe, wheel cylinder, and various springs and pins.

How do I take apart my rear drum brakes?

Unscrew the brake drum if needed.

Use a screwdriver to remove the screws securing the brake drum to the wheel.
Draw the brake drum forcefully towards you.
Use a screwdriver and rubber mallet or a brake drum puller to take the drum off of the wheel if you are unable to remove the drum by unscrewing it and pulling it.

What are the 2 types of drum brakes?

There are three types of drum brakes depending on how the brake shoes are pressed on to the drums; leading/trailing shoe type, twin leading shoe type and duo-servo type.

What is the biggest disadvantage of the drum brake system?

Drum brake disadvantages

Excessive heating can happen due to heavy braking, which then can cause the drum to distort, and thus cause vibration under braking.
Under hard braking, the diameter of the drum increases slightly due to thermal expansion, the driver must press the brake pedal farther.

How often do drum brakes need to be replaced?

about 200,000 miles
The brake drums on your car are built to last for about 200,000 miles. In some cases, the drums will wear out sooner due to worn out internal components that put more strain on the drum. As your brake drums begin to wear down, they will actually become smaller.

What is a big disadvantage of the drum brake?

Drum brake disadvantages Excessive heating can happen due to heavy braking, which then can cause the drum to distort, and thus cause vibration under braking. Under hard braking, the diameter of the drum increases slightly due to thermal expansion, the driver must press the brake pedal farther.

Why are drum brakes still used?

Drum brakes lock-up the wheels easier and make better parking brakes than disc brakes. Those who enjoy doing handbrake turns may also favour rear drum brakes since they lock-up easier (self-energizing). Drum brakes are also smaller and lighter but these are not reasons why modern cars still use them.

Do drum brakes have more stopping power?

Drum brakes can provide more braking force than an equal diameter disc brake. Drum brakes last longer because drum brakes have increased friction contact area than a disc. Drum brakes are cheaper to manufacture than disc brakes. Drums have slightly lower frequency of maintenance due to better corrosion resistance.

What causes rear drum brakes to engage too soon?

If the parking brake system is not de-adjusted properly before the brake shoes are adjusted it will cause the rear brakes to engage too soon. This is especially true of vehicles equipped with duo-servo rear drum brakes (see Figure 61.1).

How big is a 9 inch drum brake kit?

Ford 9 Inch Drum brake kit Ford 9 Inch Drum brake kit-Ford 9 Inch Bolt On Drum Brake Kit New 11 Drums Drilled for your choice of bolt pattern New Internal Hardware Your choice My Account

Why are my brake shoes square with the drum?

The shoe lands or “bosses” are an often overlooked item when looking for the cause of a rear wheel lockup condition. The shoe lands keep the brake shoes square with the drum and provide a friction surface for the shoes to move against.

How to replace rear brake shoes and wheel cylinder?

How to replace the rear brake shoes and a leaky wheel cylinder on a 1999-2005 Ford Focus. You must torque the drum bearing to 170 foot pounds of torque which is not shown in this video. — Please use needle noise vise grips instead of side cutters on the brake springs. —

How to adjust the rear brakes on a puma Ka?

The self adjusters for rear drums have never worked properly since they were designed for Fiesta’s, Escorts, Puma’s Ka’s etc. The easiest way to adjust the rear brakes is to remove the rear wheels and drums and adjust them by hand, also blow out all the dust and inspect rear brake cylinders at the same time for leaks.

What kind of brake drums are used in Ford Focus Mk2?

There are 2 types of brake drums used for the Focus MK2 and MK2.5. There is one type with threaded holes and the other type does not have threaded holes. I had to remove the brake drums when I did the disc brake conversion.

How do you remove the rear drum on a Ford Focus?

The drum should then pull off. If the drum is reluctant to move, use two 8mm bolts in the threaded holes and draw the drum off. Also prop the car and ensure the hand brake is off to release the brake pad tension from the drum. My Haynes says the same.