Pint Size Project Ч Rear Brakes Ч Reassembly
Dec 27, †Ј In this video, we will show you how to rebuild a GM /2 Inch Drum Brake. All of these parts and components can be purchased at gooddatingstory.com and can b. Reassemble your drum brakes. Saturate the dirt on the brake backing plate with brake parts cleaner; then wipe it off with a clean, grease-free rag. DonТt blow the dust around Ч it can cause serious lung damage. Wipe the dirt off the spindle and replace the wheel hub and brake drum on the spindle. If you have a floating drum, skip Steps 4.
N otice : wash the brake fluid off immediately if it comes into contact with any painted surface. Hint : assebmle the brake drum cannot be removed easily, do the following steps. Inspect brake drum inside diameter. Standard inside diameter: Maximum inside diameter: Remove rear brake automatic adjust lever lh. Eear Ч disconnect the upper side return spring from the front brake shoe, and remove the front brake shoe.
Remove parking brake shoe strut set lh. Sst Ч Standard thickness: 4. Minimum thickness: 1. If the lining thickness is at the minimum thickness or less, or if there is severe, uneven wear, replace the brake shoe. If the contact between the drum and the shoe lining is improper, repair it using a brake shoe grinder or replace the brake drrum assembly. Sst Ч remove the bolt and wheel cylinder. Remove rear wheel cylinder cup kit. Now Ч torque: Application high temperature grease.
Notice : there should be no oil or grease adhering to the friction surfaces of the shoe lining and drum. This selfЧcheck insures that the ecm is functioning properly.
If a malfunction is detected, the ecm will set the appropriate dtc and illuminate the mil. The two cpus, main and sub cpu ins Oil filter subЧassy Replacement Caution: prolonged and rsar contact with mineral oil will result in the removal of natural fats from the skin, leading to dryness, irritation and dermatitis. In addition, used engine oil contains potentially harmful contaminants which may cause skin cancer.
Inspection procedure 1 How to fix itchy scalp p squib circuit airbag sensor assy center Ч instrument panel passenger drmu assy Disconnect the negative Ч terminal cable from the battery, and wait at least for 90 seconds. Proportioning valve assy
Sep 03, †Ј Put it all back together. Slide the new or resurfaced drum over the wheel studs. Install lock screws in drum if equipped. Adjust the brakes through the drum or through the backing plate till a slight drag on the brake drum is felt%(55). Jun 14, †Ј Step 3: Clean the drum brake assembly. Once the drum is removed, you should be able to see the inner workings of the drum brake assembly: the shoes, springs, and wheel cylinder. Before proceeding with disassembly, place the oil drain pan underneath the drum brake assembly, and then thoroughly spray the entire assembly with brake cleaner. Drum brakes have fallen out of favor, but are often still found on the rear of small inexpensive cars, and ironically, on large trucks. The closed design of drum brakes makes them prone to heat induced brake fade, but for large trucks, they are easier to scale up for greater braking force than disc brakes; engineers can increase both the diameter of the drum and the width of the friction area.
Drum brakes have fallen out of favor, but are often still found on the rear of small inexpensive cars, and ironically, on large trucks.
The closed design of drum brakes makes them prone to heat induced brake fade, but for large trucks, they are easier to scale up for greater braking force than disc brakes; engineers can increase both the diameter of the drum and the width of the friction area. In drum brakes, the brake shoe is the curved metal backing plate covered with friction material that rubs the drum to provide braking.
A small hydraulic cylinder presses the two shoes apart, and into the drum, and a screw adjuster at the bottom gradually extends to make up for worn shoes. A cable operated lever provides parking and emergency brake functions by mechanically forcing the shoes apart the same way the hydraulics do. With time the friction material of the shoe wears thin, so periodically they need to be replaced. With time the friction material of the shoes wears away, and periodically they need to be replaced.
The brake shoe is meant to be the wear item in the braking system. It is softer than the iron drum so that the inner surface of the drum won't wear away. If left too long, the shoes will wear unevenly until the metal backing or the rivets holding the friction material start to contact the drum causing a horrible noise and wear to the drum. The brake shoes can also become contaminated with grease or oil, from a wheel bearing failure for instance. Accidentally driving with the parking brake on can also glaze or overheat the surface of the shoe, necessitating a change, as can hauling a heavy load or towing.
Replace them when necessary. Inspect the brake shoes at least once a year, but they can be expected to last more than 50, miles in normal use, less if towing and hauling. Always check the rest of the brake system when replacing the shoes - if the drums are in a poor condition consider replacing or resurfacing them.
If the drum shows any sign of cracking or warpage, it needs to be replaced. All cars are slightly different, so if it is time to change your brake shoes, use our before you begin checklist, and find your car for specific instructions. This clip is just a sample of the vehicle specific videos included in our online manuals.
Every vehicle is different, but here is a general overview of how you change rear brake shoes:. Only basic tools are needed for this job, though we assume you have a floor jack not your car's spare tire jack and jack stands. Go to front page. Search results Search Haynes. What is a Brake Shoe? If left too long, the shoes will wear until the metal backing or the rivets holding the friction material contact the drum causing a horrible noise and damage to the drum.
When to Change Brake Shoes. Find Your Car. Every car is different, so find yours and get the full instructions How to Change the Rear Brake Shoes. Every vehicle is different, but here is a general overview of how you change rear brake shoes: Work on only one wheel at a time, so the other side can provide a guide to reassembly. Break loose the lug nuts on the rear wheels.
Block the front wheels, then raise the rear of the car and support on jack stands. Remove the rear wheels and the brake drum. If the drum won't slide off easily, manually back off the brake adjuster. Remove the rubber plug on the rear of the dust cover and use a screw driver to crank back the adjuster wheel. Clean the brakes with aerosol brake cleaner. Disconnect the parking brake cable. Press and turn the shoe hold down springs and remove.
Unhook the lower spring between the brake shoes, and in many cases you can remove the shoes, adjuster and other mechanisms as a unit. If not, remove the upper spring and adjuster and remove the shoes. Swap any springs and hardware being reused onto new shoes. Apply a small amount of high temperature grease to any metal on metal rub surfaces, and the adjuster. Installation is the reverse of removal.
Before you begin. Tools you will need Only basic tools are needed for this job, though we assume you have a floor jack not your car's spare tire jack and jack stands.
Parts you may need. Year Year Make Make. Model Model.
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