Why Do Rear Drum Brakes Lock Up After Sitting?

AvatarByCarl Frisch

Rear drum brakes locked up after sitting is a common problem experienced by many car owners. The problem occurs when the brakes become stuck due to the lack of use and lack of lubrication. This can be caused by a variety of factors including rust build-up, corrosion, dirt and debris build-up, or even a worn brake shoe. In order to fix this issue, the brakes need to be serviced and may require replacing some parts such as the brake drums or shoes. Additionally, it may be necessary to flush out the brake system and lubricate all moving parts. Finally, it is essential to test drive the vehicle in order to ensure that the brakes are functioning correctly.

Rear Drum Brakes Locked Up After Sitting: What Causes it and How to Fix

When a vehicle is not driven for an extended period of time, the rear drum brakes may lock up. This can be a concerning issue, as it can affect the safety of the driver and other occupants. In order to prevent this from occurring, it is important to understand what causes drum brakes to lock up after sitting, how to fix them, the signs of a problem, and necessary safety precautions.

What Causes Rear Drum Brakes to Lock Up After Sitting?

There are a few factors that can lead to rear drum brakes locking up after sitting. Rusting or corrosion can occur if the vehicle has been exposed to moisture while idle. If rust accumulates on the brake components or drums then this can cause them to seize and lock up when driving. Additionally, brake fluid can degrade over time due to age or contamination and this can also lead to a locking up of the brakes. Lastly, components such as brake shoe linings and wheel cylinders may wear out over time leading them to fail when in use.

How To Fix Rear Drum Brakes That Have Locked Up

To fix rear drum brakes that have locked up after sitting there are several steps that must be taken. First assess any visible damage or wear on parts such as wheel cylinders or brake shoes. If necessary replace these parts with new ones as needed. Then check for rusting or corrosion on any components affected by moisture before cleaning away any accumulated rust with a wire brush or sandpaper. Finally bleed the brake system of air bubbles before refilling with new brake fluid and testing for proper operation. Necessary tools and parts include wheel cylinder pliers, rubber cups for bleeding brakes, replacement wheel cylinders if needed, replacement brake shoes if needed, wire brush or sandpaper for cleaning rust away, and fresh brake fluid for refilling system once complete.

Signs of Rear Drum Brakes Locking Up After Sitting

There are several warning signs that may indicate rear drum brakes locking up after sitting including visual signs such as corroded metal surfaces on drums or components affected by moisture; leaking wheel cylinders; worn out shoe linings; and accumulation of rust on drums or other components due to moisture exposure while idle. Additionally other indicators of damage may include difficulty in disengaging parking brakes; difficulty in releasing foot pedals during braking; vibration during braking; squealing noises coming from wheels during braking; unevenness in braking power between front/rear axle; pulsating feeling during braking; dragging feeling noticeable when driving at low speeds; increased stopping distance during emergency stops; and fast wearing out of tires due to excessive heat generated from friction between tires/road surface caused by faulty braking system performance.

Safety Precautions When Working On Rear Drum Brakes

It is important take certain safety precautions when working on rear drum brakes including wearing protective equipment such as goggles/gloves/protective clothing when handling corrosive chemicals used in cleaning rusted surfaces off parts along with other hazards associated with automotive repair work such as power tools/jacks/lifts etc.. Additionally always ensure vehicle is securely lifted off ground using suitable jack stands before further disassembly work is undertaken along with ensuring all necessary tools are present before starting repair work instead of having to search around mid-repair thus avoiding potential accidents from happening due to lack of concentration caused by distractions during repair work . Lastly never attempt any repairs without consulting service manual beforehand along with always testing repairs after completion before taking vehicle out for a test drive in order make sure all components are operating properly thus avoiding potential breakdowns while driving resulting in hazardous situations both for driver/passengers but also other drivers on road who could be put at risk due unexpected erratic maneuvers caused by faulty braking systems etc..

Common Issues With Rear Drum Brakes After Sitting

Common issues encountered with rear drum brakes after they have been sitting include rusted surfaces due exposure from moisture which can cause wheels from completely seizing up requiring complete overhauls including replacing worn out parts like wheel cylinders/shoe linings etc.. Additionally component failure due age related wear & tear which could result in sudden loss of braking power requiring immediate overhauls including replacing faulty parts like master cylinder valves & vacuum booster units etc.. Lastly problems related electrical systems associated with anti-lock braking systems (ABS) which could result in sudden loss of control over vehicles’ response times especially during emergency situations requiring complete inspection & replacement part installations if necessary .

Benefits of Replacing or Repairing Rear Drum Brakes After Sitting

Replacing or repairing rear drum brakes after sitting can provide a number of benefits to a vehicle owner. This type of brake system can improve a vehicle’s performance and efficiency, as well as increase its safety and reliability. In addition, replacing or repairing rear drum brakes can extend the lifespan of the system and provide better control over braking.

Common Maintenance Practices for Rear Drum Brakes After Sitting

Regular inspections and adjustments are important parts of maintaining rear drum brakes after sitting. Inspections should be carried out regularly to ensure all components are in good condition and working properly. Adjustments should also be made when necessary to ensure the brakes are operating correctly. Furthermore, there are certain tips that can be followed to help prolong the lifespan of the system, such as regularly checking for wear and tear on the brake linings, lubricating any moving parts, and making sure all components are correctly tightened.

Best Practices for Storing a Vehicle With Rear Drum Brakes After Sitting

When storing a vehicle with rear drum brakes after sitting, it is important to choose the right location. The ideal spot should be dry, ventilated and away from direct sunlight or other sources of heat. It is also important to protect the vehicle from moisture by covering it with a plastic sheet or tarpaulin if necessary. Additionally, it is wise to take steps to avoid corrosion by applying protective coatings on exposed metal surfaces and cleaning off any debris that may have accumulated on them during storage.

Troubleshooting Guide for Rear Drum Brake Problems After Sitting

If there are any issues with rear drum brakes after sitting, it is important to identify potential problems so that they can be addressed in a timely manner. Common issues include worn-out brake linings, seized-up wheel cylinders or drums, as well as misaligned or malfunctioning components such as springs and levers. To troubleshoot these types of problems, it is recommended that expert advice is sought in order to determine the best course of action for resolving them efficiently and effectively.

Professional Services Offered for Rear Drum Brake Repairs After Sitting

For those who require assistance with rear drum brake repairs after sitting, professional services can provide an invaluable source of support. Cost estimates and quotes can be requested so that an informed decision can be made regarding which option is best suited for individual circumstances. Additionally, it is always advisable to use certified professionals who have experience with this type of work in order to ensure quality results that meet safety standards.

FAQ & Answers

Q: What Causes Rear Drum Brakes to Lock Up After Sitting?
A: The most common reason for rear drum brakes locking up after sitting is rust and corrosion on the brake components. This usually happens when moisture and dirt build up on the drums and other parts, leading to them sticking together. Other factors that can cause rear drum brakes to lock up after sitting include worn-out components or a lack of lubrication.

Q: How to Fix Rear Drum Brakes That Have Locked Up?
A: To fix rear drum brakes that have locked up, you will need to remove the drums and inspect them for any signs of rust or corrosion. If present, these should be removed with a wire brush or sandpaper. You may also need to replace any worn-out components, such as brake shoes and wheel cylinders, before reassembling the brake system. Additionally, lubricating the various parts can help reduce friction and ensure that they move freely.

Q: What Are the Signs of Rear Drum Brakes Locking Up After Sitting?
A: A common sign of rear drum brakes locking up after sitting is a noticeable decrease in braking power. You may also hear a grinding sound when applying the brakes or notice that they are not as responsive as usual. If left unchecked, this issue can lead to more serious problems such as warped rotors or damaged brake pads.

Q: What Safety Precautions Should Be Taken When Working on Rear Drum Brakes?
A: When working on rear drum brakes, it’s important to take safety precautions such as wearing protective gear like gloves and goggles. Make sure that all tools are in good condition and securely fastened to avoid any accidents or injuries while working on your vehicle’s brakes. Additionally, it’s important to read all instructions carefully before beginning any repairs or maintenance work on your vehicle’s brake system.

Q: What Are Some Common Issues With Rear Drum Brakes After Sitting?
A: Common issues with rear drum brakes after sitting include rusting or corrosion due to moisture buildup, as well as component failure or damage due to wear and tear over time. Additionally, if not properly maintained, dirt and debris can accumulate in the drums which can lead to reduced braking performance and efficiency.

In conclusion, rear drum brakes can become locked up after sitting for long periods of time. This is caused by rust and corrosion in the brake system, which can be prevented with proper maintenance. However, if your brakes do become locked up, it is important to get them checked out as soon as possible to avoid potential damage or injury. With regular maintenance and inspections, rear drum brakes should not present a problem while driving.

Author Profile

Carl Frisch
Carl Frisch
With more than 30 years in the bicycle industry, I have a strong background in bicycle retailing, sales, marketing and customer service. I have a passion for cycling and a dedication to excellence. As a manager, I worked diligently to increase my capabilities and responsibilities, managing up to eleven mechanics (at Palo Alto Bicycles) and later as a working partner in my own store.

As the shop owner of Spoke n’ Word Cycles in Socorro, NM, the success of the mission was my responsibility, which I pursued passionately since we opened in 2003 through the spring of 2011. I am adept at managing owned and loan inventory, preparing weekly & annual inventory statements, and managing staff. The role as managing partner also allowed me tremendous freedom. I used this personal freedom to become more deeply involved in my own advancement as a mechanic, to spearhead local trail building, and advocating for cycling both locally and regionally.

As a mechanic, I have several years doing neutral support, experience as a team mechanic, and experience supporting local rides, races, club events. I consistently strive to ensure that bicycles function flawlessly by foreseeing issues and working with the riders, soigners, coaches and other mechanics. Even with decades of experience as a shop mechanic and team mechanic, and continue to pursue greater involvement in this sport as a US Pro Mechanic, and UCI Pro Mechanic.

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