Understanding Mitsubishi Lancer Rear Drum Brakes A Comprehensive Guide

The Mitsubishi Lancer, known for its reliability, performance, and distinctive design, has gained a dedicated following among car enthusiasts and everyday drivers alike. One of the critical components of the Lancer's braking system is the rear drum brakes. Although many modern vehicles have adopted disc brakes for all four wheels, the rear drum brake system still holds its ground, particularly in various Mitsubishi Lancer models. This article delves into the function, maintenance, advantages, and potential issues related to rear drum brakes in the Mitsubishi Lancer.

Function of Rear Drum Brakes

The primary function of rear drum brakes is to ensure safe and effective deceleration of the vehicle. When the brake pedal is pressed, hydraulic fluid is transmitted from the master cylinder to the wheel cylinders located inside each brake drum. This hydraulic action pushes the brake shoes outward against the inner surface of the drum, creating the friction needed to slow down or stop the vehicle. Unlike disc brakes, which use calipers and rotors, drum brakes encapsulate all their working parts within a drum enclosing the brake shoes.

Advantages of Rear Drum Brakes

1. Cost-Effective One of the most significant advantages of rear drum brakes is their cost. Drum brake systems are typically less expensive to manufacture and install than disc brake systems, making them a budget-friendly option for car manufacturers and consumers.

2. Durability Rear drum brakes are known for their durability and longevity. Because the shoes are enclosed in a drum, they are protected from environmental factors such as dirt and moisture, which can lead to faster wear in disc brake systems.

3. Effective Emergency Braking Many vehicles, including the Mitsubishi Lancer, benefit from drum brakes in the rear when it comes to emergency braking. They can provide a strong braking force, which is crucial in emergency situations.

4. Regenerative Braking In some hybrid and electric vehicle applications, drum brakes can work effectively with regenerative braking systems, helping to recharge the battery while providing sufficient stopping power.

Maintenance of Rear Drum Brakes

Routine maintenance of rear drum brakes is vital for the safety and reliability of the vehicle. Here are some essential maintenance tips

1. Inspection Regularly inspect the brake drums and shoes for wear. Look for signs of grooves or scores on the drum surface and check the thickness of the brake shoes.

2. Cleaning Over time, dust and debris can accumulate inside the drum. Take care to clean the brake components during inspections to avoid any build-up that might affect braking performance.

3. Adjustment Drum brakes often require periodic adjustments to ensure optimal contact between the shoes and the drum. This adjustment can usually be made using an access hole in the drum.

4. Replacement If the brake shoes are worn to their minimum thickness or if the drums show significant wear or damage, replacement is crucial. It's advisable to always replace brake shoes in pairs for balanced braking.

Common Issues with Rear Drum Brakes

While rear drum brakes are generally reliable, there are a few common issues that Lancer owners may encounter

1. Brake Fade This occurs when the brake pads or shoes overheat due to prolonged use or insufficient cooling. It leads to a reduction in braking power and can be dangerous.

2. Noise Squeaking or grinding noises can indicate that the brake shoes are worn, or there might be a problem with the brake drum itself.

3. Pulling to One Side If the vehicle pulls to one side when braking, it could indicate uneven wear on the brake shoes or a malfunction within the brake system.

4. Vibration If the rear brakes pulse or vibrate when applied, this may suggest that the drum is warped and may need resurfacing or replacement.

Conclusion

In conclusion, the rear drum brakes on a Mitsubishi Lancer are an important component of its overall braking system. Understanding their function, maintenance requirements, advantages, and potential issues can help ensure the safety and reliability of your vehicle. Like any component of a vehicle, regular maintenance and timely repairs will prolong the life of the brake system and enhance your driving experience. Whether you’re a DIY enthusiast or prefer professional service, being informed will empower you to make better decisions for your Mitsubishi Lancer.