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High Heat Issue in Brake Drums; Causes and Solutions

High Heat Issue in Brake Drums; Causes and Solutions

In vehicle safety, braking performance is one of the most critical factors during driving. On long journeys, at high speeds, or in heavy city traffic, the constant use of brakes inevitably generates heat. This heat, when concentrated on components within the brake systems, particularly the brake drum, can lead to both performance loss and serious automotive safety risks. High heat problems can cause not only mechanical failures but also reduce the driver’s control over the vehicle. For this reason, it is vital to understand the heating process of the brake disc, drum brake shoes, and other related components, the causes of this heat, and the preventive solutions.

Main Causes of High Heat

  • Excessive Braking and Improper Driving Habits: Frequent hard braking causes sudden heat spikes on the brake drum. Especially on long downhill stretches, relying solely on the brake pedal instead of using engine braking leads to heat accumulation. This can cause microscopic cracks on the drum surface and hardening of the drum brake shoes, reducing their grip capacity.

  • Overloading the Vehicle: Carrying loads beyond the vehicle’s capacity significantly increases the strain on the brake systems. As a result, both the brake disc and the

    brake drum reach higher temperatures. Consequently, braking distance increases, and heat dissipation becomes more difficult.

  • Insufficient Ventilation Certain wheel designs restrict airflow around the brake systems. Without adequate heat dissipation, components are forced to operate at consistently high temperatures. The accumulation of mud, stones, and dust also reduces ventilation, negatively affecting braking performance.

  • Material Fatigue and Low-Quality Parts: Over time, the surfaces of the

    brake disc and drum brake shoes wear down. The metal’s heat resistance decreases, making it more susceptible to high temperatures. Poor-quality

    brake pads or incompatible spare parts accelerate this process.

Possible Consequences of High Heat

  • Significant reduction in brake system efficiency
  • Cracks, discoloration, or deformation on the brake drum
  • Hardening and reduced grip of drum brake shoes
  • Burn marks and metal surface damage on the brake disc
  • Extended braking distance
  • Serious accident risk in terms of automotive safety

Effective Solutions to Prevent the Problem

1. Proper Braking Techniques

  • Use engine braking on long downhill stretches
  • Opt for gradual braking instead of sudden stops
  • Avoid frequent stop-and-go situations

These techniques help reduce the load on the brake systems and keep brake drum temperatures under control.

2. Regular Maintenance and Inspection

  • Do not delay brake shoe replacement intervals
  • Check brake fluid levels during brake maintenance
  • Measure the thickness of the brake disc and drum brake shoes

Regular maintenance keeps braking performance at its peak.

3. Use of Quality Parts

Choosing original and high-quality brake pads, brake discs, and drum brake shoes makes a big difference in heat resistance. Options like ceramic brake pads, which withstand higher temperatures, should be considered.

4. Improved Ventilation

Open wheel designs, cooling ducts, and regular cleaning improve airflow around the brake drum, enabling faster heat dissipation.

Advanced Technical Measures

  • Installing a temperature sensor for real-time heat monitoring
  • Using cooling ducts for high-performance heat reduction
  • Opting for ceramic brake pads and special alloy brake discs to enhance braking performance

Heat Management Through Professional Driving Techniques

Professional drivers minimize unnecessary strain on the brake systems by controlling speed with engine braking. On long race tracks or mountain roads, short, intermittent braking intervals are used to balance heat on the brake drum. These techniques are also beneficial for automotive safety in daily driving.

Modern Technologies to Increase Heat Resistance

Today, many manufacturers are developing special alloys for brake systems that disperse heat more effectively. Ventilation channels in the brake disc, thermal coatings for drum brake shoes, and improved brake fluid formulas provide extra protection against high temperatures.

Promoting Driver Awareness

Most heat-related issues arise from improper use and neglected maintenance. Drivers should seek immediate inspection when they notice changes in braking distance, brake pedal response, or braking performance. Early intervention extends the life of the brake drum and other components. All of these high-quality parts and solutions can be easily found at EKU, a trusted source for reliable automotive products.