Fiesta Rear Drum Removal: A UK Guide

Maintaining your Ford Fiesta's braking system is paramount for safety, and that often involves inspecting or replacing the rear brake shoes and cylinders. While disc brakes are prevalent on the front, many Fiestas, especially on the rear axle, still rely on drum brake technology. Removing these drums can sometimes be a straightforward task, but for other models or particularly stubborn components, it can present a real challenge. This guide will walk you through the process, highlighting crucial differences between Fiesta models and, most importantly, ensuring you avoid common pitfalls that could lead to costly damage.

Safety First: Preparing Your Fiesta for Brake Work

Before you even think about touching a spanner, safety must be your absolute priority. Working on your car’s braking system without proper precautions is incredibly dangerous. Ensure you have the right equipment and follow these steps:

• Park on a Level Surface: Always ensure your car is on firm, level ground.
• Engage Handbrake: If working on the rear, engage the handbrake. If you're removing a rear drum, you'll need to release the handbrake later, but start with it engaged. Chock the front wheels securely to prevent any movement.
• Loosen Wheel Nuts: While the car is still on the ground, slightly loosen the wheel nuts on the wheel you intend to remove.
• Jack Up the Vehicle: Use a high-quality jack on the manufacturer-specified jacking points.
• Secure with Axle Stands: NEVER rely solely on a jack. Place sturdy axle stands beneath the vehicle's chassis, again at manufacturer-specified points, and gently lower the car onto them. Give the car a gentle shake to ensure it’s stable.
• Personal Protective Equipment (PPE): Wear safety glasses to protect your eyes from brake dust and debris, and gloves to keep your hands clean and safe.

Essential Tools for the Job

Having the right tools will make the job significantly easier and safer. Here’s what you’ll likely need:

• Wheel brace or impact gun
• Torque wrench
• Jack and axle stands
• Flathead screwdriver (various sizes)
• Phillips head screwdriver (if retaining screws are present)
• Wire brush
• Penetrating oil (e.g., WD-40 or PlusGas)
• Rubber mallet or soft-faced hammer
• Standard hammer
• Brake cleaner
• A hub puller (essential for many older models and seized drums)
• Brake spring pliers (optional, but helpful for reassembly)

Understanding Your Fiesta's Rear Drum Configuration

This is where things can differ significantly between Fiesta models. The user rightly pointed out that a Mk7.5 Fiesta (and potentially other newer iterations) can be much easier than older versions. Let's clarify the two main scenarios:

Scenario 1: The Modern Fiesta (e.g., Mk7.5 and some later models) with Retaining Screws

On some newer Fiesta models, such as the Mk7.5, Ford has made the drum removal process considerably simpler. You might find that the drum is primarily held in place by just two small Phillips head or Torx screws, in addition to the friction from the wheel nuts. Once these screws are removed, the drum should, in theory, slide straight off with minimal effort.

Step-by-Step for Retaining Screw Drums:

1. Remove the Wheel: With the car safely on axle stands, remove the wheel nuts and carefully take off the road wheel.
2. Locate Retaining Screws: Inspect the face of the brake drum. You should see two small screws (often Phillips head or Torx) that secure the drum to the hub.
3. Clean and Loosen Screws: Use a wire brush to clean any dirt or rust from the screw heads. Apply a small amount of penetrating oil if they look corroded and allow it to soak.
4. Remove Screws: Using the correct screwdriver, carefully remove these two screws. Be gentle to avoid stripping the heads. If they're particularly stubborn, a manual impact driver might be useful.
5. Remove the Drum: Once the screws are out, the drum should now be free. It might require a gentle tap with a rubber mallet around its edges to break any slight seal or rust bond. It should then slide straight off the hub.

Scenario 2: Older Fiestas or Seized Drums (No Obvious Retaining Screws)

For many older Fiesta models, the drum is simply held in place by the clamping force of the wheel nuts, and often, by rust and a lip worn into the drum itself. This is where the process becomes more challenging and where the risk of damage increases if not approached correctly.

Critical Warning: Avoid Using the Wheel for Leverage!

As the user correctly highlighted, attempting to use the wheel as a lever to pull a stuck drum off is a recipe for disaster. While it might seem like a clever way to gain extra leverage, it applies uneven force to the wheel bearing. This almost guarantees that you will wreck the wheel bearing, leading to an expensive repair that far outweighs the cost of a proper tool. Always use the correct method and tools.

Understanding Why Drums Get Stuck:

• Rust and Corrosion: Over time, rust can form between the drum and the hub, effectively welding them together.
• Brake Shoe Lip: As brake shoes wear down, they create a slight ridge or lip on the inside edge of the drum. If the shoes are significantly worn, this lip can prevent the drum from sliding over the shoes when you try to remove it.

Step-by-Step for Stubborn Drums:

1. Remove the Wheel: As before, remove the road wheel.
2. Inspect for Retaining Screws: Double-check there are no screws. If there are, refer to Scenario 1.
3. Release Handbrake: Crucially, release the handbrake fully. If it’s engaged, the shoes will be pressing against the drum, making removal impossible.
4. Address the Brake Shoe Lip (if applicable):
   • Often, the main reason a drum won't come off is due to the brake shoes catching on a wear lip inside the drum. You need to retract the self-adjusting mechanism.
   • Look at the backplate of the drum assembly. You should find a small rubber bung or a hole. Remove the bung.
   • Using a small flathead screwdriver, insert it into this hole. You'll need to feel around for the self-adjuster mechanism. Depending on the design, you might need to push a lever or turn a star wheel to retract the shoes. This often involves pushing one way to release tension or rotating a cog. You may need to rotate the drum slightly while trying to find the adjuster.
   • Once you hear or feel the shoes retracting, it should create more clearance.
5. Apply Penetrating Oil: Liberally spray penetrating oil around the centre of the drum where it meets the hub, and around the outer edge. Let it soak for at least 15-30 minutes, or even longer if it's very rusty. Tapping the drum lightly with a hammer can help the oil penetrate.
6. Gentle Tapping: With a rubber mallet or a soft-faced hammer, gently tap around the circumference of the drum. Then, using a regular hammer, tap firmly but carefully on the flat face of the drum between the wheel stud holes. Avoid hitting the studs themselves. The aim is to break the rust bond. Rotate the drum and tap evenly.
7. The Hub Puller: Your Safest Bet

   If the drum still won't budge after the above steps, a hub puller is your next, and safest, course of action. This tool is specifically designed to pull the drum (or hub) squarely and evenly from the axle, preventing damage to the wheel bearing or other components.

   How to Use a Hub Puller:

   1. Attach the puller arms to two or three of the wheel studs. Ensure they are securely fastened.
   2. Position the central bolt of the puller against the end of the axle shaft (or the centre of the hub).
   3. Gradually tighten the central bolt. This will apply even pressure, slowly but surely pulling the drum away from the hub.
   4. As you tighten, you might hear a 'clunk' as the rust bond breaks. Continue tightening until the drum comes free.
   5. If it's still very stubborn, apply more penetrating oil and allow it to soak, then repeat the process.

Comparative Methods for Drum Removal

Here’s a quick comparison of the different approaches:

What to Do Once the Drum is Off

With the drum successfully removed, take the opportunity to inspect the internal components:

• Brake Shoes: Check for wear (compare thickness to new shoes), cracks, oil contamination, or uneven wear.
• Wheel Cylinder: Look for leaks (a sign of a failing cylinder). Any fluid around here means it needs replacement.
• Springs and Hardware: Inspect all springs, adjusters, and clips for corrosion, damage, or breakage. Replace if necessary.
• Inside of the Drum: Check for deep scoring, cracks, or excessive wear (a pronounced lip on the outer edge). If severely scored or beyond the manufacturer's wear limit (usually stamped on the drum), it needs replacing.
• Clean Everything: Use brake cleaner to remove brake dust. Be mindful of inhaling dust, as it can contain asbestos in older systems.

Reassembly Tips

When you're ready to put everything back together, remember these points:

• Ensure all components are clean and correctly positioned.
• Apply a thin layer of high-temperature anti-seize compound to the mating surfaces of the hub and drum to prevent future sticking (but keep it away from the brake friction surfaces!).
• If you replaced shoes, ensure the self-adjuster is correctly set or reset.
• Torque your wheel nuts to the manufacturer's specified setting once the wheel is back on the ground.
• After any brake work, gently pump the brake pedal a few times before driving to ensure the shoes are correctly adjusted and the pedal feels firm.
• Take a test drive in a safe area, applying the brakes gently at first to 'bed in' any new components.

Frequently Asked Questions (FAQs)

Q: My Fiesta drum still won't come off after all these steps, what next?

A: If you've tried retracting the shoes, penetrating oil, tapping, and a hub puller, and it's still stuck, you might have a severely seized bearing or a component inside that's completely failed. At this point, it's often best to consult a professional mechanic. They have more powerful tools and experience with extreme cases.

Q: Do I need to bleed the brakes after removing the drum?

A: Not usually, unless you've opened the hydraulic system (e.g., replaced the wheel cylinder or brake lines). If you only removed the drum and didn't disconnect any hydraulic lines, bleeding shouldn't be necessary.

Q: How often should I check my rear brake drums?

A: It's generally recommended to inspect your drum brakes every 12,000 to 15,000 miles, or at least once a year, as part of your routine vehicle maintenance. However, if you notice any changes in braking performance (e.g., noise, pulling, reduced effectiveness), check them sooner.

Q: Can I replace just one brake drum or set of shoes?

A: While technically possible, it is always highly recommended to replace brake components (drums and shoes) in pairs across an axle to ensure even braking performance. Uneven braking can cause your car to pull to one side and can be dangerous.

Q: What's the torque setting for Fiesta wheel nuts?

A: Torque settings can vary slightly by Fiesta model and year, but a common range is typically between 90-110 Nm (Newton-metres). Always consult your Fiesta's owner's manual or a reliable workshop manual for the exact specification for your specific model year.

Conclusion

Removing the rear brake drums from your Ford Fiesta doesn't have to be an intimidating task, but it does require patience, the right tools, and a strict adherence to safety. Whether you have an easy-to-manage Mk7.5 with retaining screws or an older model requiring a bit more persuasion, understanding the correct procedures is key. Remember, the hub puller is your friend for stubborn drums, and under no circumstances should you attempt to use the wheel for leverage, as this will almost certainly lead to costly wheel bearing damage. By following this guide, you can confidently tackle your Fiesta's rear brake drum removal, ensuring your car remains safe and reliable on the road.

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