Rear brake system in a car Škoda Rapid often raises questions among owners when scheduled maintenance is required. Unlike disc brakes, drum brakes require a more careful approach and specific skills for safe dismantling. Many car owners are faced with the fact that the drum does not simply come off, even after removing the guide pins, and begin to panic, fearing that expensive parts will break.
In fact, the problem often lies not in the malfunction of the mechanism, but in the design features brake shield and accumulation of a corrosive layer on the seat. If you are planning to replace brake pads or check the status brake cylinder, you will have to figure out the process of removing the drum. This is not as difficult a task as it seems at first glance, but it does require patience and the right tool.
Preparation of the workplace and necessary tools
Before you lift your car, make sure you have everything you need for the job. Without specialized tools, the process can take hours or lead to damage to parts. You'll need a standard set of wrenches, but pay special attention to the wheel bolt wrenches and drum puller.
Wheel on Škoda Rapid is secured with hex bolts, so a regular ratchet wrench may not fit without an adapter. It is also important to prepare a jack and reliable stands, since working under the machine without additional support is dangerous. Don’t forget about the wheel wrench, which often comes with the car, but it’s better to have your own, more convenient tool.
- 🔧 Socket set (including 17mm for wheel bolts)
- 🛠️ Brake drum puller or mounting paddle
- 💨 Aerosol lubricant WD-40 or equivalent for rust removal
- 🧤 Protective gloves and goggles for working with dust
It is important to prepare a place in advance to store the removed parts. Dirt and small items can easily get lost, making reassembly difficult. Place a clean rag on the ground and arrange the bolts and pins in the order in which they are removed.
⚠️ Attention: Do not use engine oil or graphite grease to lubricate brake system parts! This can lead to brake failure and an accident.
The process of removing the wheel and opening access
The first step is to lift the vehicle safely. Install Škoda Rapid on a level surface, apply the handbrake on the front wheel (if it is removable) and place chocks under the front wheels. If you are working on the rear wheel, the handbrake will need to be released as it holds that particular assembly in place.
Loosen the wheel bolts while the vehicle is on the ground before lifting. This will prevent the wheel from spinning when unscrewing. Raise the car with a jack at the point provided by the manufacturer and install a safety stand under the threshold or a special platform.
- 🚗 Remove the wheel completely and store it in a safe place.
- 🔍 Clean the area around the drum from dirt and sand
- 🔦 Inspect the condition of the brake shield for damage
Sometimes on Škoda Rapid The wheel rim may stick to the hub due to corrosion or dirt. In this case, do not try to knock it down with a hammer with great force. It is better to use a spatula or lightly hit the inside of the disc with a rubber mallet.
☑️ Preparing to remove the drum
Removing guide pins and clamps
After removing the wheel, you will see the brake drum itself, secured by two guide pins. These pins have a screwdriver or hex head, depending on the year of manufacture and configuration Škoda Rapid. They must be unscrewed counterclockwise.
If the pins do not budge, use a penetrating lubricant and give it time to work. Do not use excessive force as this may strip the threads in the aluminum hub housing, resulting in costly repairs. In rare cases, the head of the pin may be torn off, and then the remaining parts will have to be drilled out.
After unscrewing the pins, they must be carefully removed. Sometimes they fall out on their own, but more often you have to pry them off with a screwdriver. Make sure you don't lose any spring washers that could pop out during removal.
What to do if the pin is broken?
If the head of the pin is torn off, it is necessary to use a bolt extractor or carefully drill out the pin shaft at low speed, maintaining alignment. After this, you can screw in a new pin.
Methods for removing a stuck drum
The most difficult step is removing the drum itself. If it's just slid onto the hub, it should come off easily once the pins are removed. However, in practice brake drum often sticks to the hub due to rust and wear products of the pads.
In this case, do not try to remove it with your hands or by hitting the side surface. This may cause cracks in the metal of the drum. Use special pullers that fit into the threaded holes on the drum and push it out. If there is no puller, you can carefully use a mounting spatula, prying the drum from different sides, but do this very carefully.
- 🔨 Tap the end of the hub with a rubber mallet through the wooden spacer
- 🌡️ Treat the joint between the drum and hub with penetrating lubricant.
- ⚙️ Use a puller to symmetrically pull out the part
Sometimes heating the drum with a hair dryer helps, as the metal expands and frees the jammed part. But do not overheat it to avoid damaging the seals and bearings.
⚠️ Attention: Never hit the working surface of the drum directly with a hammer! This will disrupt its geometry and lead to vibrations during braking.
- Drum puller
- Mounting blade
- Hammer and mallet
- Chemical lubricant
- Other
Technical nuances of drum design
When removing the drum Škoda Rapid it is important to understand the design hand brake. The handbrake cable passes through the center of the drum and rests on a lever that spreads the pads. If the handbrake is tightened, the drum simply will not come off, since the pads rest against its walls.
Before starting work, make sure that the handbrake lever is fully depressed. If the mechanism is soured, you may need to unscrew the cable from the lever on the rear beam or loosen its tension. It is also worth checking the adjusting nut on the cable to ensure that the pads are not too far apart.
Inside the drum is a mechanism for diluting pads, which can be sour. If you are planning to replace the pads, be sure to clean and lubricate the guide pads and grooves, but avoid getting lubricated on the friction pads.
Before removing the drum, take a picture of the location of the springs and levers of the hand brake so that during assembly you do not get confused in their purpose.
Compatibility and Size Chart
For the correct selection of spare parts and understanding of dimensions, it is useful to know the main dimensions of the brake assembly. The table below shows the data specific to most versions. Škoda Rapid with drum brakes.
| Parameter | Meaning | Note |
|---|---|---|
| Drum diameter | 200 mm | Standard size for most complete sets |
| Number of pins | 2 pcs. | Fastening guides |
| Size of wheel bolts | 17 mm | Socket head |
| Bearing type | Pressed. | At the hub of the rear wheel |
Knowing these parameters will help you avoid mistakes when ordering new parts. If the diameter of the drum is different, it is possible that your car has a different version of the suspension or brake system.
Features of assembly and adjustment
After replacing the pads or cleaning the mechanism, reverse assembly requires attention. Before putting on the drum, make sure that the pads are flat and do not touch the edges. If the handbrake has been disassembled, it must be adjusted correctly.
Adjustment of the gap between the pads and the drum is automatic during operation, but the initial installation must be accurate. Make sure that the drum rotates freely without touching the pads. If it touches, it is possible that the pads are diluted too much or the adjustment mechanism did not work.
- 🛠️ Check the smoothness of the rotation of the drum with your hand
- 🔧 Adjust the tension of the handbrake cable
- 🚗 Lower the car and press the brake pedal several times.
The first few kilometers should be moved with caution and avoid sudden stops.
The main task during assembly is to ensure free rotation of the drum without touching the pads, but with a minimum gap for instantaneous operation of the brakes.
Common mistakes and ways to prevent them
Many owners Škoda Rapid They make typical errors in the maintenance of the brake system. One of the most common is the use of inappropriate lubricant for guides. This leads to the fact that the pads stop returning to their original position, and the drum overheats.
Another mistake is to try to remove the drum without unscrewing the guide pins or without weakening the hand brake. This can lead to a breakdown of the mechanism or injury. Always act consistently and do not miss the preparatory stages.
Also, do not ignore the condition of the anther of the brake cylinder. If it is torn, dirt and water will get inside, which will accelerate the wear of parts. When changing the drum, always inspect and replace the anther if necessary.
⚠️ Warning: If it doesn’t rotate after installing the new drum, check if you’ve confused the left and right sides when assembling the handbrake mechanism.
Why is the drum warming?
Overheating of the drum can be caused by a jammed cylinder piston, improper adjustment of the hand brake or the use of poor-quality high friction shoes.
FAQ: Answers to frequently asked questions
Why doesn't the drum come off after unscrewing the pins?
It's a problem. The drum sticks to the hub due to rust or wear products. Use a skipper, penetrating lubricant or gently tap the hub through a wooden paddle. Don't hit the drum directly.
Do I need to remove the handbar to replace the drum?
No, you don't need to remove the handbrake cable completely. Just make sure that the lever of the hand is lowered completely, and the pads are not diluted. If the mechanism is oxide, you can slightly loosen the cable or unscrew it from the lever on the beam.
How often should I change the rear brake pads on the Rapid?
The service life depends on the driving style and operating conditions. Usually, the pads are changed every 40-60 thousand kilometers, but if there is a creak or vibration, you need to check immediately.
Is it possible to remove the drum without a special puller?
Yes, you can use the mounting blade, putting the drum on different sides, or gently knock on the hub. However, the removable is the safest and most effective way to eliminate the risk of damage to the part.
What to do if the thread under the pin is broken?
In this case, you will have to use a tag to cut a new thread or install a repair insert. If the thread in the aluminum hub, it is better to consult a specialist, so as not to aggravate the situation.