Domestic cars are reliable and quite durable, despite the fact that they are widely scolded. Low cost, accessibility of elemental base - these are the key points when choosing a machine. But each driver tries to improve his iron horse, therefore, for the beauty and reliability, they often put rear disc brakes on the VAZ-2114. Yes, it’s beautiful - the drums look wretched on alloy wheels. And it’s reliable - the effectiveness of the brakes is increased several times in comparison with the standard equipment of the car.
Basic information
Since the release of the first car at the automobile plant in Tolyatti, and this was the Zhiguli-2101 model, popularly nicknamed the “kopek,” almost to this day the brake system of all cars has remained unchanged. Ahead were placed disk, and behind drum. This is logical, since the main load during braking falls on the front ones.
Of course, such a scheme is much more effective than the GAZ-24, which has drums in a circle. Because it will not be a secret that the disc brake pads catch much better, and the path to the stop, respectively, is much smaller.
Tuning VAZ-2114
VAZ-2114 is a fairly fresh model, which replaced the famous nine. The base of the cars is the same, even such trifles as the taillights, and they are similar. But significantly improve the car only by yourself.
It is worth noting that the Lada-Kalina is the first model on which disc brakes are installed from the factory on the rear axle. And we must also mention that you make all changes in your car at your own risk. Intervention, change of design, steering, brake system is punishable by the removal of license plates and the prohibition of the operation of the vehicle. But if this does not scare you, you can continue reading.
What you need for tuning
If you still decide to put the rear disc brakes on the VAZ-2114, you need to know what elements will be required for this:
- Brake discs. Ideal are those that are installed on the front wheels of the VAZ-2114 or similar models - 2108, 2109. Their diameter should be 240 mm. But you need to pay attention to the fact that you can not do without a turner - the hub differs slightly in design. And more specifically, it will have to be bored from a diameter of 58 mm to 60.
- Calipers, brake pads, hoses - also from the front brakes of the Samara-1 and Samara-2 generation models. Therefore, you can safely buy the whole set of front brakes for nine.
- Plates for mounting calipers. You can either make them yourself or purchase them at car dealerships.
- 12 M10X1.25 bolts 30 mm long.
- Remote washers - 8 pieces. Ideal are those that are installed in the gas distribution mechanism of the 8-valve models VAZ-2109 and 2114.
Well, that’s all, all spare parts are bought, all the necessary tools are available. The only thing left is to carry out a complete modernization. It should be noted that the fairly new VAZ-2114 (their price in the secondary market remains high) do not have rear brakes, but they are easily redone.
Assembly disassembly
Before disassembling the entire brake system on the rear axle, fluid must be drained. For this, bleeders located on the calipers are twisted. Therefore, in the future it will be necessary to make a pumping. Initial work is as follows:
- Loosen the cable and reduce the pads. Unscrew the guide pins that secure the drum to the wheel hub. If you cannot easily remove the drum, treat the seat abundantly with WD-40 penetrating grease. It should always be at hand when carrying out such repairs. Even more - in advance (about half an hour), all threaded joints should be treated with this fluid.
- Remove the springs with a flat screwdriver and remove the spacer bar. By disconnecting the parking brake cable, you can completely dismantle the old, now unnecessary, pads.
Please note that you will no longer have a handbrake (unless you install a hydraulic one). Therefore, absolutely all components that somehow relate to the cable, including it, can be removed. Now you need to talk about the installation.
Mounting disc brakes
The location of the caliper mechanism can be either in front or behind the axis of the rear wheel. It will work in any case, but if installed at the back, the efficiency becomes a little higher. Further, your task is to correctly align the hub with the faceplate. Pay attention to defects, even the smallest. In the event that there are deficiencies, carry out the docking work again.
Straighten the corners of the rear beam. Without this, it will not be possible to put the rear hub. It is most convenient to carry out straightening with a grinder. To install the disc brake caliper, you need to do a few more steps:
- Mount the brackets on the faceplate.
- Attach the brake disc to the wheel hub.
- Install distance washers at contact points for increased reliability.
- Fix the faceplates and staples.
- Seal the brake mechanism.
- Fasten the caliper and install the brake pads.
That's all, in general, as you can see, the work is simple. But you should be careful when installing, use only new elements, especially bolts. Do not use bolts that were in use. Their thread is already deformed, although this is not visible to the naked eye.
Positive qualities of disc rear brakes
Yes, the main plus is an increase in security. The braking distance is reduced, and it does not depend on the weather. The operation of the unit is stable, the weather in no way affects it. For example, during rain drum brakes become ineffective, the braking distance increases. This is not observed when using disk.
Overheating is not terrible for disk designs. For example, when braking at high speeds, the fluid in the system heats up due to the high friction force. The drum and pads can warm up almost red-hot - up to 600 degrees. As a result, the pedal fails, the braking performance deteriorates at times. You will never feel such, if disk brakes are installed. Their device is simple and high reliability, so you can not worry about security.
Bleeding the brakes
After carrying out all the work, it is necessary to pump out - getting rid of the air in the system. This is essential to improve work efficiency. And since the modernization has begun, do not forget to change all the components that serve for a long time. Replace hoses, front pads, VAZ-2114 brake servo , master cylinder. As for the liquid, it should be changed approximately every two years. Briefly, the pumping procedure looks like this:
- Pour liquid into the expansion tank.
- Bleed the right rear caliper.
- Check fluid level, top up if necessary.
- Bleed the left rear caliper.
- Repeat step 3.
- Bleed the right front caliper.
- Perform step 3.
- Bleed the front left caliper last.
Here's how to pump the brakes of the VAZ 2114 correctly, the essence of the procedure is to go from the farthest to the nearest caliper (relative to the main brake cylinder).
Need a handbrake?
But some motorists can not do without a parking brake. And the new VAZ-2114, the price of which at one time was close to 300 thousand, without a parking brake, but this is not very convenient. In cities, parking lots without it are simply nowhere. And if the autostart system is installed, then you simply can’t do without a handbrake - it is not recommended to set it to speed.
What do you need to install this mechanism? First of all, this is the handbrake itself, but not with a cable, but with a hydraulic cylinder. As a rule, they are universal, and Chinese new mechanisms cost from 1,500 rubles and above. And the rear disc brakes on the VAZ 2114 will be equipped with a parking brake system.
The installation procedure is extremely simple - put it in place of the old one, fasten it with bolts, connect it to the hydraulic system, namely, to the part that controls the calipers on the rear axle. That's all, from now on you will be with a handbrake that will work perfectly in any conditions. No overheating, no frost, no heavy rain. And even in cold weather you can use the handbrake.
Conclusion
When the installation is completed and bleeding is completed, the brakes are adjusted, carefully inspect all components, tighten the screw connections. And after the first exit on the road you will feel the difference with the previous braking. It will be much more efficient, the car will become more stable.
I must admit that such a revision is necessary, and the traffic police should allow it, however, with reservations. It is impossible to collective farms, at least an experienced master must issue an acceptance of work and a permit for operation. Of course, these are dreams; this cannot happen. Therefore, it is now necessary to carry out alterations solely at your own peril and risk.
But the fact is that the rear disc brakes on the VAZ-2114 are effective and reliable. And you will only benefit from their installation by protecting yourself, your passengers and pedestrians.