E30 4 Pot Brake Caliper 330x28 Iron Disc And Aluminum Bell

Jekit 4pot brake caliper-330x28 iron disc and aluminum bell for E30

The brake system is a system to protect personal safety. Upgrading the brake is also to keep improving and to make the car look like a model. I hope to win attention from the appearance. Selecting the brake disc calipers is not a careless thing. It also needs a skilled, experienced and rigorous installer to complete the installation, In particular, there are many differences between the modified brake system and the traditional original brake system, such as the direction of the disc, the distinction between the left and right of the caliper, the direction of emptying the nozzle, etc. there are strict requirements. In addition, the shape and paint color of the modified brake caliper are not comparable to the original brake caliper, so please handle the modified brake caliper with care, Try to avoid scratching and paint peeling during installation.
Here are some problems that should be paid attention to when installing and refitting the brake system.

1. Before installing the modified brake system, the shaft head must be polished smoothly, otherwise the contact between the shaft head and the brake disc will be uneven, and finally the brake system will shake and vibrate.

2. Pay attention to the direction of the disc. The function of the air guide groove is to dissipate heat. The working principle is that the air guide groove constantly throws out the heat of the brake disc as the vehicle moves forward. Therefore, we must pay attention to the direction. It is to throw out, not to bump the wind in.

3. The emptying nozzle of the brake caliper must be upward, because the air moves upward during emptying. Pay attention to this. In addition, when emptying, it is recommended to use the traditional foot and hand emptying method instead of the oil changer.

4. Generally, the pressure leakage test will be carried out when the modified calipers leave the factory, so generally, the new genuine original calipers will not leak oil. The oil leakage of the caliper is mainly in the piston, not in the nozzle. Moreover, the drain nozzle may also be damaged due to improper operation during installation. Therefore, the oil leakage from the drain nozzle is not within the manufacturer's warranty. If there is oil leakage in the nozzle, it can be solved according to the third point, or it can be solved by replacing a new emptying nozzle. The new emptying nozzle is provided by the manufacturer free of charge. This can be obtained from local dealers.

5. Brake running in. The correct method of brake running in is when the brake is installed correctly. Accelerate the car to about 100km / h, then brake to 50km, then accelerate to 100km, and then slow down to 50km for 7 ~ 10 times. The running in can be completed. However, the newly modified brake must go through 500 ~ 1000 km running in to achieve the best state. In addition, remember not to use the method of violent sudden braking to open the disc for the new brake. This method is easy to carbonize the material of the brake pad. In addition, the braking performance of the newly installed braking system may be only 70% of that in the best state, so pay attention to the safe distance.

6. When installing the brake system, remember to carefully check whether the brake oil pipe will scratch the wheel hub, because this may lead to the brake oil pipe being scratched through, which is a very serious problem. It is also necessary to carefully check whether the ABS sensor line has the opportunity to scratch the inner side of the wheel hub after disassembly, which is also a very serious safety hazard.

7. Jitter of the brake system: there are many reasons for the jitter of the brake system. One is that after intense braking, the brake disc flushes without cooling, resulting in the deformation of the brake disc. This situation is easy to occur in car washing. Therefore, after intense driving, we can't immediately flush the brake system with a faucet. We have to wait about 10 minutes for it to cool down. In another case, the dynamic balance data of the wheel hub is inaccurate, resulting in the shaking of the steering wheel when braking. This situation is most likely to be ignored. Generally speaking, the shaking of the car when accelerating is mostly related to the half axle. If the car slides without stepping on the accelerator, and the shaking of the steering wheel is mostly related to the dynamic balance of the rim. If the steering wheel shakes when braking, check the dynamic balance of the wheel hub and whether the brake disc is deformed. If the brake disc is deformed, The disc needs to be re polished, that is, the brake disc. It is also called brake disc dynamic balance, which is solved in this way.