新brake rotor,pad,开起来吱吱叫。

[appledriver]

是什么问题啊？

 

[bwangcan]

新brake rotor,pad,开起来吱吱叫

The garage which replaced your rotors and brake pads did not take the time to do a fine job.

The brake material, which touches the rotor disk to create brake force, is sitting on the brake pad steel base. The both ends of each brake pad steel base are plugged in two guiding channels. When you apply brake to your car, the two brake pads will slide in the channels, but towards the rotor disk at both sides to generate resistance. So your car will slow down.

When you release your foot from your brake pedal, your brake pads should slide in the channels, but away from the rotor disc on both sides. In this case, if the two ends of brake pads steel base have sharp edges, or the brake pads steel base (with the two ends) is too long (longer than the distance between the two channels), the brake pads will stuck in the channels. Both brake pads can not smoothly move away. The brake pads could sit crocked in the guiding channels, part of the brake pads touch the rotor. It will generate noise.

Solution:
Go back to the garage; ask them to clean up the sharp edges of the two ends of each brake pad steel base. Make the brake pads smoothly sliding in the guiding channels. Ask them clean up the rust dust inside the guiding channels, too. Also, they should apply some special grease on the back and the two end of the brake pads steel base. After that you will have no more noise.

Good luck.

 

[appledriver]

Thanks a lot. Are you repairing cars? If yes, I'd like to let you do it.

I went to the garage today, but they cannot find the root cause. They said it's not a big problem, many cars have it.

 

[bwangcan]

I am not an auto mechanic. Repairing cars is not my profession. As a hobby, I fix only my own cars.

The people who repair cars do not have time to sit down writing all the details for you. They may even not know why you have noise on your brake.

Replacing brake rotors and pads is a simple mechanical task. It is usually performed by the entry level mechanic. The job goes by the hour. The garage needs to make money. The mechanic just does not want to take the time to make the pads smoothly fit. Or he does not know what could be a problem if the pads do not have a smooth fit.

If the garage does not want to take care of the issue, I do not know who can resolve the problem.

 

[appledriver]

It seems I need to spend more money on repaired parts.

everything he repaired will need to go back asking for repairing again, and still cannot solve it. Maybe some people (or MaJia) said he is a good person and has good technique, but I don't think so. I'll never go to his garage again. Nobody is making easy money, include me - don't want to spend double money and time anymore.

 

[tdr]

对于机械产品，配件的质量重要，装配的水平也很重要，要不然怎么有八级钳工呢

 

[appledriver]

算我倒霉，碰到了级外钳工。

 

[appledriver]

老黑亲自动手，把问题解决了。

老黑的技术还是过硬的。

另外：BS两边搬弄是非的小是非佬。