Noise coming from the engine at high speed

Hello friends.my name serhat.98model 1.6 sedan griffe do I have
I wanted to introduce myself in the original.atiker lpg li..onceliklee in 168 thousand. a ball bearing sound group.an incredibly disturbing sound.I thought it was just behind the goos. Is there anybody in between? good forums to all

In addition, 3000-4000 rpm out of the sound of the vehicle, like a car.

clogged exhaust can be the humming cause.

dude exhaust rear last muffler has just changed. Catalytic convector was canceled and the muffler was installed because it was touched.

teacher, did you ever open the hood and look at the engine at that time, is there an excessive shaking of the engine?

No, we've looked all over my back. There is no abnormality, I don't think it's okay. I want you to hit the car while the interesting side is on the road. A sound from the bottom with the sound of the engine, as if it was a broken piece of freezing.

As you said, any piece may be out of balance.

do not have friends our friend pug cu who has an experience on this subject

Any broken ball and rotating shaft may cause this type of sound.

As I said, the fact that he is doing it at certain speed intervals strengthens the balance of equality.