Motor Noise

Don't worry about it. Eventually the part making all of the noise will break. Then your motor won't work and you'll have no noise. For you, I don't recommend that you try to fix this motor before or after it breaks. You might hurt yourself.

Looking at your previous post you don't have a clue what your doing. Get out of engineering before you kill yourself!

You need to provide more information for people to be able to give you answers.

Yeah, some details, like what kind of motor? Noise? Like a squeal?

For what application and rating of motors are the minimum information required to answer your question. There could be many reasons such as defective bearing, improper maintenance,. If you have operation and maintenance manual you can read it and sometimes find answer in that.

Lubricate the bushings. Oh wait, are you talking about your car?

Hi engr riz,

I am sorry if some of the other posters replies to your enquiry may have been a liitle sarcastic however the solution to your problem is very simple -

Examine the motor very carefully in an attempt to find the volume control device (screw or knob). Be very thorough because some manufacturers manage to disguise the volume control so you will not recognise it!

Once you find the control, turn it to minimum and Voila, your noise problem is gone! It's as easy as that!

If however you fail to locate the volume control you can also solve the problem by employing the services of a 'Specialist Noisiologist'.

The final solution to the problem may lie in the area of the electrical supply, common fault found with the circuit breaker. If this is thought to be the problem, just switch it off and the noise won't occur again!

Yesterday I didn't know how to spell Engineer and today I is one!

@ Tony

I know wat i am doing.. You better answer my question or STFU !!!

@ keith

Thanx for your answer . I dont understand why this squeal becomes low after some time.. Does that has to do with the rotor velocity?

Hi engr riz,

Thanks for coming back. Firstly I must say that, as other posters have pointed out, it is actually impossible to advise you on the cause of this motor noise without details being supplied.

What type of motor, application, mounting, starting method, history, type of noise and possibly location (from drive end/non-drive end) etc are all necessary details before anybody could even comtemplate offering a solution or advice.

With the depth of knowledge and experience available on this site I feel sure that your problem could easily solved, however, as with all engineering problems the more information the better!

I look forward to finding out more details about your problem and perhaps being able to offer a solution.

'A fool is one that thinks he knows it all - A clever person is the one who realises his limitations and asks questions'.

My home heating unit blower motor used to do that( as the speed increased, the noise gradualy went away). I changed the capacitor and the noise wnt away.

* i don't think my ford has one

After that threat, I am surprised that anyone responded. We still don't know if it is an electric motor or an internal combustion engine. You won't answer that simple question, so people are just guessing. My first response was for an electric motor. If you lubricate the bushings, the squeal will stop.

And so, so many go on a wild goose chase once again. Is it possible that these dweebs can be deterred into doing a bona fide log on with locale (and some boilerplate hints at to how achieve best results for their inquiry)?

Gee, I've still awaiting for the one that comes with "I want to do something." We are close, very close too often.

With the CR4 sign on, perhaps should be implemented is when a newbie may have to check as a Student/Learner or the like. Maybe a moderator will pick up on this. It's overdue.

Hi Bill ML,

I echo your sentiments 100%. Unfortuneately all bulletin boards, forums, discussion sites etc. suffer from the same drawback and it is very difficult to overcome.

My experience with CR4 is that there is a depth of knowledge in the membership available from people who are prepared to share their experience and knowledge and it quickly becomes apparent from their postings who these people are. One should bear in mind that all the technical training and education received is virtually useless without practical experience and looking at some of the postings it becomes obvious that the 'grey beards' with the experience are prepared to share.

Then there is the other side of the coin - the sometimes anonymous (Guest), sometimes nom de plume'd poster who either asks stupid questions or gives ridiculous answers. My experience (gained from all sorts of forums) is that this type of poster does this on purpose to disrupt the forum.

The solution to the problem, I believe, is quite difficult and would involve a lot of extra work by the site moderators, however perhaps more stringent membership criteria and log on details (as you have suggested) may be a start. The ability to track and confirm IP addresses as part of the control could also be considered.

The one thing the OP on this 'motor noise' thread did achieve is a flurry of activity and a demonstration of the exact problem we are facing. Posters like this should find themselves more at home on the Social Networks where this nonsense abounds.

Anybody with the slightest technical education is very aware of the necessity for detail in any question which I believe puts the OP posting in context. There has been ample opportunity for the OP to post these details! Perhaps the moderators should take the lead from the sport of boxing and initiate a count system - 1 : 2 : 3 & You're OUT!

Sometimes you think you are talking with a fool & then they open their mouth and confirm it!

New person be wise to careful what wish for, my advice for one of arrogant empty topic post.

i presume your talking about an internal combustion engine, a car motor per say. i need more information. diesel?, petrol?, what type of noise? engine noise?, exhast noise?,

I don't know what you're complaining about. When this motor stops making noise, you're likely to fall out of the sky.

Wow! We finally got something out of the OP (other than arrogance). It IS a squeal!

amen to that

While it is difficult to diagnose the problem from the lack of detail, may I make one comment.

If the motor is driving a machine via a belt drive, it is common for the belts to squeal on start-up, but the noise usually goes away soon after, unless the belts are too loose or poorly aligned. When I was measuring vibration on large (170 kW) fans at Bondi STP, they always squealed because of the high starting torque, but the noise disappeared fairly quickly.

rosin might has fixed the squealing.

The blower motor in my car squeals when it's cold. It stops after a while (warms up).

The bearings are worn and that's what makes the squeal. This happens to cars with high miles. Mine has 200K on it and others I've had with high miles have done the same. Different makes and models all seem to do it eventually!

I know the solution is to replace the motor, but I just tolerate it for now. When it stops working (probably when I need it most) I'll replace it. This has always been my daughters philosophy, drive it until it breaks, maintenance is for the weak!

Maybe you can ignore the noise until the motor no longer works - or replace it now.

These things may happen a bit after start-up. (1) Bearings may warm up, and lubrication improve, (2) Belt drives may warm up, and slippage decreases, (3) Work load may increase (Such as an air compressor), (4) Work load may decrease (Such as a vacuum pump). Try stopping and re-starting the motor after it has been running a while, and see if the symptoms remain. Good Luck!