Fan motor question

[Dr.Destructo]

To anybody that is mechanically inclined..........

When a fan gets older, it can start getting a "knocking" sound. Which can make a lot of other different sounds the more its used.

I've tried using WD40, which works for a day or two, but then the noise gets worse.
I know WD40 isn't a lube you'd use on something that gets hot while in use, but I couldn't think of anything else.

Is there anything you can use to quiet a used fan motor from those "knocking" noises, so it runs smooth and quiet again?



Thanks

 

[westwall]

To anybody that is mechanically inclined..........

When a fan gets older, it can start getting a "knocking" sound. Which can make a lot of other different sounds the more its used.

I've tried using WD40, which works for a day or two, but then the noise gets worse.
I know WD40 isn't a lube you'd use on something that gets hot while in use, but I couldn't think of anything else.

Is there anything you can use to quiet a used fan motor from those "knocking" noises, so it runs smooth and quiet again?



Thanks

You can try dry lube, silicone based. Gun stores carry it.

 

[Dr.Destructo]

You can try dry lube, silicone based. Gun stores carry it.

Any certain brands or types that would work best on fan motors??

 

[progressive hunter]

To anybody that is mechanically inclined..........

When a fan gets older, it can start getting a "knocking" sound. Which can make a lot of other different sounds the more its used.

I've tried using WD40, which works for a day or two, but then the noise gets worse.
I know WD40 isn't a lube you'd use on something that gets hot while in use, but I couldn't think of anything else.

Is there anything you can use to quiet a used fan motor from those "knocking" noises, so it runs smooth and quiet again?



Thanks

look for a hole on the back of the motor on the shaft and put some 3in1 oil or marvels mystery oil,,


if theres no hole you can drill one,, sometimes the shaft is in the open,,

wd40 only lubricates for a few minutes,,

 

[Dr.Destructo]

look for a hole on the back of the motor on the shaft and put some 3in1 oil or marvels mystery oil,,


if theres no hole you can drill one,, sometimes the shaft is in the open,,

wd40 only lubricates for a few minutes,,

I did try 3 in 1 once, I have some for my sewing machines.

It worked for a couple days, then the motor started clunking again.

I will have to look for that mystery oil though.

 

[Sunni Man]

I'm a fan of WD-40 Silicone spray.
It's way better than regular WD-40

 

[progressive hunter]

I did try 3 in 1 once, I have some for my sewing machines.

It worked for a couple days, then the motor started clunking again.

I will have to look for that mystery oil though.

sometimes they are just worn out,,

they dont make them like they used to,,

 

[Dr.Destructo]

sometimes they are just worn out,,

they dont make them like they used to,,

Well, I use a lot of fans. I like my "white noise" and I hate stagnent or still air.

So I use lots of small fans, especially in the summer.

It just gets expensive having to replace them every couple of years.
So I was just wondering if theres a way to keep the going quiet without having to throw them out and buy more.

 

[Rawley]

To anybody that is mechanically inclined..........

When a fan gets older, it can start getting a "knocking" sound. Which can make a lot of other different sounds the more its used.

I've tried using WD40, which works for a day or two, but then the noise gets worse.
I know WD40 isn't a lube you'd use on something that gets hot while in use, but I couldn't think of anything else.

Is there anything you can use to quiet a used fan motor from those "knocking" noises, so it runs smooth and quiet again?



Thanks

Buy a new one?

 

[progressive hunter]

Well, I use a lot of fans. I like my "white noise" and I hate stagnent or still air.

So I use lots of small fans, especially in the summer.

It just gets expensive having to replace them every couple of years.
So I was just wondering if theres a way to keep the going quiet without having to throw them out and buy more.

I used to pick up old metal box fans on the curb when people threw them out,,

just oil them up and off you go,,

I used them when painting apartments to draw dust and fumes out,,

at one time and had 10 or more of them,,

the new ones are crap and plastic,,

 

[Dr.Destructo]

I used to pick up old metal box fans on the curb when people threw them out,,

just oil them up and off you go,,

I used them when painting apartments to draw dust and fumes out,,

at one time and had 10 or more of them,,

the new ones are crap and plastic,,

Well, my intent is to keep them going, till they don't go no mo.

But keeping them from making knocking noises is whats getting to me. I like QUIET. Can't deal with the knocking noises.
Even though I'd love to keep the fans around as long as possible.

 

[Sunni Man]

You can try dry lube, silicone based. Gun stores carry it.

Typically dry lube will prematurely wear rotating parts.

 

[egp320i]

the bearings could just be going out due to lack of lube but a white lithium grease could extend the life a bit longer

If the shaft start to wobble the bearings are already shot

 

[westwall]

Typically dry lube will prematurely wear rotating parts.

I think that's no longer a concern.

 

[Sunni Man]

I think that's no longer a concern.

I can see where dry lube with silicone would work great on the moving parts of a firearm
But would cause wear on rotating parts.

 

[Thunk]

Buy a new one?

I always try smacking it with a hammer first...then I go buy a new one.

 

[Moonglow]

Buy another fan already.

 

[Crepitus]

To anybody that is mechanically inclined..........

When a fan gets older, it can start getting a "knocking" sound. Which can make a lot of other different sounds the more its used.

I've tried using WD40, which works for a day or two, but then the noise gets worse.
I know WD40 isn't a lube you'd use on something that gets hot while in use, but I couldn't think of anything else.

Is there anything you can use to quiet a used fan motor from those "knocking" noises, so it runs smooth and quiet again?



Thanks

clean the blades

 

[Missourian]

To anybody that is mechanically inclined..........

When a fan gets older, it can start getting a "knocking" sound. Which can make a lot of other different sounds the more its used.

I've tried using WD40, which works for a day or two, but then the noise gets worse.
I know WD40 isn't a lube you'd use on something that gets hot while in use, but I couldn't think of anything else.

Is there anything you can use to quiet a used fan motor from those "knocking" noises, so it runs smooth and quiet again?



Thanks

Bad bearing.

Usually, like your car engine...by the time you hear it knocking, it's already too late.

But... Here's a video...



FYI... Many fans are not user serviceable.