Whistling light bars

[darthdicky]

Has anyone found a good source for something to stop light bars whistling? It seems a common complaint and plenty of cheap plastic things are available in the US, but not over here?

https://hidkitpros.com/shop/rubber-windwhistle-isolator-for-led-light-bars/

Just seems to be a small bit of plastic which wedges between the cooling fins and stops them vibrating at motorway speeds.

Anyone got a good source or an alternative fix?

Richard

[simonr]

Looks an easy thing to draw, then 3D Print?

Let me know if you'd like help with either - I'd be happy to oblige.

Si

[FridgeFreezer]

Is that thing blocking up all the heat sink fins? Your LED strip could have a much shorter lifespan if you do that surely

[landroversforever]

1 hour ago, FridgeFreezer said:

Is that thing blocking up all the heat sink fins? Your LED strip could have a much shorter lifespan if you do that surely

Should be ok it's not blocking much as they're fitted in a spaced out fashion. 

Light bar on a mates van whistled at anything over ~25mph... that happened part way into the first drive with it on so a rag was wedged in the middle between it and the body. It's worked beautifully for the last 3 years

[darthdicky]

It does seem like a good use of a 3D printer Simon, but I'm not sure if plastic would be flexible enough to fit between the fins unless very precisely made? Rubber may be better perhaps?

Unfortunately mine isn't a branded light and I got it second hand so I don't know what make it is or whether there's a market for more of them, so I'm tempted to say it's probably not worth much effort!

I'm not worried about heat build up as they are spaced out and I'll only ever switch it on at night when it's not very hot anyway. Want to avoid the other options which seem suggested online which is putting rubber strips or tape along the whole thing which would cause problems with heat.

I have just spotted this though, so tempted to order a pack for £9.50 and see if they fit: https://www.frontrunneroutfitters.com/en/uk/lightbar-isolator-kit.html but shipping is £13.50

Edit: Found them in the UK for £13.89 delivered here: https://www.aj4wdoutfitters.co.uk/product-page/lightbar-isolator-kit-by-front-runner-ligh907 so will see if they work

Edited June 21, 2021 by darthdicky
Update

[Troll Hunter]

This is ironic!  Over here many of us BUY whistles to fit to our vehicles to scare wildlife, particularly deer, elk and moose.  You certainly don't want any of these coming through the windscreen.

https://www.amazon.ca/Vehicles-Whistles-Motorcycles-Collisions-Ultrasonic/dp/B083GT4FF6/ref=asc_df_B083GT4FF6/?tag=googleshopc0c-20&linkCode=df0&hvadid=459613115671&hvpos=&hvnetw=g&hvrand=203416747954920397&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=1001908&hvtargid=pla-1036004801039&psc=1

Mike

[landroversforever]

12 hours ago, darthdicky said:

It does seem like a good use of a 3D printer Simon, but I'm not sure if plastic would be flexible enough to fit between the fins unless very precisely made? Rubber may be better perhaps?

Unfortunately mine isn't a branded light and I got it second hand so I don't know what make it is or whether there's a market for more of them, so I'm tempted to say it's probably not worth much effort!

I'm not worried about heat build up as they are spaced out and I'll only ever switch it on at night when it's not very hot anyway. Want to avoid the other options which seem suggested online which is putting rubber strips or tape along the whole thing which would cause problems with heat.

I have just spotted this though, so tempted to order a pack for £9.50 and see if they fit: https://www.frontrunneroutfitters.com/en/uk/lightbar-isolator-kit.html but shipping is £13.50

Edit: Found them in the UK for £13.89 delivered here: https://www.aj4wdoutfitters.co.uk/product-page/lightbar-isolator-kit-by-front-runner-ligh907 so will see if they work

You can get flexible filament for 3d printers which would work nicely. 

[Ed Poore]

15 hours ago, darthdicky said:

It does seem like a good use of a 3D printer Simon, but I'm not sure if plastic would be flexible enough to fit between the fins unless very precisely made? Rubber may be better perhaps?

Unfortunately mine isn't a branded light and I got it second hand so I don't know what make it is or whether there's a market for more of them, so I'm tempted to say it's probably not worth much effort!

I'm not worried about heat build up as they are spaced out and I'll only ever switch it on at night when it's not very hot anyway. Want to avoid the other options which seem suggested online which is putting rubber strips or tape along the whole thing which would cause problems with heat.

I have just spotted this though, so tempted to order a pack for £9.50 and see if they fit: https://www.frontrunneroutfitters.com/en/uk/lightbar-isolator-kit.html but shipping is £13.50

Edit: Found them in the UK for £13.89 delivered here: https://www.aj4wdoutfitters.co.uk/product-page/lightbar-isolator-kit-by-front-runner-ligh907 so will see if they work

If it's just something to change the harmonic frequency what about just running some hot glue in between the fins.

[sharkey964]

I have light bars on both my 110 & 90,this high pitch whistling really bugged me,so,after a bit of trial & error I found that a piece of flexible edge trim clipped onto each of the fins.

This sort of thing.

https://www.amazon.com/Edge-Trim-Black-Small-Length/dp/B00KG9BAY0

Completly stops the noise,it doesn't effect the cooling the fins give to the light bar too much either,& cheap.

Hope this of help to someone.

Marc.