Lemo whistles

[PoeDung]

My Lemo whistles when the airflow is wide open. Is there a way to fix this?

 

[WharfRat1976]

Yea, get a Mephisto.

 

[PoeDung]

Need a real answer, not some douche responding.

 

[WillyZee]

I'm interested too ... some of my Kayfuns do this sometimes ... not that big of a deal, however, I don't know how to fix it.

 

[VaPreis]

My Lemo whistles when the airflow is wide open. Is there a way to fix this?

It could be as simple as a machining burr on one of the air holes in the base. Take the bottom base section off and look for any extra metal or roughness around the air holes. You might even try covering up the holes one by one to see when the whistle goes away.

You could remove the burr with a small file or maybe clean the holes up a bit with a drill.

 

[VaPreis]

I'm interested too ... some of my Kayfuns do this sometimes ... not that big of a deal, however, I don't know how to fix it.

I'd had a couple of KFL clones whistle, and it's usually the air hole in the base causing the problem.

I found the stock air flow on any KFL to restrictive, so I've always drilled them out to 5/64" and then put a little chamfer on the hole with a larger bit. Whistle was always gone after that.

If you have access to a good drill press, they are fairly easy to drill through.

 

[93gc40]

Debur and round-off all the edges of the air path and/or increase the size of the air holes. The noise/whistle comes from restriction of the air flow and the air BOUNCING off obstructions in the path.