Filling cotton inside of muffler?

coxaddict wrote:Hi Levent,
If you can find window screen made of aluminum you can try cutting a strip of it, roll it up to be able to fit in the muffler.  The many layers would help disperse the sound waves without creating too much back pressure.  

MauricioB wrote:Hello Levent, I would not   use cotton there, because on the one hand it will saturate quickly, it can get hot and it can even ignite by the engine's flame output from the exhaust port. You are at risk of fire.
Be careful with steel wool, if the threads are fine, it is also ignited by exhaust flames.
You must use metallic material, but thick enough in diameter so that it does not catch fire or melt,
If you want to silence the cylinder, use a perforated iron plate - steel belt, as some Cox engines originally came, and that will lower the noise a lot, although you will also lose some power.

getback wrote:I think it will become wet with exhaust castor and choke the engine down / maybe loose steel wool?

MauricioB wrote:A good friend a long time ago gave me this accessory, because it must be something interesting to use, although when I do, I will put a pressure pressurizer for the fuel tank.