Hello all. I have tried searching old postings for any fixes for the loud diesel on my 1430 but didn't find any. Has anyone done any mods to quiet it down a bit??
I have tried several different type of hearing protection already but there has to be something better. I find that if I work for more than a couple hours straight, I get a head ache.
Can I attach a second muffler?
A plate with many holes on the end of the exhaust pipe.
I have seen something like this many years ago and was impressed by the quietness of the exhaust.
Have you considered a plate that covers the end of the muffler with many holes drilled in it for the exhaust.
It seems like the frequency and intensity is based on the diameter of the pipe and the force of the exhaust, and the exit holes..
A comparison might be if you blow air over a 22 bullet shell, the freq will be high, and if you blow air over a shotgun shell, it will be lower.
It will not take but a little bit of effort to take, say a 2 in pipe and increase it to about 4 in, and cover it with a plate, and then drill out enough metal to equal the area of the 2 in pipe to have same back pressure.
If the pipe is 2 in, then the area of the pipe outlet is 3.14 in , so if you increased the pipe to 4 in, and covered it with a plate, and then drilled 64 , 1/4 holes, that would give you the same opening, and change the frequency and loudness.
You might double check my math, because you would want the same back pressure and a lower sound.
Maybe something like this also. or the second picture