Posted by hubops on March 15, 2020, 5:40 pm
Wondering if anyone here is familar with this unit
< or similar small deisel units >
How noisy are they compared to gasoline ?
< both being 3600 rpm >
There's one coming up at a local auction sale.
Posted by ads on March 16, 2020, 3:56 am
On Sun, 15 Mar 2020 13:40:31 -0400, firstname.lastname@example.org wrote:
From some research I did a couple years ago,
the noise is comparable to a gas gen unless there is extra sound
deadening added. The life of an air-cooled diesel is several times
longer than the life of a similarly-sized gas engine but mostly
because they have to be built better to handle the higher compression.
Posted by hubops on March 16, 2020, 2:20 pm
On Sun, 15 Mar 2020 22:56:17 -0500, ads wrote:
Thanks. I'm not real keen to buy another noisy generator,
but I might visit the auction out of curiosity .. in case it sells
really cheap ..
Posted by Jim Wilkins on March 16, 2020, 5:56 pm
I built a fairly effective generator sound-reducing enclosure from 2'
x 4' fireproof acoustic ceiling tiles, rimmed with sheet metal |_|
strips to keep the edges from crumbling. It's assembled with thumb
screws and U spring nuts.
The side facing away from the street is open to let cooling air in and
the exhaust out. I tried muffling the exhaust with fiberglass pipe
insulation and found that most of the noise comes from the engine
Posted by hubops on March 16, 2020, 6:48 pm
On Mon, 16 Mar 2020 13:56:48 -0400, "Jim Wilkins"
Over the years, I've thought about a makeshift sound barrier -
- usually I talk myself out of it when I start to consider all the
fire/wind/rain/snow possibilities ...
I have heard that engine noise is a major factor -
- not just exhaust noise.