JLawrence08648, good reminder about the apps. Though I'd trust them for relative measurements between different engines that a person has, using the same phone, at the same distance. I'm not sure I'd trust the measurements as being comparable between different users, and definitely not between different phones. The microphones on the different phones may have different sensitivities, etc.
My Tecumseh L-head 8hp was "pretty loud". My Tecumseh OHV 10hp is also "pretty loud". I wear hearing protection when I clear, but I usually do when running a small engine. My little Honda suitcase-style generator is probably my only small engine that doesn't justify hearing protection when you're near it.
They copied the Honda style multibaffle muffler design. New powersport laws mean you have to make new equipment quieter than the old stuff. I for one like a quieter machine. New snowmobiles are so much quieter than the old ones
Mine is loud enough to require both earplugs and some pretty quiet (NR 34) muffs. I'm pretty religious about protecting my hearing though. It would be interesting to find a quieter muffler setup. Not that much attention seems to be paid to making these things quiet, even though it would make the job a bit easier without so much noise.
Plus I could get started earlier in the morning if it was quiet.
My new hss928 is so much quieter than my old craftsman machine. I really like that it's this quiet. When i go out early to clear the wife says she can hear it inside but it's not offensive like my neighbors is.
It's the same for generators. i have a rattle box screamer that I avoid using because the racket it makes. The honda my friend has can run right next to you and you don't have to raise your voice.
I started wearing ear plugs after just 2 uses with my Yamaha, albeit older model, as I noticed a significant impact on my hearing despite being quieter than a lot of machines out there. After 2-3hrs each time it certainly added up. It's been a week and I'm still noticing a slight loss. I'm not sure why I went without it as I usually put on hearing protection when using a hammer or impact driver as even short bursts of noise like that bothers me.
I wonder if cutting open the muffler to pack it with something or install more baffles would make a significant difference without sucking anything into the engine.
As for the Decibel apps, they are pretty accurate. I had one on my iPhone several years ago and used it along side an actual high end meter and the results were the same. The issue is the self calibration options in them so you could make it more sensitive or change the range slightly but with nothing to compare it to you won't know if it's accurate or not. As said, it depends on the phone being used as well, dirt in the mic, if there's a case over it, etc. Still, it will get you in the ballpark of the actual noise level and at no cost to you except make you aware you should be using hearing protection.
I am looking to repower my MTD 24 with a Tecumseh 5.5 hp with a 6.5 hp and would like to get some input. I'll have to put a 3/4 to 7/8 inch shaft bushing on the motor output shaft. The Tec has been pretty reliable, starts easily and will throw a foot of average weight snow 12 to 15 ft, but...
i went to the dealer this morning to pick up an original toro key and a knob for the handle for the ccr3650r i just got. from there i went and got a hair cut, haveing the allergic reaction to onions just before christmas ment i couldn't get a hair cut either. once back home i made some lunch...
I've read that Husqvarna has a cast iron impeller which is heavier than a "typical" impeller.
I think I read on a few instances, but I also spoke to a small engines mechanic at a Husqvarna dealer (He is a friend of mine) about that and he says that the heavier impeller would give it a better...
Looking for suggestions on a lift/platform that I can roll snowblowers or walk behind lawn mowers onto which would have the ability to lift/raise up so that I can perform maintenance tasks on them. Any thoughts?