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Old 06-20-2008, 06:31 PM   #1
Brad75
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Unhappy Ways to quiet down a generator???

I am wanting to quiet down a generator for camping. Wife wants to go camping and told her the only way I would do it is to take a A/C with us for the tents. I have a generator but it is really noisey. What is a good way to quiet it down?? Anybody ever done this!!

Thanks,
Brad
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Old 06-20-2008, 06:38 PM   #2
WoJo
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Long extension cords and put it over the hill.

Dig a hole and put the generator in the hole.

Park the truck away from camp and put the generator on the other side of the truck with anything else that can deflect the sound.
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Old 06-20-2008, 06:39 PM   #3
Luck_of_the_Draw
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You can make a sound barrier out of some plywood and face the exhaust away.

Add a larger muffler.
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Old 06-20-2008, 06:41 PM   #4
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2 or 4 stroke? I have had some luck retrofitting a small quiet car muffler to limit exhaust noise but the engine noise on a 2 stroke is substantial and not quieted any by a muffler.
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Old 06-20-2008, 06:48 PM   #5
Bily Lovec
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I put a small car muffler on a 4 stroke genny, made a huge difference
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Old 06-20-2008, 06:49 PM   #6
cosmiccowboy
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We had a hunting camp generator that we built a plywood/shingle shroud around (still accessible for oil, gas, etc) and then built a 1/2" pipe adaptor from the exhaust tapping up about 15' off the ground and screwed the muffler back into the adapter...probably cut the noise to at least 1/3 of the previous level but not really practical for camping.

I googled "quiet generator mufflers" and found this along with some other links...

http://www.jackssmallengines.com/strapmain.cfm
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Old 06-20-2008, 06:52 PM   #7
Tmag
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We built a 3 sided box with a roof to cover ours. Open side and exhaust facing away from you. Also, used a 100' heavy extension cord to carry the load. Worked real well year after year.
Of course you can buy a Honda and you'll have quiet.
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Old 06-20-2008, 06:56 PM   #8
Brad75
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This is a 4 stroke engine and I was thinking about the shroud and the plywood ideas but was wanting to see what else was out there.

Thanks guys!!
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Old 06-20-2008, 07:26 PM   #9
Bill in San Jose
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Somehow adapt the output of your current muffler to the input of a larger one. Here's a link to building a "Swiss muffler" to quiet aircraft, maybe it would work too?

http://www.piteraq.dk/flight/muffler.html
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Old 06-20-2008, 08:23 PM   #10
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I saw one once that had an automobile muffler attached with a long pipe running straight up in the air, higher than the roof on the motor home and it was quiet.
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Old 06-20-2008, 08:40 PM   #11
Landrover
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Good thread!
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Old 06-20-2008, 08:52 PM   #12
Jaspro
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Stay in a motel.
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Old 06-20-2008, 09:11 PM   #13
Lip
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I can't believe nobody has stated the obvious yet:

Turn it Off!
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Old 06-20-2008, 09:16 PM   #14
Dahmer
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Quote:
Originally Posted by Brad75 View Post
This is a 4 stroke engine and I was thinking about the shroud and the plywood ideas but was wanting to see what else was out there.

Thanks guys!!

Brad PM me the dimensions of your generator and I will build you a muffling box to put it in this week at work. I'll bring it out to you in a couple weeks and you will be good to go.
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Old 06-20-2008, 09:33 PM   #15
kfd82
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http://www.kooleraire.com/kooleraire25.htm

portable ac unit. Fits on an icechest. Just need to figure out how to plug in the 12v cig adapter to something. (Park close!)
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Old 06-20-2008, 09:36 PM   #16
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Sorry double post.

Last edited by kfd82; 06-20-2008 at 09:39 PM.. Reason: posted twice
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Old 06-20-2008, 09:40 PM   #17
kfd82
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Just read on that site that one of those portable jump starters will rin it for 27 hours.

So if you already have one of those you are good to go!
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Old 06-20-2008, 10:33 PM   #18
quicksilver437
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look at the honda genarators there really quiet you can have a normal conversation right buy it without yelling, or you can build like a wooden box for it. When you build it just leave the font of it off so once your finish you sound just has the top the back and the sides and have the front missing.
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Old 06-21-2008, 12:23 AM   #19
wes122984
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check out Q link
quiet and designed after the hondas
i picked up a new one for 3500w for 275 reg price is 550
some guy sells them new with electric start that cheap on craigslist
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Old 06-21-2008, 03:51 AM   #20
CastAndBlast
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I agree with the long extension cord idea. It works.

Last edited by CastAndBlast; 06-21-2008 at 03:54 AM..
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Old 06-21-2008, 06:33 AM   #21
keep
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Quote:
Originally Posted by Brad75 View Post
This is a 4 stroke engine and I was thinking about the shroud and the plywood ideas but was wanting to see what else was out there.

Thanks guys!!
The shroud works well but instead of plywood I have used the insulation board (not real sure of the name) I had 3 sides and a top. Plus it's light wieght.
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Old 06-21-2008, 07:44 AM   #22
bboswell
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I tried one of the "super quite" ATV mufflers.............DID NOT work. 1st it didn't make much difference and most importantly it created so much back pressure that the blow by oil clogged the air filter and killed the generator at 3am.

I might try the car muffler though.
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Old 06-21-2008, 09:00 AM   #23
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If you build a box to fit around it, leave at least a foot from the generator to the walls for air flow. You don't want to overheat the generator, that would be expensive.
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Old 06-21-2008, 09:04 AM   #24
OS_BRANDON
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honda..
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Old 06-21-2008, 08:10 PM   #25
cj7zrcool
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Quote:
Originally Posted by Dahmer View Post
Brad PM me the dimensions of your generator and I will build you a muffling box to put it in this week at work. I'll bring it out to you in a couple weeks and you will be good to go.
Nice gesture.
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Old 06-21-2008, 09:41 PM   #26
pazthru
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I was sucessful making one of the three sided covers(KEITH) using A/C duct board (KEEP).
I cut it and taped the parts so it would fold flat with metalic tape "hinges"and pinned the unit together with framing nails. When finished with it , I pull the nails out, fold it flat and stow it.
This coupled with a 100' extention cord (CASTANDBLAST)made for a quiet , lightweight, compact storable cover.
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