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Re: [Shop-talk] Mufflers

To: shop-talk@autox.team.net
Subject: Re: [Shop-talk] Mufflers
From: Scott <scott.hall.personal@gmail.com>
Date: Sun, 18 Dec 2011 10:41:29 -0500
I've seen all sorts of mufflers fangled on to generators.  Almost all of 
them looked like wither J.C. Whitney/Autozone/Harbor Freight jobs, or 
else re-cycled motorcycle exhausts.  I don't know what they did to the 
performance of the generator motor, but the generator(s) continued to 
produce power and they were quiet(er).

Just as much bang-for-the-buck is building an enclosure for it--the 
exhaust is a noise source, but so are the other moving parts.  Even a 
cardboard box can work wonders, so putting some time and thought and 
actual materiel into the job (and a muffler) can make even the loudest 
generator very much quieter.  Just remember to provision for air flow.

On 12/18/2011 9:54 AM, John Innis wrote:
> With a little detective work, you should be able to find a quieter exhaust
> system that will bolt right up to that motor.  I would start with a local
> lawn and garden shop, take them the model and spec number off the motor and
> tell them what you want to do.  Ask if they know of other generators that
> used the same series of engine, especially ones that went into RV's.  You
> might also look at some of the slip on systems for ATV's and UTV's as these
> tend to be pretty quiet.  As a last resort you might try a muffler off a
> gas powered golf cart.
>
> On Sun, Dec 18, 2011 at 8:07 AM,<eric@megageek.com>  wrote:
>
>> I asked this question before, but I think it got lost in the another
>> discussion.
>>
>> I have a very good generator for back up power.  The problem is that it is
>> pretty loud.
>>
>> Can I remove the exhaust it came with, and mod up a nice exhaust into a
>> small (or large) car muffler?  Since this is only a 12HP B&S motor, we
>> aren't talking tuned engines, so I'm guessing back pressure isn't
>> critical.
>>
>> Any ideas?  What would you do if you needed to quiet this system.
>>
>> Note, I don't need the portability of the unit, so if I had a BHE (Big
>> Honking Exhaust) sticking out of the cage, that is fine.
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