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Lawn Tractors - Do They Have To Be So Loud?


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#16 WHdbJD OFFLINE  

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Posted March 23, 2014 - 08:30 PM

Yeah, they bark with a straight pipe..

 

IMG_0136.JPG


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#17 A.C.T. OFFLINE  

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Posted March 23, 2014 - 10:46 PM

gallery_11085_360_864479.jpg GEDC0495.JPG

 

I also have a couple loud ones.


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#18 chuckt OFFLINE  

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Posted March 24, 2014 - 06:07 AM

So how to guiet them down? Is there a better after-market muffler?

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#19 toppop52 ONLINE  

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Posted March 24, 2014 - 06:49 AM

My Onan 18 horse B48M was pretty quiet with the original muffler, but at replacement time $240 vs $38 for a pair of screw ons, well...


Edited by toppop52, March 24, 2014 - 06:59 AM.

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#20 trowel OFFLINE  

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Posted March 24, 2014 - 07:00 AM

The inherited deficiency of most air cooled engines makes them noisy regardless, as the engine wears out it becomes more louder, enclosing them leads to overheating and a range of other problems so some heavy thought has to be put behind it.

 

This topic has come up multiple times over the years and many methods tried. The exhaust note can be reduced if creativity, tools and a welder is used to replace the factory muffler with a good quality muffler.

 

To give you a head start if you are willing, Nelson mufflers has always be resounding in quality, longivity, damping 80 to 90 % of the exhaust note (depending on the model used) and come in a wide range of sizes and shapes. The trouble with adding another mufflers is it robs the engine of hp and adds more backpressure unless specifically deigned to match the engine from the engineers, too much backpressure will damage the valves and wear out the piston rings fast, a free flowing muffler or a large muffler would be needed but then the problem of finding a place to mount it on the tractor has had many on the brink of insanity trying to figure out how to make it work.

 

As much as i enjoy open pipes for puttering around or short loud runs after a few hours of being right behind the pipe at 3600 rpm while mowing the lawn or snow throwing the percussion wears on me, i truly enjoy the exhaust blurp of the older engine mufflers (many doe not have internal baffles) and the mufflers i have built usually emphasises on the exhaust note without the sharp crackling and ear plugs are used at the higher rpms so the question more or less is lost on me.

 

I hope this help you a little.


Edited by trowel, March 24, 2014 - 07:06 AM.

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#21 chuckt OFFLINE  

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Posted March 25, 2014 - 06:20 AM

Oh well. Ear plugs for me.
I have tried the radio-in-the-earphones idea and found that they slip and the antenna is directional. I'm to lazy to 'gin-up a play list on a player.

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#22 ENafziger OFFLINE  

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Posted April 21, 2014 - 02:48 PM

My Onan 18 horse B48M was pretty quiet with the original muffler, but at replacement time $240 vs $38 for a pair of screw ons, well...

 

Oh, I get it...so THAT's why my tractor is so loud, and looks like it has two big silver eyeballs! :D

 

--Eric


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#23 toppop52 ONLINE  

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Posted April 21, 2014 - 07:23 PM

Oh, I get it...so THAT's why my tractor is so loud, and looks like it has two big silver eyeballs! :D
 
--Eric


Ju got it homey!
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#24 Jack ONLINE  

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Posted April 21, 2014 - 07:58 PM

attachicon.gif6991360009_large.jpg Yes
 
attachicon.gifuntitled exhaust.png But this could get someone killed (driver)


Ok,lol...not to be out done..


dumb vette.jpg
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#25 toppop52 ONLINE  

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Posted April 22, 2014 - 06:56 AM

Some of these people were in line for brains, they thought God said rains, and they said, no thanks we have enough already! :D



#26 LilysDad ONLINE  

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Posted April 22, 2014 - 07:29 AM

I use the Nelson muffler made for the 8N Ford. I really wish it was a few inches shorter in the body though.

Has anyone tried a shorty muffler off of a Harley?


Edited by LilysDad, April 22, 2014 - 07:30 AM.





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