All-Terrain Lawn Tractor Forum

Like riding lawn tractors through mud, woods, rocks, and snow? Then this is the place for you! Share your ideas, Post your projects and more!
 
PortalHomeSearchRegisterLog inBuild-OffTop Tractor Challenge
Welcome to the All Terrain Lawn Tractor Forum! . . .
2020 Build-off Started, Look for entry instructions HERE! . . .
New Top Tractor Challenge and Build-Off Profile Buttons on the menu bar! . . .
2019 Build-Off Winners . . . 1-AllisKidD21 . . . 2-Offroad Mudmowers . . . 3-MightyRaze . . . Close vote, all were winners!

 

 Stock muffler teardown

Go down 
AuthorMessage
Angchor
Apprentice
Apprentice
Angchor

Age : 62
Join date : 2014-04-14
Posts : 491
Forum Rep : 2
Location : Index, Washington

Stock muffler teardown Empty
PostSubject: Stock muffler teardown   Stock muffler teardown Icon_minitimeThu Apr 24, 2014 1:50 pm

Has anyone ever carefully cut apart the stock factory muffler on something like the Kohler command?

I'm thinking that these mufflers do a pretty good job of making it quieter.

So taking one apart carefully, might reveal how we could make our own, only beefier, and quieter.

If I had an extra one, I might give it a try, but I don't want to take apart the one that is in use. It's more important right now to have the stock one on there. For me, this project would take the back burner to a whole slew of other things I have to do before I consider building a new exhaust.

Hoping someone else has carefully cut one apart, and can post some pictures.
Back to top Go down
willis923
Master
Master
willis923

Age : 23
Join date : 2013-04-10
Posts : 1408
Forum Rep : 0
Location : Galway NY

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeThu Apr 24, 2014 3:09 pm

as far as i know, its just mesh in there. also depends on what kind of muffler youre talking too though. usually we just straight pipe all our stuff. lol

_______________________________________________
-1974 bolens 1055 (Rolling Thunder)
-1989 Craftsman GT6000 (Blockhead)
-2004 Ford F-250 super duty FX4
-1999 Ford F-350 Superduty 4x4 7.3 Powerstroke


Lt wrote:
Feel free to try... Dont let anything but fear and common sense stop you. 


Stock muffler teardown Pbucket

Chat moderator

1st Lieutenant, Volunteer Firefighter, EMT-B, Galway Vol Fire co. Galway NY
Back to top Go down
craftsmancole
Skilled
Skilled
craftsmancole

Age : 20
Join date : 2013-04-05
Posts : 661
Forum Rep : 1
Location : New Smyrna Beach,Fl

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeThu Apr 24, 2014 3:45 pm

Later today I can cut one apart and post pictures if you want
Back to top Go down
Angchor
Apprentice
Apprentice
Angchor

Age : 62
Join date : 2014-04-14
Posts : 491
Forum Rep : 2
Location : Index, Washington

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeThu Apr 24, 2014 3:52 pm

@craftsmancole wrote:
Later today I can cut one apart and post pictures if you want

Excellent! Thank you!
Back to top Go down
Thunderdivine
Grand Master
Grand Master
Thunderdivine

Join date : 2012-12-21
Posts : 2099
Forum Rep : 2
Location : Norway, Europe

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeThu Apr 24, 2014 4:00 pm


_______________________________________________
*Thunderdivine*
My Custom Racing Mower Build
JD210R - Racing Mower, Sidebuild
My Vintage John Deere 110, 1967 model
"Imagination is more important than knowledge." - Albert Einstein
Back to top Go down
craftsmancole
Skilled
Skilled
craftsmancole

Age : 20
Join date : 2013-04-05
Posts : 661
Forum Rep : 1
Location : New Smyrna Beach,Fl

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeThu Apr 24, 2014 4:02 pm

@Thunderdivine wrote:
Google  Very Happy 

It's all about packing material and restriction without restricting really.

https://www.google.com/search?q=muffler+cutaway&source=lnms&tbm=isch&sa=X&ei=nmxZU57LM4Kp4ATy-4FI&ved=0CAYQ_AUoAQ&biw=1600&bih=772

Stock muffler teardown 0906or_06_z+corsa_performance_exaust+cross_section
Looks like I dont have to cut one apart now.
Back to top Go down
Angchor
Apprentice
Apprentice
Angchor

Age : 62
Join date : 2014-04-14
Posts : 491
Forum Rep : 2
Location : Index, Washington

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeThu Apr 24, 2014 4:10 pm

@craftsmancole wrote:
Looks like I dont have to cut one apart now.

That's not a standard muffler.

I'd like to see the guts of a standard, square muffler.

But I DON'T want you to feel like you "have" to cut one apart. Seriously. It's not like I'll use the information immediately. LOL
Back to top Go down
craftsmancole
Skilled
Skilled
craftsmancole

Age : 20
Join date : 2013-04-05
Posts : 661
Forum Rep : 1
Location : New Smyrna Beach,Fl

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeThu Apr 24, 2014 4:11 pm

@Angchor wrote:
@craftsmancole wrote:
Looks like I dont have to cut one apart now.

That's not a standard muffler.

I'd like to see the guts of a standard, square muffler.

But I DON'T want you to feel like you "have" to cut one apart. Seriously.
I can still cut one apart I have like 10 of them laying around that I don't need
Back to top Go down
mr.modified
Seasoned Veteran
Seasoned Veteran
mr.modified

Age : 30
Join date : 2013-11-02
Posts : 2649
Forum Rep : 109
Location : New Jersey USA

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeFri Apr 25, 2014 1:25 pm

I could cut some up too, I saved a bunch of stock stuff that I'll probably never use. Most mower mufflers just go through a baffle with some holes in it. The bigger ones might be a little more intricate.
Back to top Go down
untrusty huskee
Forum Newbie
Forum Newbie
untrusty huskee

Age : 22
Join date : 2014-01-04
Posts : 79
Forum Rep : 0
Location : Fulton IL

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeFri Apr 25, 2014 1:54 pm

i wander if this will help you
http://www.jackssmallengines.com/strapmod.cfm
Back to top Go down
Maine Mud Mower
Apprentice
Apprentice
Maine Mud Mower

Join date : 2013-01-05
Posts : 300
Forum Rep : 9

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeFri Apr 25, 2014 2:38 pm

Don't know about others but Briggs are like this
Stock muffler teardown Briggs10
Back to top Go down
http://www.Mudmower.com
B440
Apprentice
Apprentice
B440

Join date : 2014-01-22
Posts : 226
Forum Rep : 0
Location : Thompson, CT

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeFri Apr 25, 2014 2:51 pm

I'd like to see the inside of a mower muffler too.
Back to top Go down
mr.modified
Seasoned Veteran
Seasoned Veteran
mr.modified

Age : 30
Join date : 2013-11-02
Posts : 2649
Forum Rep : 109
Location : New Jersey USA

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeSat Apr 26, 2014 9:57 pm

Here is a muffler from a briggs 12.5 hp vertical shaft engine on a simplicity 4211.
Stock muffler teardown Img_3351

Two baffles and some off set tubes. Much more elaborate than I was expecting for a lawn mower. Pretty much like the inside of a car muffler.
Stock muffler teardown Img_3352

Basicly you just want to have places for the sound to be trapped and dissapate while allowing a relatively free flowing path for the exhaust gases.
Stock muffler teardown Img_3353
Back to top Go down
Ariens YT11
Skilled
Skilled
Ariens YT11

Age : 23
Join date : 2012-10-31
Posts : 743
Forum Rep : 0
Location : The Wyo-Braska Panhandle

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeSat Apr 26, 2014 10:03 pm

I took and ran my muffler backwards and removed a baffle and it sounds better but not straight piped. got some low tones at idle and somewhat loud at WOT.
Back to top Go down
http://pmwcm.forumotion.com/
Angchor
Apprentice
Apprentice
Angchor

Age : 62
Join date : 2014-04-14
Posts : 491
Forum Rep : 2
Location : Index, Washington

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeSat Apr 26, 2014 10:06 pm

@mr.modified wrote:
Two baffles and some off set tubes. Much more elaborate than I was expecting for a lawn mower. Pretty much like the inside of a car muffler.

Thank you, thank you!!!

That is exactly what I needed.

I kind of expected it to be a bit more complicated than most were thinking it would be. Because these little mufflers do a surprisingly good job of deadening the sound.

Now, when the time comes, I'll have some idea of how to go about copying them, but making it beefier, and possibly quieter.

Thanks again!
Back to top Go down
B440
Apprentice
Apprentice
B440

Join date : 2014-01-22
Posts : 226
Forum Rep : 0
Location : Thompson, CT

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeFri Jun 27, 2014 11:30 pm

This muffler off a Briggs 12.5hp flathead was loud like a straightpipe. Now I know why...
Stock muffler teardown IMG_1957_zps0234cdc1

Replaced it with one like mainemudmower drew on the first page.
Back to top Go down
ThatOneTeen
Apprentice
Apprentice
ThatOneTeen

Age : 21
Join date : 2014-05-22
Posts : 143
Forum Rep : 0
Location : Illinois

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeSat Jun 28, 2014 2:25 am

Does anyone know of a way I can quite my mower down? My neighbors will put up with all of my crazy toys aslong as they are quite. My mower is loud as heck and they dont like it  Very Happy 
Back to top Go down
Craftsman1998
Master
Master
Craftsman1998

Age : 22
Join date : 2013-10-30
Posts : 1066
Forum Rep : 0
Location : New jersey

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeSat Jun 28, 2014 8:45 am

i dont know if you can do this with mowers im sure you can but awhile back i had a atv. i would drive around A LOT and neighbors were getting a little annoyed so i got sos pads or steel wool whatever you want to call it stuffed it in the muffler. then took a window screen and a hose clamp stuck the window screen over the exhaust pipe and then stuck the hose clamp on the pipe to keep the steel wool from flying out it worked kept it very quiet and made my neighbors happy.
Back to top Go down
1997 Murray
Master
Master
1997 Murray

Age : 21
Join date : 2013-11-13
Posts : 1311
Forum Rep : 2
Location : NW USA

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeSat Jun 28, 2014 9:21 am

@Craftsman1998 wrote:
i dont know if you can do this with mowers im sure you can but awhile back i had a atv. i would drive around A LOT and neighbors were getting a little annoyed so i got sos pads or steel wool whatever you want to call it stuffed it in the muffler. then took a window screen and a hose clamp stuck the window screen over the exhaust pipe and then stuck the hose clamp on the pipe to keep the steel wool from flying out it worked kept it very quiet and made my neighbors happy.

that is a great idea! i was thinking the other day (a rare occurrence) and i realized that i need something I can drive without scaring the little kids. this looks like an easy solution!
Back to top Go down
ThatOneTeen
Apprentice
Apprentice
ThatOneTeen

Age : 21
Join date : 2014-05-22
Posts : 143
Forum Rep : 0
Location : Illinois

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeSat Jun 28, 2014 1:18 pm

@1997 Murray wrote:
@Craftsman1998 wrote:
i dont know if you can do this with mowers im sure you can but awhile back i had a atv. i would drive around A LOT and neighbors were getting a little annoyed so i got sos pads or steel wool whatever you want to call it stuffed it in the muffler. then took a window screen and a hose clamp stuck the window screen over the exhaust pipe and then stuck the hose clamp on the pipe to keep the steel wool from flying out it worked kept it very quiet and made my neighbors happy.

that is a great idea! i was thinking the other day (a rare occurrence) and i realized that i need something I can drive  without scaring the little kids. this looks like an easy solution!

I will have to go and pick up some steel wool and test that out oneday soon
Back to top Go down
T-Dub13
Skilled
Skilled
T-Dub13

Age : 50
Join date : 2013-12-06
Posts : 539
Forum Rep : 2
Location : Central MA

Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitimeTue Aug 26, 2014 11:31 am

The key to performance and quietness is volume.  Looking at the vast array of mufflers, you will notice that the larger the muffler, the quieter it generally will be.  And the better it will work for performance, being that it can deaden the sound with baffles, but not create excessive back pressure.  Larger passages = better flow.  

High Performance mufflers are sort of an oxymoron.  But Glass packs have always been the Go-To for hot rod boys since they're a straight through muffler that sounds good because the packing eliminates most of the high frequency noise.  They provide a good low rumble when putting around the yard, but they will also give up a good healthy bark at WOT.  This is what I'm running.

Angchor:  If you have room, a small automotive muffler would work great for what you're looking for.  You can grab a pile of 'em from any garage.  My garage has 3 of them right now in the scrap pile.  Too bad you're so far away lol!

edit: Also, with a larger volume muffler, you can have a much smaller outlet. Reason being that the pulses will smooth out inside the muffler and don't require a large opening to let out each pulse. So instead of emitting large abrupt pulses, the muffler will emit smaller smoother pulses, more like a whisper compared to a pop. Cool
Back to top Go down
Sponsored content




Stock muffler teardown Empty
PostSubject: Re: Stock muffler teardown   Stock muffler teardown Icon_minitime

Back to top Go down
 
Stock muffler teardown
Back to top 
Page 1 of 1

Permissions in this forum:You cannot reply to topics in this forum
All-Terrain Lawn Tractor Forum :: Technical Forum :: Chassis Modification :: Exhaust-
Jump to: