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Just Have a Little Faith!
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Discussion Starter · #1 ·
I needed a muffler for my garden tractor and got this idea;

I used an empty propane bottle and a piece of 1 1/2" exhaust pipe. I used a 1 1/2" hole saw to make a hole in each end of the bottle. The pipe was cross drilled with 1/2 holes (sorry no picture!) and then slipped through the bottle and welded.
 

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Sounds like a good idea, how's it work?

Mike
 

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My Orange Jane Deere
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How does one drill holes in a used gas cylinder? With out ending up in the next county?...:praying:...
You do it in the next county to start with, that way you are all ready there. Do I have to tell you guys everything. :sidelaugh:sidelaugh:sidelaugh
 

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I'd like 2 of those for my GX's Kawi! It ought to sound good w/½" holes in the core! Usually they're around a 1/4 or less... Do they still call 'em "Hollywood Mufflers"?:ROF

Edit: You can also make a good core by hacksawing "slits" across the pipe, works just as good as holes.
 

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How does one drill holes in a used gas cylinder? With out ending up in the next county?...:praying:...
They have schrader valves -- like tire valve cores. Just remove the primary one with a valve remover thingy (or a flat screwdriver with a slot cut in the middle of it) and fill with water. Most people would suggest filling it with air, but then that would be mixing the propane with an oxidizer and making the tank explosive. Thus, from a worry wart perspective, I suggest water.
 

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Yes, water or an inert gas like nitrogen. Once it's been filled with water all the combustible gas will have been displaced and it's safe to cut or drill on.

Mike
 

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Just Have a Little Faith!
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Discussion Starter · #10 ·
>BOOM<

You people worry too much. You've spent too much time around OSHA.

Anywho, I put the muffler on after painting it. It's louder than a pancake but quieter than a straight pipe. I believe putting a baffle half way down the pipe would help. Maybe a welch plug could be inserted.

Another thought for those wanting to make one of these. They make these bottles in other sizes. There is a bigger dia. bottle that is used for Propane and Argon.
 

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What about tearing open an old muffler and use it's guts.
 

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I once made one of these for a "c" Allis that I had. Right in the center 5" of the through pipe, I drilled 5/16" holes ( a bunch of them), then took an alignment punch inserted in the holes to bend or deform them so the exhaust would 'catch' and be diverted into the cannister which I stuffed with some fiberglass insulation. Worked and sounded fantastic. Was still on there when I sold the tractor 17 years later.
 

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If you had instead cut the pipe in two after drilling the holes, and inserted them at an angle so they were roughly parallel to each other, it would sound a bit less "barky", as the exhaust pulses would travel a more roundabout way through the can.
You could also use a propane bottle from a camp lantern, such as a Coleman, and have a larger diameter too. It would have enough diameter that you could offset the large holes on either end, and make the two pieces of pipe actually parallel. Easy to suggest from here at my keyboard.
tom
 

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I once made one of these for a "c" Allis that I had. Right in the center 5" of the through pipe, I drilled 5/16" holes ( a bunch of them), then took an alignment punch inserted in the holes to bend or deform them so the exhaust would 'catch' and be diverted into the cannister which I stuffed with some fiberglass insulation. Worked and sounded fantastic. Was still on there when I sold the tractor 17 years later.
I was going to suggest steel wool. How did it sound with the muffler? With "1" being no muffler, 5 a stock muffler and "10" being a quiet Craftsman.

Now, I'm thinking of making my own muffler. It's just finding the right size can. Right now, I just have 2 straight pipes on my early 80's Murray garden tractor and they are pretty loud.
Hmmmmm.....Del Monte or Libby's? :sidelaugh

Bob

Bob
 

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Homemade MUFFLER, for small engine - see following links:

http://www.youtube.com/watch?v=JUH5rIYgwt0
http://www.diygokarts.com/vb/showthread.php?t=6887


Here is a good eHow link:


http://www.ehow.com/way_6301320_homemade-atv-muffler.html

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Beaumont { :>)) www.petperfectexpress.com
Golden Rule - "he who has the gold, makes the rule"
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1992 JD 318 original paint w/484 hr. on P218g Onan & #49 snow blower / 1998 JD GT262 w/brand new Kawasaki OHV & 48" rebuilt deck
http://www.mytractorforum.com/showthread.php?t=135838
 

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SleazyRider, the muffler was about a 5. My neighbor around the corner ever told me that when he first heard me start it up after installation that he told his wife,"someone around here just started up an Allis C. It even had the Allis 'pop' when throttling down. Love that sound. Was brought up on Allis' in my early days (1950's)
 
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