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Old 01-16-2016, 09:02 PM   #1
johnny reb
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Default muffler cleaning

how often should you burn your muffler out and what is the best way? a man told me he cut a hole in the muffler and get it hot with a torch and hit it with compressed air and it cleared it out. others show they just throw it on a bonfire and wallah it cleans itself.
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Old 01-16-2016, 10:54 PM   #2
backyard
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Default Re: muffler cleaning

I suppose a torch can work but you will have to watch how much heat you put into one place or it will burn a hole in the muffler. The torch is going to heat the outside much hotter than the pipes on the inside and seems ineffecient to me so a fire would be best in my opinion.
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Old 01-17-2016, 08:21 PM   #3
johnny reb
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Default Re: muffler cleaning

no you cut a accesss hole in the muffler and heat the baffle till cherry hot and add compressed air to clean it then put the piece back on and weld it up. i may chop one to try it the exhaust tube is tiny.
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Old 01-17-2016, 08:30 PM   #4
73eldo
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Default Re: muffler cleaning

Someone in this forum recently took one apart for repair and posted some great pics. Thinking it was within the last 6 months. Its a fairly complex design.
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Old 01-18-2016, 12:38 AM   #5
backyard
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Default Re: muffler cleaning

My muffler (83 model) had fiberglass packing in it. Mine already had two 1" holes poked into the casing (by someone else) so I could see in it pretty good. If memory serves me well it was a 3 chamber design. Also the inlet for the muffler is a pipe that goes in a few inches that is capped off with 30 to 50 small holes in the side of the pipe for flow to the first chamber. I didnt like the looks of that so I took a hole saw and cut out the capped end for better flow. Yours may be of a different design but at least you have an idea what to look for.
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Old 01-18-2016, 06:17 AM   #6
johnny reb
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Default Re: muffler cleaning

going for number 9 today i can chop a hole in the side of one and see what happens i will do pics when i get a chance
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Old 02-11-2016, 09:48 PM   #7
johnny reb
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Default Re: muffler cleaning

i cut one open rewelded the broken parts and closed it up here is the flow in a hd muffler that looks like this
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File Type: png muffler comp.png (206.4 KB, 0 views)
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