Show off your muffler mods

[Jscb1b]

I did the muffler mod that is shown in my earlier post. The saw is painful to run without ear protection. My neighbors HATE me!

 

[Stump Shot]

Makita 7900
Port matched




Stainless steel outlet with screen

 

[Stefanseiner]

muffler for a Komatsu Zenoah clone saw
- cut in into two parts to empty it inside
- two 16mm outlet ports
but I need more exercises on welding thin metal, normally I do 10mm or so on my tractor

 

[B440]

muffler for a Komatsu Zenoah clone saw
- cut in into two parts to empty it inside
- two 16mm outlet ports
but I need more exercises on welding thin metal, normally I do 10mm or so on my tractor

What does the inside of that muffler look like? I thought they were pretty empty to begin with?

 

[Stefanseiner]

some (EU?) models do have an catalysator inside which causes a lot of counter pressure AND heat,
and all models have a diffusor inside

looks like that. Some have a few big holes like ths one

some have a few smaller holes

 

[Canadian farm boy]

MS500i

I take the guts out, cut the stock deflector mostly off. Open the stock outlet as big as I can without getting into the screen holder and then weld on a new bigger deflector.

 

[whitesnake]

Makita 7900
Port matched


View attachment 402538

Stainless steel outlet with screen
View attachment 402540

That a wcs outlet?

 

[Stump Shot]

That a wcs outlet?

No, but it is the same size as the WCS small outlet(288xp).

https://eganperformancesaws.com/collections/all?page=4
Edit: This one made by Egan Performance in Stainless Steel. Mild steel also available.

 

[whitesnake]

No, but it is the same size as the WCS small outlet(288xp).

https://eganperformancesaws.com/collections/all?page=4
Edit: This one made by Egan Performance in Stainless Steel. Mild steel also available.

Oh nice, I never noticed those before. You just using rivnuts?

 

[Stump Shot]

Oh nice, I never noticed those before. You just using rivnuts?

Yes, especially on a closed can like that.

 

[whitesnake]

Yes, especially on a closed can like that.

Where are you sourcing your rivnuts and screws? I can’t imagine they’re all created equal. I see a ton of cheap ones all over Amazon.

 

[Stump Shot]

Where are you sourcing your rivnuts and screws? I can’t imagine they’re all created equal. I see a ton of cheap ones all over Amazon.

I can recall ordering a bunch of each so as I wouldn't run out some years ago, the exact vendor eludes me. Places I go to most in the past were/are Fastenal, McMaster Carr and Grainger if that helps.

 

[whitesnake]

I can recall ordering a bunch of each so as I wouldn't run out some years ago, the exact vendor eludes me. Places I go to most in the past were/are Fastenal, McMaster Carr and Grainger if that helps.

So not Amazon lol. Stuff like that I’d prefer to spend a couple dollars and get higher quality if possible. Last thing I want is something breaking off inside the muffler.

 

[Canadian farm boy]

372xp

 

[Stump Shot]

So not Amazon lol. Stuff like that I’d prefer to spend a couple dollars and get higher quality if possible. Last thing I want is something breaking off inside the muffler.

I've ordered some quality made bolts from an eBay vendor a few times before, you just need to check over what they are selling carefully before buying.

 

[BuffaloBill]

Here’s an MS200T clone I’ve been playing with. Happened to have some 3/8” OD SS tubing so made a triple outlet.

 

[pbillyi69]

Here’s an MS200T clone I’ve been playing with. Happened to have some 3/8” OD SS tubing so made a triple outlet.
View attachment 404324

is it super loud?

 

[ErnieG]

Makita 7900
Port matched


View attachment 402538

Stainless steel outlet with screen
View attachment 402540

Where did you get the stainless defector?

Ernie

 

[Squareground3691]

Where did you get the stainless defector?

Ernie

Hey Ernie , https://eganperformancesaws.com/

 

[BuffaloBill]

is it super loud?

Well I never ran this saw stock, so can’t compare it to that. I did machined it and ported it also. Compression, I expect, is quite high. Only ran it this morning unloaded. I don’t have a bar for it yet. But yes, it did seem to make a lot sound for its size!