Let's Start a Muff Mod Thread

[Homelite410]

So I guess my 180 amp MIG with .035" wire isn't going to work!

180....... I'm jealous I only have a 140 Hobart but I do really like it for light stuff. 1/4" and under. Big stuff I have a copper wound arc welder for!

 

[The Ripper]

So I guess my 180 amp MIG with .035" wire isn't going to work!

get the wire size down to .023 and turn the amps WAY DOWN. I mig weld with a 110 and have no problems doing my muffler mods.

 

[Moparmyway]

So I guess my 180 amp MIG with .035" wire isn't going to work!

Yes, it will if you switch over to 0.023" wire and turn it down a little. My Miller 250 does just fine on mufflers with 0.023" wire

 

[Heilman181]

Yes, it will if you switch over to 0.023" wire and turn it down a little. My Miller 250 does just fine on mufflers with 0.023" wire

Wouldn't I have to change the shield inside the cable and get smaller tips before I can run .023" through it?

 

[A.E. Metal Werx]

Just tips and make sure your feeder rollers will go that small. No one said it couldn't be done. I know one thing for sure is I'm not going to stock .023 wire and switch over Jair for a muffler job when I can silver solder one In 5 or so min with very little effort. What ever floats your boat. If your welding stainless to your carbon steel muffler you "should" run 309 wire. Another reason silver solder is so friendly, quick and cheap to use.

 

[Lignator]

anyone got a step by step on how best to silver solder?

 

[A.E. Metal Werx]

You should be able to get the idea from these

 

[SquareFile]

Have your metals very clean. Use flux. You can use a map gas torch if you don't have oxy acetaline torch. Heat the materials and then puts the silver braze in the flame. The braze will follow the heat and only stick where flux is present.

 

[Heilman181]

Just tips and make sure your feeder rollers will go that small. No one said it couldn't be done. I know one thing for sure is I'm not going to stock .023 wire and switch over Jair for a muffler job when I can silver solder one In 5 or so min with very little effort. What ever floats your boat. If your welding stainless to your carbon steel muffler you "should" run 309 wire. Another reason silver solder is so friendly, quick and cheap to use.

I have no desire to change over my current setup just to try to weld one muffler mod. I was more curious than anything. I will wait until I get some silver brazing rods.

 

[Heilman181]

Have your metals very clean. Use flux. You can use a map gas torch if you don't have oxy acetaline torch. Heat the materials and then puts the silver braze in the flame. The braze will follow the heat and only stick where flux is present.

Is flux, flux? Are there different kinds or will any flux do the job?

 

[Lignator]

Great thanks! I have some silver solder wire and some black high temp flux I purchased from a welding shop. I had plans of brazing a lugged bicycle frame but never got around to it.

 

[Heilman181]

Is flux, flux? Are there different kinds or will any flux do the job?

So I stopped by Northern Tool and picked up a container of Hobart Brazing Flux. It is a powder type that you dip the brazing rod into before brazing.

Is this stuff okay for a muffler mod?

 

[SquareFile]

I'm not familiar with that type but it should work. I use a flux called Borax. Don't over complicate it, its not that difficult and its just a muffler. Clean materials is the key.

 

[sachsmo]

So I guess my 180 amp MIG with .035" wire isn't going to work!

Depends on how 'careful you are.

Think that 359 I did was with .040

 

[sachsmo]

Is flux, flux? Are there different kinds or will any flux do the job?

No!

get the 'black' stuff.

It has silver content, the black works so much better than the white.

No doubt there's better places to buy the silver wire, probably find your best price on the net?

 

[Heilman181]

No!

get the 'black' stuff.

It has silver content, the black works so much better than the white.

No doubt there's better places to buy the silver wire, probably find your best price on the net?

Where would one find the black stuff? Any stores regularly stock it?

 

[KenJax Tree]

On my 550xp i just opened up everything under the deflector and was done in 10 minutes start to finish.


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[Big_Wood]

On my 550xp i just opened up everything under the deflector and was done in 10 minutes start to finish.


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What kind of gains did you see on your 550? I got one coming but i'm kinda leaning towards it being my only quiet saw so may leave it bone stock. Might get bored on a snowy day though.

 

[Heilman181]

No!

get the 'black' stuff.

It has silver content, the black works so much better than the white.

No doubt there's better places to buy the silver wire, probably find your best price on the net?

From what I was reading online the black flux is very corrosive and it is recommended to wash it with detergent and vinegar afterwards.......

Is there any truth to this?

 

[KenJax Tree]

What kind of gains did you see on your 550? I got one coming but i'm kinda leaning towards it being my only quiet saw so may leave it bone stock. Might get bored on a snowy day though.

The gains were very noticeable it made a big difference. It didn't get that much louder because i left the baffles inside alone. Its definitely worth the 10 minutes though. On my 562 i cut the baffle inside and its really loud.


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