Show off your muffler mods

[Deets066]

That's all that guy will run is those quad ports

Pipes are used to direct flow, if going straight out the front, why not just drill a hole?

 

[HYPERSAWS]

Pipes are used to direct flow, if going straight out the front, why not just drill a hole?

They are about an inch and half long and that is how he likes them

 

[HYPERSAWS]

Pipes are used to direct flow, if going straight out the front, why not just drill a hole?

They are angled inward

 

[ADMO services]

On old transformer machines the HF stays on all the time, but it's such an insignificant amount of amps that it's pretty much negligible during welding. On newer inverter machines, they are smart enough to shut it off after the arc is establish.

I've welded chainsaw mufflers with both types and noticed no difference in any cleaning action.

Things that do matter are:
Surface prep, and don't forget your backside!
Minimum amp arc starts, 5 amps is almost too much on the edge of 20g sheet metal.
Proper gas coverage, remember that you probably should be back purging it... but ain't no one got time for that.
Using a gas lens over a collet. Even better are champagne cups or large cups with diffusers.
Pulse... if you have large runs.
Small diameter filler.

Back to it... 572XP muff mod, you can't get any taller than that!

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It was an old Lincoln sails gimmick perhaps but others did it as well having the ability to turn up the hf intensity in the intention to clean. Mine has this intensity adjustment. To me I can tell a difference when it’s all the way up. But like I’ve said my way is not the only way. And it’s an old welder thing saying it helps to clean. Does it? Who knows? But I thought it was worth talking about. And you for sure would be very aggravated trying to scratch start a muffler and getting ark burn marks on your surface you are trying to weld. All great points brought up by everyone. I wasn’t trying to argue so I must clear that up.

 

[ADMO services]

500i faceplateView attachment 220972working on my brazing skills thoughts? Helpful advice?

I can’t braze for s&@t but yours is looking good!

 

[ADMO services]

Mig is easy, especially if your running small wire. I use .023

Can you steady stream or do you have to tear drop?

 

[Deets066]

Can you steady stream or do you have to tear drop?

Depends on the muffler, the thicker ones are fine. The old Stihl mufflers seems like paper and you have to spot em.

 

[Outdoors]

I wouldn’t waste your time unless you get one with high frequency to clean the porosity that you will be drawing out from inside the muffler. If you’re already brazing them it makes a much cleaner looking joint. I tig mine and it comes out nice but you really have to have patience and let the high freq do it’s cleaning and just dab little at a time. Not saying you can’t do it wouldn’t high freq, just saying you will draw porosity through the metal and that will take some more tricks to remove and make it look nice. Like some thin stainless tie wire can draw porosity out but it’s another aggravating process to deal with. If your already doing quality brazing there’s nothing wrong with that at all!

Have you ever tried silver solder ? I question the durability of the solder.

 

[ADMO services]

I’ve not used silver solder but I have seen brazing break off a 1/2” grade 5 bolt that was brazed to cast iron

 

[ADMO services]

The bolt broke not the braze

 

[ADMO services]

I can say this about silver solder though. My grandfather made a stainless steel ring out of a bolt and soldered his flight wings on it when he was in the navy aboard the Uss Yorktown and he was wearing it when he was in the battle of coral sea and midway when it sank and he abandoned ship swimming miles around and sometimes through burning oil. He was a machinist and used his hands constantly. He wore it until he died 14 years ago and my dad now wears it still intact. And one day it will be mine then my sons. If it ever breaks off I’ll solder it back on since I’m positive it will hold through some abuse.

 

[StuntCockWelder]

Muff mods mfers


View attachment 220962

Nice muffer thingy

 

[huskihl]

Nice muffer thingy

#StuntcockGrinderAndPainter

 

[TreeLife]

Back to it... 572XP muff mod, you can't get any taller than that!

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That deflector is bad ass mister!!!

 

[StuntCockWelder]

#StuntcockGrinderAndPainter

 

[dahmer]

Can’t take credit for it, Mike Gott, @MG2186, does them. I think this is the 4th or 5th one he’s done for me.

 

[qurotro]

Did you guys ever worried about things fall through your big pipe and blow up the engine?

 

[ferris]

Really good question.
That is the reason I’m afraid of one big hole. So I make a lot small ones.

 

[Deets066]

Did you guys ever worried about things fall through your big pipe and blow up the engine?

Nope

 

[Deets066]

Really good question.
That is the reason I’m afraid of one big hole. So I make a lot small ones.

One big hole flows a lot more than a bunch of small ones