Muffler mod pictures

[MG2186]

I've used quite a few of those also and i like them also


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[Mag Craft]

Here is another muff mod. It is a Dolmar 119 which was a predecessor to the 120. Over under double barrel.

 

[Mag Craft]

Here is Dolmar 111i with just a single pipe that I squared up some just to do something different.

 

[Moparmyway]

That's tig with 3/32" filler. I had to just drag it in a straight line to keep the puddle connected. These thinner muffler deflectors are harder to weld. I liked the 16 gauge ones.

Thought you did the old spot-stitch with mig, came out nice !!!

Especially trying to get through the screen gap, these thin ones just disappear before they puddle. Its like too much filler is the right amount

 

[Brewz]

Stihl 039 dual port muffler mod.
Start with aftermarket muffler. Drilled face and baffle but front euro cover didn't flow well
I modified the front cover off the original muffler and fitted it to the side and it works a treat.

 

[drf256]

Thought you did the old spot-stitch with mig, came out nice !!!

Especially trying to get through the screen gap, these thin ones just disappear before they puddle. Its like too much filler is the right amount

I'm finding these super difficult to get a nice bead on. My welds come out quite poorly on them.

I'm not sure if it is embedded impurities in the base metal or not. I can get them to seal, but they just don't come out like my other beads.

 

[Brewz]

I believe grinders were invented by Electricians like myself so they could fix their welding

 

[drf256]

"Grinders and paint make bad welders what they ain't"

 

[Moparmyway]

I'm finding these super difficult to get a nice bead on. My welds come out quite poorly on them.

I'm not sure if it is embedded impurities in the base metal or not. I can get them to seal, but they just don't come out like my other beads.

I see lots of "exploding" happening with them, even after cleaning the metal with a whiz-wheel
I think you nailed it, with impurities. Rust and oil dont mix well when welding

I had some blow through on my last one, I think Red is making the deflectors thinner, and will run a pulse on my next one, hopefully this weekend.

I seen your mod to Mustang Mikes 044/046 cover, that looked very nice.

 

[drf256]

Thanks Mopar.

Mikes mufflers were virgin material. Exactly.

I plan on trying Jody Collier's rule of 33 pulse on my next muffler project. I use an inverter, so I can pulse up to 999 times a second.

 

[Brewz]

Thats why I took the time to learn to weld properly.
For a leco, I can stick mig tig and oxy weld, brais, silver solder, use plasma, oxy cut etc.

Handy skils

Exploding welds will be impurities in the metal for sure

 

[Moparmyway]

Thanks Mopar.

Mikes mufflers were virgin material. Exactly.

I plan on trying Jody Collier's rule of 33 pulse on my next muffler project. I use an inverter, so I can pulse up to 999 times a second.

I am stuck in the darker ages, just before inverters were gaining popularity, I grabbed my 350LX.
I can only go 10 pulses per second, but I was thinking of trying 1.5 seconds of full petal, then 1/2 second at 60% to start with.

 

[mdavlee]

Thought you did the old spot-stitch with mig, came out nice !!!

Especially trying to get through the screen gap, these thin ones just disappear before they puddle. Its like too much filler is the right amount

I put a screwdriver under it and tapped the edge down with a hammer. Welded it up and then put a screen and took a round punch and tapped the edge at the front down to crimp the screen in place.

 

[drf256]

You already know that Tig is 90% Indian and 10% arrow.

I bet you'll be just fine.

After I learned a bit, I settled down to using traditional tranny machine settings for everything. When you don't know what you're doing, you think it's the better machine that makes the better welds.

Hood time makes the better welds, an you have that already.

 

[rattler]

 

[drf256]

I use 60Hz, 65% EN and no pulse for aluminum. Sound familiar?

Everyone recommends 100Hz. I learned on a Syncrowave 250. I still like the settings.

 

[rattler]

 

[Moparmyway]

I use 60Hz, 65% EN and no pulse for aluminum. Sound familiar?

Everyone recommends 100Hz. I learned on a Syncrowave 250. I still like the settings.

60hz for the hf start ?
Thats the only frequency I can controll on mine other than the pulser

68% EN is max penetration on mine and thats at setting 10
Setting 3 is 50/50
I usually roll the knob close to #5 for aluminum............... about 55% EN

I've seen the same model welder have different settings in 2 different places

 

[czar800]

Hands down the double barrel guys win!

 

[Mag Craft]

I use 60Hz, 65% EN and no pulse for aluminum. Sound familiar?

Everyone recommends 100Hz. I learned on a Syncrowave 250. I still like the settings.

A Syncrowave 250 is what I have and still use. It is a good machine.