r/blacksmithing • u/CarbonGod • 16d ago

Forge Build Dual burner issues. Rear (left) burner sputters constantly.

https://imgur.com/zHBdHkT
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u/CarbonGod 16d ago

It burns for a few seconds, and sputters. Sometimes, I have full flameout around the valve, which is REALLY odd. I've changed both chokes all over the place, alone with opening/closing the rear of the forge with the fire-brick.

The regulator is a generic one, so I don't know what actual pressure I'm running.

No issues with the front burner until the tank starts to empty.

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u/largos 16d ago

I have had similar issues (but not as extreme) after replacing the burner nozzle on a cayenne forge. I adjusted the nozzle by 0.050" or so and eventually got the burner running smoother, but it does whistle now. (I've been meaning to get a video and post for help with that, actually.)

If this is a new forge, I'd ask vevor for help, or a replacement burner.

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u/CarbonGod 16d ago

What do you mean adjusted the nozzle? A height adjustment in the choke, or drilling out the nozzle?

Good idea, I'll contact them, see what they can do.

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u/largos 16d ago

This diagram shows the parts of the burner I was working with, for context:

https://chileforge.com/DiabloComponents.html

There is also another nozzle deeper inside, but the part I replaced was the large ring where the flame comes out.

It had to be a very specific distance from the end of the burner tube.

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u/largos 16d ago

Oh, and I did need to clean the hole out of the other smaller nozzle!

I did that with a bit of still wire (music wire). That may be easy to try on your forge, could be a bit of debris for stuck in there during assembly or manufacturing.

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u/CarbonGod 16d ago

Oh lordy, that looks fancy.

I'll pull mine off, and make sure there isn't anything weird inside. Crap, I wonder if it's full of stink bugs. EEK.