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suggestion & question

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suggestion & question

Postby nelson » Sat Jul 23, 2016 1:34 pm

Nice forum you got here!
I've got a new Everlast 164si and am coming along fine. Pressure in my 80cf tank is down to 2000 after 4 seatings of practice. I got a leak. Without welding I've got 5cfh going back to Airgas to bottle and sell back to me.
I know I'll have to open it and fix but I wondered if a welding machine maint. & repair category might be useful. It's good to know what's inside the box.
I know I'll have to address spark gap cause I'm green and I lose sight of the tip in the arc. Sticking the tungsten will erode that part I've heard.
Thanks!
Stone knives and bearskins.....and a NEW EVERLAST 164SI !!!
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Re: suggestion & question

Postby Otto Nobedder » Sat Jul 23, 2016 2:07 pm

Are you saying your flowmeter shows 5CFH anytime the valve is open? That's a pretty significant loss, and Everlast will likely ship you a replacement, so I'd contact them before opening the machine and risking voiding the warranty. If that's not what you meant:

The easiest way to prove a leak before (or through) the gas solenoid is to open the bottle, let the pressure stabilize for 15 seconds, close the bottle valve, and watch the needle on your regulator. It should not move for quite some time (no system is perfect, and it will eventually drift down, but you should get a good ten-15 minutes with no detectable change).

If it does drop, then a soap test of all external fittings and connections is in order, and one suspect spot in particular is where the valve handle enters the valve on the bottle. If you find a leak there, try opening the bottle valve fully, hard against the stop, and test again. (There is supposed to be a positive seal in that position, which is why all high-pressure bottles should be opened fully.)

An 80CF bottle will show pressure drop much faster than, say, a 280CF bottle, so if no leak can be proven, there are gas conservation measures you can take.

Steve S
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Re: suggestion & question

Postby nelson » Sat Jul 23, 2016 9:34 pm

Thank you!
My bad...the fault was internal. I undertorqued the inlet on the backside of the unit.
Stone knives and bearskins.....and a NEW EVERLAST 164SI !!!
nelson
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Location: near philly

Re: suggestion & question

Postby Otto Nobedder » Sun Jul 24, 2016 1:55 pm

Glad you got it sorted out, while you still have gas left!

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Re: Marine Heat Exchanger Repair Ideas

Postby w123turbo » Fri Feb 17, 2017 6:42 pm

Due to a recent deep freeze and failure of engine heater are boats heat exchanger developed a small crack. I was curious what might be the best way to repair this unit.
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