Modded Sprinkler Valve Problems

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
McSpudsalot
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Sun Feb 25, 2007 7:34 pm

Hey I just finished my first pneumatic gun. I modded a 1 inch Orbit. The first time I filled and shot it (with nothing in the barrel) it worked like a champ. Ever since that the air will just travel striaght through the valve and out the barrel when I fill the chamber :? . Any input on how to fix this would be very much appreciated.
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c19o
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Sun Feb 25, 2007 7:57 pm

maybe its your pilot valve. mine leaked when i modded my first sprinkler valve.
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judgment_arms
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Sun Feb 25, 2007 8:11 pm

Yes, check for leeks, are you using a bike pump or an air compressor?
Call me "Judge", it's easier to type.

Spud gun safety rules
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c19o
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Sun Feb 25, 2007 8:15 pm

Sometimes my marble gun ( i sold it and made my coaxial one) that had a 1" sprinkler valve wouldn't fill with a bike pump.
McSpudsalot
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Sun Feb 25, 2007 8:26 pm

Im using an air compressor and it doesnt seem like there is any leaks.
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c19o
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Sun Feb 25, 2007 8:28 pm

Maybe the diaphragm is messed up, or isn't sealing well.
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noname
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Sun Feb 25, 2007 9:18 pm

A couple things you could try:
Take apart the valve, clean and wash the diaphragm, make sure it's dry, put it back together.
Make sure the solenoid is screwed in all the way.
Make sure the manual bleed switch is down.
Make sure your pilot doesn't leak.
Make sure the equalization hole isn't clogged, if it is, slide a knife between the two flaps, and wash it.
McSpudsalot
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Mon Feb 26, 2007 12:17 pm

Im not too sure on what you mean when you say take apart the valve Im a newbie. Do you mean just take the top off or is there a way to further take it apart?
McSpudsalot
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Mon Feb 26, 2007 4:28 pm

Figured it out. The hole where the solenoid is wasnt sealed properly thanks for your help.
pyromanic13
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Mon Feb 26, 2007 4:44 pm

McSpudsalot wrote:Im not too sure on what you mean when you say take apart the valve Im a newbie. Do you mean just take the top off or is there a way to further take it apart?
...you drilled with out takeing it apart?
Movie dialogue: "The good die first."
Tom: "But most of us are morally ambiguous, which explains our random dying
patterns."
McSpudsalot
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Mon Feb 26, 2007 4:53 pm

No I took the top off, but I thought he meant you could somehow further take the insides out.
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noname
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Mon Feb 26, 2007 6:32 pm

You can take the diaphragm, top, screws, and spring out; that's all there is to the valve.
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