SpudFiles

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.

maybe its your pilot valve. mine leaked when i modded my first sprinkler valve.

Yes, check for leeks, are you using a bike pump or an air compressor?

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.

Im using an air compressor and it doesnt seem like there is any leaks.

Maybe the diaphragm is messed up, or isn't sealing well.

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.

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?

Figured it out. The hole where the solenoid is wasnt sealed properly thanks for your help.

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?

No I took the top off, but I thought he meant you could somehow further take the insides out.

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