"Punisher valve"-Need help

Torch · Sun Jul 02, 2006 1:14 pm

I have finished my first cannon and after messin around with it for a few hours I cant get it to work! The back of the diaphram valve just has a cleanout with a blowgun on it. Do I need a valve/sprinkler valve for it to work right?? Will try to get pics.

Also I just finished adding some more primer/glue on the fittings so that might do it..

Atlantis · Sun Jul 02, 2006 1:19 pm

What's not working about it? Is the air going out the barrel?

Torch · Sun Jul 02, 2006 1:23 pm

Yeah, I did the valve like it said to on the "How to" forum.

Atlantis · Sun Jul 02, 2006 1:25 pm

Are you sure the barrel is far enough back? It might not be seating against the diaphraghm.

Torch · Sun Jul 02, 2006 1:31 pm

Its in 1/4th of the cleanout plug threads.

Atlantis · Sun Jul 02, 2006 1:32 pm

It's should be perfectly flush with the threads I believe. Maybe it's bending the diaphraghm before it even fires. Can somebody who's built one help him out.

P.S. 600th Post!

Torch · Sun Jul 02, 2006 1:48 pm

As I thought, its the valve...I will need to remake it.

Thanks for the input.

SpudStuff · Sun Jul 02, 2006 2:11 pm

Just extend the barrel with a coupler

noname · Sun Jul 02, 2006 4:10 pm

Get some pics up and I'll work it out. Don't take it apart yet.

Torch · Sun Jul 02, 2006 4:27 pm

Well..Just found an old camera, will try and get a pic. Might take a while, thanks for the help!

noname · Sun Jul 02, 2006 5:25 pm

I am used to working diaphragms, but you must know a lot to use one on your first cannon. You'll learn how to fix all the problems and stuff. You could also draw up a picture of how it's messed up on Paint.

Torch · Sun Jul 02, 2006 5:35 pm

Cannon pics Yeah, i've been reasearching this type of valve for a while.

EDIT: fixed url

noname · Mon Jul 03, 2006 10:58 pm

God that thing is huge! Did you put your schrader/disconnect behind the diaphragm? If not, there's your problem. And if your only going to use a blowgun to suck the diaphragm back, it won't work. Blowguns are just too small.

Torch · Mon Jul 03, 2006 11:56 pm

Yeah, its behind. I am going to fix it sometime and convert it to a piston. And will prob order a sprinkler valve since I cant find one around here. Thanks for the help

noname · Tue Jul 04, 2006 11:46 am

I don't see why your diaphragm wouldn't work.

I didn't see anything wrong with it. Try running it with a compressor. Sometimes my diaphragms don't seal until like 30 psi so I have to pump hard and fast for the beginning. Jeez, with that humungo thing you'd be pumping for like 20 minutes.