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Pump Shotgun Seal Problem

It sucks, literally

15 replies to this topic

#1 General Cole

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Posted 22 July 2007 - 03:00 PM

When I load my Pump Shotgun the seal is so good that when I pump it the dart gets sucked back into the plunger tube. I thought about putting somehting in the way to stop it, but when I tried it just got stuck and the pressure was so great I couldn't finish cocking it. Any help would be awsome.
We should stop calling out/making fun of/pissing GC off. He's actually contributed and is available for trade. He's a better than average member no doubt. Got your back Cole.
-Nerfer34

You know what... I know it's kinda late... but Props Cole.
-Baghead

#2 Dr Moose

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Posted 22 July 2007 - 03:11 PM

Just cock the gun first, and then load your dart in.
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QUOTE(Forsaken_angel24 @ Apr 29 2008, 01:24 AM) View Post

QUOTE(Kid Flash @ Apr 27 2008, 06:11 PM) View Post

What is the best way to go at removing a stump without any power tools? Thanks ahead of time!

Be a man! Use your hands!

#3 Forsaken angel24

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Posted 22 July 2007 - 03:12 PM

Remove barrel from coupler, cock the gun, put barrel back in coupler, then fire.
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#4 General Cole

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Posted 22 July 2007 - 03:27 PM

Well, I figured that there would be another way, but okay.
We should stop calling out/making fun of/pissing GC off. He's actually contributed and is available for trade. He's a better than average member no doubt. Got your back Cole.
-Nerfer34

You know what... I know it's kinda late... but Props Cole.
-Baghead

#5 z80

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Posted 22 July 2007 - 07:43 PM

Well, I figured that there would be another way, but okay.

Well, you could put a check valve onto the plunger tube, to let in air.
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#6 General Cole

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Posted 22 July 2007 - 07:53 PM

That is fesable. I'll get right to work on that.
We should stop calling out/making fun of/pissing GC off. He's actually contributed and is available for trade. He's a better than average member no doubt. Got your back Cole.
-Nerfer34

You know what... I know it's kinda late... but Props Cole.
-Baghead

#7 cappold

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Posted 22 July 2007 - 11:37 PM

I don't think a check valve would work, being that the air getting sucked down the barrel is going to have to come out of the same barrel. Check valves only let air go in one direction. Unless you are getting your air form another source you'll be in trouble. From the question, sounds like that is how the gun is getting air behind the dart.
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#8 General Cole

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Posted 22 July 2007 - 11:48 PM

Well like a Y splitter and a 45 angle to straighten the top out and the unused Y would be a check valve.
We should stop calling out/making fun of/pissing GC off. He's actually contributed and is available for trade. He's a better than average member no doubt. Got your back Cole.
-Nerfer34

You know what... I know it's kinda late... but Props Cole.
-Baghead

#9 Retiate

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Posted 23 July 2007 - 01:17 AM

All that trouble is definitely not worth making it so you can load a dart before you pump the shotgun.
Really, just taking off the barrel, then cocking the gun is just as easy as putting the barrel back on then cocking it.
I'm sure a check valve would work, it works on pumps, so why not plungers? But I really don't think it's worth it.
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#10 six-five-two

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Posted 23 July 2007 - 01:55 AM

Umm? Maybe just put a pin or a small wire or something through the barrel? That will keep the dart from going into the plunger chamber. And since the suction is so great, you can load it through the top of the barrel, it will suck the dart to the back of the barrel. Easy and fast...
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#11 Quilan Fett

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Posted 23 July 2007 - 11:23 AM

I thought about putting somehting in the way to stop it, but when I tried it just got stuck and the pressure was so great I couldn't finish cocking it.


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SNAP Shotgun


This guy can see the future!

QUOTE(pokemaster @ Mar 3 2009, 04:18 PM) View Post

hasbro in a nerf war!!!!! dude the will cancel it and confinscate are guns

#12 ambushbug

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Posted 24 July 2007 - 10:29 PM

When I load my Pump Shotgun the seal is so good that when I pump it the dart gets sucked back into the plunger tube. I thought about putting somehting in the way to stop it, but when I tried it just got stuck and the pressure was so great I couldn't finish cocking it. Any help would be awsome.



the same happens with mine - though that's a small price to pay for a good airseal (muzzle loading is alot easier than the removable barrel method). As you probably figured out, even if you can only half-cock the blaster, if you release the pump handle quickly, the half-cocked spring spits the dart back out.

If your dart/barrel fit is pretty tight (e.g. the dart doesn't slide all the way down due to gravity alone), then maybe a slightly longer barrel will make it easier to cock (more air volume required to suck the dart towards the plunger - though this might also mean alot of friction on the way out). I personally prefer a slightly looser dart/barrel fit (e.g. 9/16 brass works for my darts) and using plumber's goop, I jam up the back end (the one closest to the plunger) with about 2" of 17/32 brass and 0.5" of 16/32" PETG nested in that to keep darts from being sucked into the plunger. The setup makes it effectively a nested brass barrel - if you get it right, about 1.5" of the dart should lodge in the 17/32" brass section, maximizing air pressure and, thus, the force/velocity of the shot.

Edited by ambushbug, 24 July 2007 - 10:30 PM.

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#13 General Cole

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Posted 25 July 2007 - 12:08 AM

Its no question, the plunger chamber has a larger volume in the powers of 10. Even if I put it in the tip of the barrel and half pump it, it ends up in the plunger tube.
We should stop calling out/making fun of/pissing GC off. He's actually contributed and is available for trade. He's a better than average member no doubt. Got your back Cole.
-Nerfer34

You know what... I know it's kinda late... but Props Cole.
-Baghead

#14 King Of Butt Land

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Posted 25 July 2007 - 05:42 PM

What ever happened to you leaving and not coming back?

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QUOTE(Puppy-§layer @ Dec 18 2008, 04:22 AM) View Post

This contest may have some flaws, as people can simply be a deuschbag over the internet. By Lying.

A war-like setting/invitational would be better...


#15 Prometheus

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Posted 25 July 2007 - 06:23 PM

What ever happened to you leaving and not coming back?

-Butt



Who cares? He`s back, that`s all that matters.


Anyways, I`d think the check valve is too much. Personally, I`d cock it, then load it.

Edited by Prometheus, 25 July 2007 - 06:49 PM.

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QUOTE(VACC @ Jan 24 2008, 06:12 AM) View Post
I am NEVER going to sleep naked in the bed of a former child star ever again....seriously

#16 General Cole

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Posted 25 July 2007 - 06:25 PM

I said that I would come back around january, it was never for good. Nice to see you too.
We should stop calling out/making fun of/pissing GC off. He's actually contributed and is available for trade. He's a better than average member no doubt. Got your back Cole.
-Nerfer34

You know what... I know it's kinda late... but Props Cole.
-Baghead


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