It seems like the same volume of air is just being compressed back and forth. I didn't include the check valve from the original pump because the new pump has its own ball bearing valve. I am open to any help offered.
Sm 1500 Pump Replacement Problem
Started by BlackFox, Jul 03 2008 01:27 PM
4 replies to this topic
#1
BlackFox
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Posted 03 July 2008 - 01:27 PM
Alright, I added a new pump onto this SM1500 tank and the tank isn't holding the pressure.
It seems like the same volume of air is just being compressed back and forth. I didn't include the check valve from the original pump because the new pump has its own ball bearing valve. I am open to any help offered.
It seems like the same volume of air is just being compressed back and forth. I didn't include the check valve from the original pump because the new pump has its own ball bearing valve. I am open to any help offered.
"Until we meet in the place where there is no darkness"
-George Orwell, 1984
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Think that piece is beyond repair? Think again!
-George Orwell, 1984
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Think that piece is beyond repair? Think again!
#2
Banshee
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Posted 03 July 2008 - 06:56 PM
First of all, where did you get that pump and whats it for?
But I know what your problem is. In most pumps for guns there is a rubber gasket at the end that lets air in to the tank but not out. You don't have the gasket in the new pump so you can't hold the pressure in. What i would've done is take an old pump with the hose still on it, cut most of the pipe off the original pump. Then you wrap e-tape around the stump of pipe until it fits the opening of you new pump. Then take a piece of PVC of your desired size and stick it over the e-tape. (Make sure its very tight). Then blow into the open end to make sure its sealed perfectly. Then create a new pump handle with a new O-ring, make sure its a perfect fit. I use this on my RF20, Magstrike, and a few of my super soaker's. SO MUCH NICER to only have to pump 10 times to shoot 20 darts!
Hope that helped!
-Banshee
But I know what your problem is. In most pumps for guns there is a rubber gasket at the end that lets air in to the tank but not out. You don't have the gasket in the new pump so you can't hold the pressure in. What i would've done is take an old pump with the hose still on it, cut most of the pipe off the original pump. Then you wrap e-tape around the stump of pipe until it fits the opening of you new pump. Then take a piece of PVC of your desired size and stick it over the e-tape. (Make sure its very tight). Then blow into the open end to make sure its sealed perfectly. Then create a new pump handle with a new O-ring, make sure its a perfect fit. I use this on my RF20, Magstrike, and a few of my super soaker's. SO MUCH NICER to only have to pump 10 times to shoot 20 darts!
Hope that helped!
-Banshee
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#3
Renegademilitia15
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Posted 04 July 2008 - 12:46 PM
Wow. Awesome! Does the pump increase range? If so, does it fit in the shell of the gun?
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I used to have that problem until I got circumcised. 15 pounds later I was able to stand up straight.
#4
Kid Flash
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Posted 04 July 2008 - 01:31 PM
Wow... You really cant read can you? I mean really. There's a paragraph or two but you just look at the pictures and post. It is very obvious once you have read that he can't get any pressure.Wow. Awesome! Does the pump increase range? If so, does it fit in the shell of the gun?
#5
BlackFox
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Posted 04 July 2008 - 02:47 PM
That's the check valve I was talking about. I will include it in the rebuild. Thanks for the help.First of all, where did you get that pump and whats it for?
But I know what your problem is. In most pumps for guns there is a rubber gasket at the end that lets air in to the tank but not out.
And the pump was a ball pump of some kind- either basketball or vollyball.
No, it is only meant to decrease pump time. Ideally, I was hoping for a one-pump 1500, but I doubt that's what I'll get.Wow. Awesome! Does the pump increase range? If so, does it fit in the shell of the gun?
I cut out the back end of the orange "tank" and did some dremmeling to accomodate the new pump. The pumping will be a bit awkward, but not too bad.
"Until we meet in the place where there is no darkness"
-George Orwell, 1984
-----------
Think that piece is beyond repair? Think again!
-George Orwell, 1984
-----------
Think that piece is beyond repair? Think again!
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