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Old 10-22-2004, 06:07 PM #1
Wulf
 
 
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New Pump!

Semi mode


Pump parts


bolt & striker


Pump mode, left side


Pump mode, right side



Got tired of not having a pump to play with so I made my own

Parts:
aluminum rods from a rifle cleaning kit
small piece of metal to connect the bolt to the pump arm assembly
pvc pipe connector
3/4 dia spring for pump return
lotsa time :p


Take the pvc connector and drill 2 holes on the very end. Cut the aluminum rods to size at the threaded end and SAVE the pieces you took off. Tap the pvc piece and thread the new end of the rods and screw em in. Tap the back of the bolt to accept a screw
(I used 8/32 threaded screws since thats what the pump arms were). Fab up a piece of metal with 3 holes in it to connect your pump arms to the bolt.

Next, take your striker and start grinding a channel into it IN FRONT of the old striker hole and be careful to keep the slot as narrow as possible to avoid the spring bending outof the slot. Take that old piece you chopped off the pump arms and slap a cup seal on it and trim it down until its about a quarter of an inch longer than a stock valve pin.

Remove the stock ball detent and striker buffer. Put your new longer valve pin in. Assemble the bolt/striker with the pin in the new slot ya made. Slide the pump arm over the barrel and screw the pump arm assembly to the bolt.
Take the new spring for the pump arm and slide it in behind the bolt and slap the back block on and voila, new spyder pump!

The beauty of this mod is it can still shoot in semi mode again, just take all the parts off and put the detent, old valve pin and striker buffer back in the original hole.

Yes it works as a pump and back in semi mode. I used the same springs in both configurations (hard valve, light or med main). All I had to do to adjust the velocity in the differnt modes is adjust the reg.

Last edited by Wulf : 10-22-2004 at 07:27 PM.
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Old 10-22-2004, 07:16 PM #2
needsalife
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*Looks at old spyder*
*Looks at post*
*Looks at old spyder*
*Looks at post*
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Old 10-22-2004, 10:36 PM #3
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pretty Fing cool

good job # 8......i was going to make somethign like this some time ago.....but never got around to it
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Last edited by ramenjames : 10-22-2004 at 10:41 PM.
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Old 10-23-2004, 12:10 AM #4
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pimptacular
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Old 10-23-2004, 05:06 AM #5
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Pretty neat, its not the prettiest thing in the world, but function over form baby.

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Old 10-23-2004, 07:29 PM #6
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how consistent would it be?
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Old 10-23-2004, 07:35 PM #7
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ok...so...how does it work??? i really wanna do this.....

do u find all teh parts at a hardware store?

how does the spring push the bolt back? im scared! i wanna do this but i dont wanna waist my money if it isn't gonna work....
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Old 10-23-2004, 08:46 PM #8
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pball_kamikaze- Cant really tell yet, the guy at the pro shop chronoing it was getting liquid co2 in it. There was shots within 1-2 fps of each other up to as much as 10fps.

kazkid8- Its not expensive
rifle cleaning kit for the pump arms was $6
PVC connector for the pump handle was around $2
4 screws and the spring was under $2

I already had the tools to do everything, you might need to buy a die to thread the pump arms and maybe the new valve pin which is only about $3 too.
You can cheat on the tap for the bolt, just drill the hole and start screwing one of the 8/32 screws in and out until its set.
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Old 10-23-2004, 08:50 PM #9
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so the screw goes in the BACK of the bolt? i can just put a screw in the hole were the pull pin goes...right?

can u make a more detailed instructions? im really bad at reading and understanding things...im more hands on
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Old 10-24-2004, 05:06 PM #10
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Nice job...I noticed your from OR, where do you play?
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Old 10-24-2004, 05:31 PM #11
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that is the engenuity of the members of teh pump posses for you

goes to show we kick tons of ***
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Old 10-24-2004, 08:02 PM #12
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kazkid8- I'll get some more pics of the parts for you soon


shortkidsrus- Paintball palace in Eugene, some outlaw ball and up in salem once in awhile.
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Old 10-24-2004, 09:43 PM #13
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woah i need to find my old spyder
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Old 10-25-2004, 12:34 PM #14
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Nice Idea

Nice work, maybe a phantom pump, drillin the sides for your pump rods would work smoother and fill out the model for ya, otherwise, good work, and way to think outside the proverbial box...
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Old 10-25-2004, 04:06 PM #15
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ok...tx
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Old 01-21-2005, 01:07 PM #16
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im a little confused about where the valve pin goes. it goes IN the striker?
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Old 04-03-2005, 12:45 PM #17
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The new valve pin replaces the old stock pin. It has to be a bit longer since the bolt pin is moved forward in the striker pushing it back a bit.
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Old 04-03-2005, 01:20 PM #18
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nice job! Now I gotta go dig up my old spyder and do that. Great work.
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Old 04-03-2005, 06:17 PM #19
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y dont u leave the spring behind the striker?
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Old 04-04-2005, 09:10 PM #20
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EDITED: I misunderstood your question .

The main spring is till there, but the striker buffer is removed.

Last edited by Wulf : 04-22-2005 at 07:17 PM.
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Old 04-21-2005, 09:56 PM #21
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wouldnt it double feed with no ball detent at all?
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