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VM Empire Where the VM-68's and PMI-3 Come out to play

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Old 02-04-2013, 08:25 PM   #1 (permalink)
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VM-68 valve install?

Hey guys, first post here.

I bought a big box of paintball stuff off of Craigslist. I've been out of the sport for a few years but am gearing back up. The box had several guns including two VM-68. Both were completely caked with 10 year old paint. I've taken both guns completely apart, every part, every screw. I discovered that both guns appear to have aftermarket valves, one blue anodized and one purple anodized aluminum. I didn't read up on the gun before disassembly so it was all on my own. I took video and pictures so I would be able to reassemble. Seems everyone says there are 2 ways two remove the valves, tool or air...well there is a third..... Pounding! The gun was completely stripped, so it was essentially just a big block of aluminum. So I just pounded the back of the gun straight down on my work bench several times very hard and the valves popped out. I did put some gun oil in the valve screw holes to help out.

My question is which way do the valves go back in? These aftermarket ones have a large square cutout on one side and a single hole on the other, with the valve mounting screw holes at 90 degrees to these. So, which goes toward the top of the gun, the big square hole or the round hole????

Not sure how to post a pic from iPad....
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Old 02-07-2013, 04:20 AM   #2 (permalink)
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The valves go in with the square bored end facing the hammer, and the single round hole with a lip, facing the front of the gun.

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Old 02-07-2013, 01:45 PM   #3 (permalink)
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Thanks Doc.

here is a picture of what im talking about. I know which end goes toward the front of the gun. My delima is which side faces the top of the gun. The side with the square cutout, or the side with the round hole. Two holes on the sides are for the mounting screws.





Both are the same design, one from each of the two guns I've got.
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Old 02-07-2013, 08:18 PM   #4 (permalink)
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My Vm valves don't look like that.
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Old 02-07-2013, 09:22 PM   #5 (permalink)
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Yeah, the stock are different. That's why I can't figure out how these go in. There. Are only 2 options, I guess if no one knows then ill just flip a coin and see what happens....
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Old 02-08-2013, 07:49 AM   #6 (permalink)
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Actually, it won't matter.

That was a trick back in the day to get "more flow" out of a valve- instead of a single hole, they milled a big slot in the body. Bigger hole equals more flow, right? Probably sold a bunch of valves to people that didn't know any better, but as always, no matter how big the hole through the valve, if you haven't enlarged the hole into the valve (IE, it takes the same size cup seal) or the hole through the body, that big cut won't do a thing.

Put it in however you want.

Doc.
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Old 02-08-2013, 11:52 AM   #7 (permalink)
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Awesome! Thanks!
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Old 02-08-2013, 02:26 PM   #8 (permalink)
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Gun #1 up and running! Works great. Need o-rings for #2.
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Old 02-08-2013, 02:42 PM   #9 (permalink)
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Those look like "Marker" valves made by Mark Thompson.
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Old 02-18-2013, 01:30 PM   #10 (permalink)
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Question

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Those look like "Marker" valves made by Mark Thompson.
What do you mean?

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