BE Nightmare leaking

wmcheesemaster · 12-07-2006, 04:49 PM

Just got it a few days ago (its a non-comp shorty), apparently the guy bought it in '89 or somesuch and has never even played with it. It seemed to need some cleaning, but the co2 loaded and it fired fine.

well, i managed to take it apart and put it back together again, though i couldn't remove anything from the upper barrel (punching pin and housing), i tried lightly hammering it out but it looks like it gets caught on the threading of the co2 cap.
I put it all together again, and now it's leaking all at once from the top barrel out of the set screws

I'm about to take it apart again but im afraid i won't even know what to look for.

Anyone know where to get o-rings for one of these (if that's the problem)? if not from the internets, then does anyone know what sizes from the hardware store?

I really hope i didn't screw up too badly, it's such a nice looking marker.

wmcheesemaster · 12-07-2006, 07:06 PM

haha, just an update for anyone thats interested, apparently you gotta take out the rear sight screws to remove the punch pin housing. I removed it, cleaned up (didn't really need to though, the o-rings are in great condition) put it all back together and now it's stopped leaking so much.

Anybody out there use these specific pumps and have any tips or anything? I'd like to learn as much as i can about it.
I'm also looking for any way i could attach a sight rail to the barrel, or basically any other modifications that could be done to it.

WilD · 12-08-2006, 10:22 AM

Well, having previously owned one and having been forced to rebuild all the valve seals, I'll give you this piece of advice, don't take it apart if its working. They are a nightmare to get sealed sometimes. (pun intended) Also, when thinking about modifications, try to stay away from any permanent alterations as they diminish the resale value.

hmudd13 · 12-09-2006, 05:55 PM

I used to help run a field up in Canada back in 1989 which had nightmares as a field marker.
I quickly found out that they got their name from an airsmith's point of view.

and not for what they could do on the field.

They fall into the category of "if they aren't broke, don't fix em"

Yet still, I love the old brass eagles.
And as I was told by Aldo Perrone himself......."oil it, LOTS, then oil it again"

As far as mods go.....you could solder sight rails on the brass ones and JB weld the aluminums

scarecrow · 12-09-2006, 06:44 PM

Nightmare is notorious for having burrs inside the lower valve tube. Particularly where the frame and pump arm screws enter the tube. These burrs will nick the o-rings when you re-insert the valve. Solution is to wrap a piece of emery cloth around a dowel rod and sand the burrs out. Clean lower tube thuroughly after this operation. Then you can replace the o-rings and re-install the valve. The o-rings on the outside of the valve body can be found at an well stocked hardware or plumbing store. There is nothing special about them. Buna-N o-rings work just fine. Like the post above says, oil the snot out of it before re-installing the valve. Only 3 unique seals in the Nightmare, two are inside the valve body (the cup seal and the valve tube o-ring) the other unique seal is the puncture pin seal. If you need replacements for any of the seals inside valve I have them.

Bored383 · 12-13-2006, 04:24 PM

you can actually flip the cup seal over as a stop gap

b-cuzz · 02-13-2008, 03:18 PM

I don't know about sight rails, but when I got mine it had a half-inch clamping scope mount (clamps around top tube and scope). It's kinda jury-rig looking, but it works.

12-07-2006, 04:49 PM	#1 (permalink)
wmcheesemaster Newbie Join Date: Dec 2006 Posts: 14	BE Nightmare leaking Just got it a few days ago (its a non-comp shorty), apparently the guy bought it in '89 or somesuch and has never even played with it. It seemed to need some cleaning, but the co2 loaded and it fired fine. well, i managed to take it apart and put it back together again, though i couldn't remove anything from the upper barrel (punching pin and housing), i tried lightly hammering it out but it looks like it gets caught on the threading of the co2 cap. I put it all together again, and now it's leaking all at once from the top barrel out of the set screws I'm about to take it apart again but im afraid i won't even know what to look for. Anyone know where to get o-rings for one of these (if that's the problem)? if not from the internets, then does anyone know what sizes from the hardware store? I really hope i didn't screw up too badly, it's such a nice looking marker.

12-08-2006, 10:22 AM	#3 (permalink)
WilD the MilD MOD Join Date: Mar 2006 Location: The Motor City Posts: 2,110	Well, having previously owned one and having been forced to rebuild all the valve seals, I'll give you this piece of advice, don't take it apart if its working. They are a nightmare to get sealed sometimes. (pun intended) Also, when thinking about modifications, try to stay away from any permanent alterations as they diminish the resale value. __________________ PGPOG #79 POG #1055

12-09-2006, 05:55 PM	#4 (permalink)
hmudd13 Resident Marker Monger Join Date: Jul 2006 Location: Colorado Posts: 663	I used to help run a field up in Canada back in 1989 which had nightmares as a field marker. I quickly found out that they got their name from an airsmith's point of view. and not for what they could do on the field. They fall into the category of "if they aren't broke, don't fix em" Yet still, I love the old brass eagles. And as I was told by Aldo Perrone himself......."oil it, LOTS, then oil it again" As far as mods go.....you could solder sight rails on the brass ones and JB weld the aluminums __________________ My wife keeps asking me why I need more markers?..........why does she do that? NO'MAAM #29 My Markers MCB Feedback AO Feedback Quoting WOLLFFY on AO; I don't recall mentioning trades, especially not for smart Farts. Thanks though.

12-09-2006, 06:44 PM	#5 (permalink)
scarecrow Active Member Join Date: Jul 2006 Posts: 149	Nightmare is notorious for having burrs inside the lower valve tube. Particularly where the frame and pump arm screws enter the tube. These burrs will nick the o-rings when you re-insert the valve. Solution is to wrap a piece of emery cloth around a dowel rod and sand the burrs out. Clean lower tube thuroughly after this operation. Then you can replace the o-rings and re-install the valve. The o-rings on the outside of the valve body can be found at an well stocked hardware or plumbing store. There is nothing special about them. Buna-N o-rings work just fine. Like the post above says, oil the snot out of it before re-installing the valve. Only 3 unique seals in the Nightmare, two are inside the valve body (the cup seal and the valve tube o-ring) the other unique seal is the puncture pin seal. If you need replacements for any of the seals inside valve I have them. __________________ B.P.S.: Unit of measure for the absence of Skill www.scarecrow-paintball.com Restoration and Custom work for vintage Pump Markers.

12-13-2006, 04:24 PM	#6 (permalink)
Bored383 slacker elite Join Date: Mar 2006 Location: Sandy Eggo by way of Mobtown Posts: 891	you can actually flip the cup seal over as a stop gap __________________ Check out my website http://www.bored383.com, hosted at http://www.angryhosting.com/ We need to save ourselves from those who would save us from ourselves. Tom Kaye '08 A book has moving parts. They're called pages. What will the future hold? smart parts = taco bell . . . Be Well!!

12-07-2006, 07:06 PM	#2 (permalink)
wmcheesemaster Newbie Join Date: Dec 2006 Posts: 14	haha, just an update for anyone thats interested, apparently you gotta take out the rear sight screws to remove the punch pin housing. I removed it, cleaned up (didn't really need to though, the o-rings are in great condition) put it all back together and now it's stopped leaking so much. Anybody out there use these specific pumps and have any tips or anything? I'd like to learn as much as i can about it. I'm also looking for any way i could attach a sight rail to the barrel, or basically any other modifications that could be done to it.

02-13-2008, 03:18 PM	#7 (permalink)
b-cuzz Active Member Join Date: Feb 2008 Location: Missouri Posts: 179	I don't know about sight rails, but when I got mine it had a half-inch clamping scope mount (clamps around top tube and scope). It's kinda jury-rig looking, but it works. __________________ Might as well play mech, 'cuz if ya need full auto, you've already lost! "Must the show go on?" -- R. Waters "The show must go on" -- F. Mercury

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