20 replies to this topic

[nat]

Hey everyone, I just got some o rings from my local Ace for my nf I'm modding and there a little to big and I cant fit Two on the plunger head without them deforming into more of an oval than a circle. So, I was just wondering if you have to big of o rings does it not do anything to range and if you have them the right size does it increase range noticeably, oh and I have a Ace #49 spring in my nf

[Banshee]

Well, if the o-ring is too big that it doesn't slid smoothly through the plunger, then the ranges will suck. You want the o-ring to be just big enough to create a perfect seal between the head and the wall. I always use this little test to check my seals. Stick the plunger head in the plunger and stick the barrel in your mouth. Then blow out and then inhale through the barrel and if the plunger moves with ever breath, you got a good seal.

[Blacksunshine]

^ I would highly reccomend aganst doing that if you have sprayed any kind of silicone lubricant on the plunger.
Package says it could kill you.

[Banshee]

^ I would highly reccomend aganst doing that if you have sprayed any kind of silicone lubricant on the plunger.
Package says it could kill you.

True, however I think they're referring to straight consumption or "huffing". In this case hes just using the air in his mouth. He should be just fine if he doesn't eat it. Also, he should be using a light oil. It works better than WD40. I got a small 4oz bottle from a hobby should for like 5 bucks. Stuff works great! 4 years later and I still have 3/4 of the bottle!!!

[Retiate]

It better work better than WD40. That stuff eats away at your O-rings. To test a seal, I just cover the barrel with my hand and push the plunger in, if it's hard to push in, it's got a good seal. Though it has to slide easily in the plunger tube otherwise the greater friction will be worse than a bad seal.

[mintee]

Fa_24 wrote in his thread once about a good lubricant which came in a small blue tub... I found it in the electrical/plumbing section in Home Depot and tried it out, it's kinda sticky for a lubricant... I'm wondering if I got the wrong kind! Anyone else got the same thing? When I put it on my LS and Recon it was certainly thicker than the oil used to lubricate the two guns, but it still did the job.

[Kid Flash]

Did you get the plumbing putty in the small blue tub? Normaly 2.99 but on sale for .99 at home depot?

[laxtk88]

I know this has nothing to do with O-rings (kind of), but I use a graphite lubricant. Yes, graphite. I got it in a Camper's Inn store in the pinewood derby section. It is in a powder form by the way. It works pretty well and it does not ruin the O-ring. Unfortunately if it gets wet it is useless.

Edited by laxtk88, 08 July 2008 - 11:45 AM.

[Bullshit Dragon]

On the subject of O-rings: You don't want it to be too big, but you also don't want it to be too thick. I ran into both problems with my LS and ended up having to take it apart again after putting too thick of an o-ring on it. If the o-ring in question is too thick, it'll create friction within the plunger tube and you won't be able to get enough compression out of it. If it's too thin, it'll simply let all the air go past it.

On the subject of Lubrication: I use Harvey's Silicone Grease. It's $1.99 in the plumbing section of Home Depot. Don't get the stuff in the tube, get the stuff in the little white container. It works great even if it's a little expensive. It's a semi-clear gel meant for seals on o-rings in sinks, but it works wonders on Nerf Guns, I use it in all of mine.

[Shrub]

I have had this problem too because the #14 O-rings that keef suggested were to tight of a seal so I put the gun in the freezer and it worked great for 15 min.

EDIT: For lubrication I use silicone spray from liquid wrench but if you have a hard time reading it's in a yellow bottle.

Edited by Longshot Wielder, 08 July 2008 - 01:53 PM.

[Lynx]

I use e-tape under the stock o-ring with a silicone paste.

It is a very good lube since it supplies lubrication AND a little help in the seal since it is pasty, like most of your skin whitey! (kidding)

[nerfer9]

I am not sure about silicone lube. I was lubing my LS and it melted the plunger tube and plunger together and I had to throw it away.

[Banshee]

I am not sure about silicone lube. I was lubing my LS and it melted the plunger tube and plunger together and I had to throw it away.

Wow... sound like you used super glue instead.

[Blasphemy]

Hey everyone, I just got some o rings from my local Ace for my nf I'm modding and there a little to big and I cant fit Two on the plunger head without them deforming into more of an oval than a circle. So, I was just wondering if you have to big of o rings does it not do anything to range and if you have them the right size does it increase range noticeably, oh and I have a Ace #49 spring in my nf

Are you using #14 O-rings? If so you should be able to make it work, just loosen the plunger head by unscrewing the screw in the front of the plunger head just slightly so as to loosen the top part and allow for more space for the o-rings. I've done this on a Disk Shot and it works fine, it should work for you also, provided the similarities of the Disk Shot and NF.

And, Longshot Wielder, it is generally not a good idea to expose cheap conventional o-rings to such extremes of temperature.

[nat]

Blasphemy, When I had my Nf open the plunger head didn't come off into two peaces.

[Blasphemy]

Blasphemy, When I had my Nf open the plunger head didn't come off into two peaces.

Oh...I'm terribly sorry then, I haven't worked with an NF in six months and don't own one either. That must be one of the few inherent differences between it and the Disk Shot.

[Bullshit Dragon]

Blasphemy is indeed correct. The NF plunder head is indeed a two piece head. (I have the grey/green second gen one.) I had to take my NF plunger apart to put a new spring on it and it came apart in two pieces. (watch for a write-up on my NF soon)

Edited by Bullet Dragon, 10 July 2008 - 03:15 AM.

[laxtk88]

I remember that my first NiteFinder (the pale green kind, I think 2nd gen, I'm not sure) had a plunger head that didn't come apart either. I've seen that some of the newer versions' plunger heads do come apart though.

I have a second generation NF and the plunger head comes off... or I could be crazy. I have been told so before.

[Bullshit Dragon]

I remember that my first NiteFinder (the pale green kind, I think 2nd gen, I'm not sure) had a plunger head that didn't come apart either. I've seen that some of the newer versions' plunger heads do come apart though.

I have a second generation NF and the plunger head comes off... or I could be crazy. I have been told so before.

He doesn't mean that plunger itself doesn't disassemble, he means that the older style plunger head itself is one piece like on the LS, but some of the newer ones in the NF are two pieces for god only knows what reason.

[laxtk88]

I remember that my first NiteFinder (the pale green kind, I think 2nd gen, I'm not sure) had a plunger head that didn't come apart either. I've seen that some of the newer versions' plunger heads do come apart though.

I have a second generation NF and the plunger head comes off... or I could be crazy. I have been told so before.

He doesn't mean that plunger itself doesn't disassemble, he means that the older style plunger head itself is one piece like on the LS, but some of the newer ones in the NF are two pieces for god only knows what reason.

I already knew that. I am not an idiot. I stated that MINE was like all of the newer generation NFs. Not his.

Edited by laxtk88, 10 July 2008 - 03:38 PM.