Sheridan Delrin Bolt Question

triggerhappy · 10-06-2007, 12:21 AM

So im going to be making a run of sheridan delrin bolts and some sheridan velocity adjusters For me and my friends and if anyone here wants some give me a Pm. My question has 2 parts.1. do i need to have orings on the bolt, my cocker has a delrin bolt that has no orings and it does not leak?2 Where can i get some boly orings, are thaey a special type, if so what type.

Thanks guys

Railgun · 10-06-2007, 12:36 AM

I put Orings in my replacement Sheridan bolt but I've also done delrin bolts with no Orings.

Something that CAN help just a bit is some very narrow slots to act as labyrinth seals. They are easy to do and may help just that little bit more on a no Oring bolt. I ground up a Super Micro Parting tool sort of shape to make the grooves. Around 10 to 15 thou wide and cut the grooves about 20 thou deep. I cut 3 grooves per "Oring" spaced around 50 to 60 thou apart.

I have no idea if they help or not but they are supposed to and they look real tech'y and are great for accumulating Poser Value Points or PVP's....

Deus Machina · 10-06-2007, 07:51 AM

A bolt with O-rings will be a more efficient. How much depends on the fit. But it will also need lube, and slightly more effort to move. Perhaps not noticeably.

Like Triggerhappy said, just some little grooves may help a little by disrupting returning airflow. If nothing else, they really wouldn't hurt a ringless bolt.

As for the rings, anything the proper size. The actual marker will effect that size.

kidneythief · 10-06-2007, 09:25 AM

Your doing a "run" of bolts and you dont even know if they need o-rings?

-Jake

triggerhappy · 10-06-2007, 01:52 PM

yes jake, ive already started to make them, i was just asking a question to find out if i need that, i hope thats not a crime.(JK) Ive made 1 alraedy and its going to be for my semi PGP project. Then my friend wanted one, then his friend wanted one, so now im making a couple more.

B · 10-06-2007, 02:20 PM

Research is the key before making a product, that said what do you thing the o-rings are in there for? They are there to account for tolerance differences from gun to gun.

sniperfan · 10-09-2007, 03:04 AM

You can play around with it-

Try this: run ONE o-ring in between the feed port and the gas transfer port, i.e. the middle one.

I'm sure youre looking at a stock bolt and getting your dimensions, right? Try making the new o-ring groove *slightly* deeper, say 10-15 thou deeper than the stock grooves. I found that approach would seal almost exactly as well as a normal depth o-ring groove, but reduced the cycling effort.

And if all else fails, you can go back and cut o-ring grooves in the bolts.

10-06-2007, 12:21 AM	#1 (permalink)
triggerhappy Active Member Join Date: Aug 2006 Location: California	Sheridan Delrin Bolt Question So im going to be making a run of sheridan delrin bolts and some sheridan velocity adjusters For me and my friends and if anyone here wants some give me a Pm. My question has 2 parts.1. do i need to have orings on the bolt, my cocker has a delrin bolt that has no orings and it does not leak?2 Where can i get some boly orings, are thaey a special type, if so what type. Thanks guys __________________ Bomb Hills Not Countries Kick A$$ Customs We go what you need "Well, I lost this finger playing paintball, and this one in an elephant stampeed, this one juggling rusty chainsaws,...... TriggerHappy's Feed Back

10-06-2007, 12:36 AM	#2 (permalink)
Railgun Post Whore Join Date: Oct 2006	I put Orings in my replacement Sheridan bolt but I've also done delrin bolts with no Orings. Something that CAN help just a bit is some very narrow slots to act as labyrinth seals. They are easy to do and may help just that little bit more on a no Oring bolt. I ground up a Super Micro Parting tool sort of shape to make the grooves. Around 10 to 15 thou wide and cut the grooves about 20 thou deep. I cut 3 grooves per "Oring" spaced around 50 to 60 thou apart. I have no idea if they help or not but they are supposed to and they look real tech'y and are great for accumulating Poser Value Points or PVP's.... __________________ Model airplanes are cool too!

10-06-2007, 09:25 AM	#4 (permalink)
kidneythief Lord humungus the Mod Join Date: Mar 2006 Location: Home Finally!!!	Your doing a "run" of bolts and you dont even know if they need o-rings? -Jake __________________ "I wish simply to be a decent person, yet I will always fear the retards" -Brian Hindt(geech) MCB Moderator Kidney Machine

10-06-2007, 01:52 PM	#5 (permalink)
triggerhappy Active Member Join Date: Aug 2006 Location: California	yes jake, ive already started to make them, i was just asking a question to find out if i need that, i hope thats not a crime.(JK) Ive made 1 alraedy and its going to be for my semi PGP project. Then my friend wanted one, then his friend wanted one, so now im making a couple more. __________________ Bomb Hills Not Countries Kick A$$ Customs We go what you need "Well, I lost this finger playing paintball, and this one in an elephant stampeed, this one juggling rusty chainsaws,...... TriggerHappy's Feed Back

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10-09-2007, 03:04 AM	#7 (permalink)
sniperfan Rec Poster Join Date: Jul 2006 Location: Bay Area of CA	You can play around with it- Try this: run ONE o-ring in between the feed port and the gas transfer port, i.e. the middle one. I'm sure youre looking at a stock bolt and getting your dimensions, right? Try making the new o-ring groove slightly deeper, say 10-15 thou deeper than the stock grooves. I found that approach would seal almost exactly as well as a normal depth o-ring groove, but reduced the cycling effort. And if all else fails, you can go back and cut o-ring grooves in the bolts.