mcarterbrown.com  

Custom Projects / Custom Questions How do I customize? What do I customize? What do I use? Share you experiences and faults here!

Reply
 
Thread Tools Search this Thread
Old 01-02-2013, 04:17 PM   #1 (permalink)
Active Member
 
Join Date: Jan 2011
Location: Greensboro, NC

Leaking Air down barrel?

So I am using an Ion valve system on a project and I am getting air leaking down to barrel. I check the seal between the bolt and the bolt stoop disc and that is a very good seal. To isolate things further I only ran air to the front port and it still leaked. I am lost !!!

Oh it is deff coming through the bolt not around it.

This makes no sense to me.

The bolt and the inside of the breach are no pristine do to some poor choices by the machinist assigned to this project. I still don't know how the air is getting into the bolt.

Paul
__________________
Still trying to phone home
ThreeJsDad is offline   Reply With Quote
Old 01-03-2013, 04:31 PM   #2 (permalink)
Brass Monkey Customs
 
tymcneer's Avatar
 
Join Date: Oct 2006
Location: Baltimore MD

Brass N Wood Fan
Kilt Fan
As the AS gun is Ion based, look carefully at the bolt, there may be a step down between the sail oring and the "vents" that allow ait to move from the dump chamber to the bolt face. If there is not enough axial pressure on the oring in the body, the bolt will leak.

There is also the possibility that the pressure is too low. There is minimum pressure in the oring gland design, and you may be under it.

Ty
__________________

Brass Monkey Customs

Brass Freak compatible and Equation inserts in .665, .670, .675, .678, .680 and .685

Still selling brass tubing, with .678 barrel stock now available!

My feedback: MCB - eBay - AO
tymcneer is offline   Reply With Quote
Old 01-03-2013, 06:07 PM   #3 (permalink)
Active Member
 
Join Date: Jan 2011
Location: Greensboro, NC

Dead on Bud. A new bolt a just a bit more pressure took care of it. Version II is about ready to go to the field. I will try and give you a call later.

Oh, I turned a delrin piece today that took up a bunch of the dump chamber.

paul
__________________
Still trying to phone home
ThreeJsDad is offline   Reply With Quote
Old 01-03-2013, 06:29 PM   #4 (permalink)
Brass Monkey Customs
 
tymcneer's Avatar
 
Join Date: Oct 2006
Location: Baltimore MD

Brass N Wood Fan
Kilt Fan
That should help get your velocity under control Plus, more air efficency

Next, test the barrel length to pressure sweet spot idea we were discussing.

Ty
__________________

Brass Monkey Customs

Brass Freak compatible and Equation inserts in .665, .670, .675, .678, .680 and .685

Still selling brass tubing, with .678 barrel stock now available!

My feedback: MCB - eBay - AO
tymcneer is offline   Reply With Quote
Reply

  mcarterbrown.com » Custom » Custom Projects / Custom Questions

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


All times are GMT -4. The time now is 05:50 AM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO
© MCB Network LLC