Find fields & stores near you!
Find fields and stores
PbNation News
PbNation News
Community Focus
Community Focus

Thread Tools
Old 08-27-2014, 03:22 PM #1
gretch6364's Avatar
Join Date: Apr 2002
Location: Denver
 has been a member for 10 years
VIS Back Cap Movement

I was wondering if anyone's back cap moves up and down when they shoot. I have a new VIS with about a case through it, and I was emptying a tank to move the bonnet location and noticed the back cap would bounce up and down as I was shooting it.

I never noticed this while playing, and my magnet seemed fine, etc. I was firing into a dry full of towels with an empty hopper on and the barrel wrapped up, so maybe blowback of some kind? Maybe the two O-rings on the front of my engine need lubed?

Only things I could think of that were different. The engine didn't come flying out the back or anything, but it was coming up pretty far, and was curious if anyone else has noticed this?
gretch6364 is offline   Reply With Quote
Old Sponsored Links Remove Advertisement
Old 08-30-2014, 10:15 AM #2
Big Papa Pink
High-end Aficionado
Big Papa Pink's Avatar
Join Date: May 2012
Location: NoCO
Annual Supporting Member
Big Papa Pink is BST Legit
Big Papa Pink owns a Planet Eclipse Geo
Big Papa Pink has achieved Level 2 in PbNation Pursuit
Big Papa Pink supports DLX Technology
I have never experienced this with my three VIS engined Victories, although I don't dry-fire them ether as I don't want to have issue with the pillow in the bolt. I'm not sure what to suggest.
Domination through Saturation
Old and Slow

Current Dark Side Markers:
Active: Several Markers
Active Reserve: Many, Many More
Retired from Active Service: A Few limited edition yet fully functional markers

Trade/Sale Threads:
None Currently
Big Papa Pink is offline   Reply With Quote
Old 08-31-2014, 07:41 PM #3
Motojunkie's Avatar
Join Date: Apr 2013
Location: Goodyear, AZ
Annual Supporting Member
Motojunkie plays in the PSP
Motojunkie plays in the APPA D4 division
Check to see if the magnet came loose in the back cap. If so, there's nothing holding it down. A little super glue will fix it right up.
Phoenix Rising Paintball
Motojunkie is offline   Reply With Quote
Old 09-01-2014, 12:00 PM #4
gretch6364's Avatar
Join Date: Apr 2002
Location: Denver
 has been a member for 10 years
Magnet is not loose...still pressure there
gretch6364 is offline   Reply With Quote
Old 09-03-2014, 09:43 PM #5
PL gun collector
jtguy2269's Avatar
Join Date: Mar 2003
Location: Big Sky, Montana
 has been a member for 10 years
Have you tried with paint
intimidator owner for over a decade
  • Looking for:
  • Freeflow and shocktech markers
jtguy2269 is offline   Reply With Quote
Old 09-12-2014, 05:04 PM #6
T3DDYB3AR's Avatar
Join Date: Jul 2014
I noticed this with my own Vis last sunday practice. I talked to numerous people about this issue including Garrett from Blast and Joel from Paintball Gateway. So I replaced both of the 006 orings on the bottom side of the engine casing with 007's. Doing this fixed the problem. Be sure to cover the oring grooves with lube before inserting the new orings, and then make sure the outside of the orings has lube on it as well.

Keep in mind that when you push the engine back into the gun, it could potentially scrape the orings. Inserting the engine with the holes on its sides and then turning it inward can help. Dan from Yourpbfriend has a video of him doing it. Click on the link below and skip to 13:05.


Last edited by T3DDYB3AR : 09-12-2014 at 05:06 PM.
T3DDYB3AR is offline   Reply With Quote
Old 09-13-2014, 03:02 PM #7
PaintballofOKC's Avatar
Join Date: Oct 2013
Location: Oklahoma City
its due to low pressure to the marker
PaintballofOKC is offline   Reply With Quote

Thread Tools

Posting Rules
Forum Jump