I’ve been working on my new kriss vector v2 & I’ve done several upgrades
-27.5cm alloy barrel+ metal T-Piece
-unported cylinder
-green o ring
hey @kitsern12
unfortunately you’re having to strip it down.
you need to test the seal on the nozzle <> T piece.
the vector’s stock t and nozzle have a fairly unique profile and its been noted a few times that many of the after market t pieces leak like a sieve because of poor contact with the nozzle rubber / silicon.
now, why you don’t experience this in burst / full auto is easy…simply…the box keeps hammering away at the cylinder shoving air into the system so what you see at the other end looks ok.
once you fix the seal, your full auto and burst will be off the chain by comparison to what you presently see as “ok”
as will your single shot.
checking the seal in the vector is a bit of fkn around…but the way i do it is…
stuff bluetack into the gel input hole
make sure your piston is seated in the cylinder and that the nozzle is all the way forward
blow down the barrel…
if you are leaking you’ll hear it
if you have a good seal you will feel resistance and if you blow hard either the piston will move (if your gearing isn’t installed) or you’ll blow out the bluetack…or go blue in the face trying.
I’ll give it a try
hey bro all the leaks checked seal up… Now waiting for my brand new aluminium push head to arrive and I’ll give it another go
just to ensure we’re on the right page…you tested with the barrel in the blaster?
Yup I put the barrel in the nozzle & cylinder & blow down the barrel the piston moved all the way…
has to be in the gearbox for this particular test
It’s in the gearbox when I tested it
then my next goto would be tappet timing / spring.
which would be a new one for me for a vector but still…relatively common across the board.
How to check the tappet timing? 
Start with making sure the spring is ok.
The timing on a vector is pretty good ootb
You’re still running stock nylon gearing?
Yup stock nylon gears
K…make sure your tappet moves freely and returns swiftly when released
The plate that connects the tappet to the nozzle can be installed back to front too
Checked… All good
hmm…i’m going to have to sleep on it…
out of curiousity, what gels are you using and what is the ID of your barrel?
7.5mm IDfor the barrel
and your gels?
7-8mm white gel ball
Hmm… Any Brand?
The reason is that not all gels are created equally and they are all 7-8mm…
But there’s a wide variance in sizing
