having a problem w/ pressure on my BBT

[bakerboy4679]

I've been having this problem recently w/ my BBT. When i air it up, no leaks :ThumbsU3:
When i shoot paint, the first shot is fine, then it takes about 10 seconds for the pressure to build back up., even still, the velocity is really really low(w. the HPR set at 300, it's running about 150 fps!)

I'm so dissapointed in it, and i dont know why it's not getting the pressure it needs to push the balls..* that reminds me, when you try to shoot fast, even perhaps 5 bps, the balls build up in the barrel(maybe big paint) but it doesnt like to push them,.. AT ALL.

so the symptoms are:

high HPR settings, low FPS
pressure decreases after few shots, has to recharge- takes a few seconds
pisses andrew off so bad it makes him want to pee on it, then cut it in half

whats going on?
~Andrew

[P-Train]

Try turning up the lpr or aoc. I was getting even lower fps than you were at around 400 psi and that helped.

[bakerboy4679]

could it be that my LPC is presenting a problem???

[P-Train]

I personally would have no clue, I run just the aoc. I couldn't get anything over 100 until I turned it up.

[shiftycastro]

my gun does the same thing .... i have a rock lpr and a sidewinder hpr and no matter what pressures it stays around 150fps..

i know its not the regs ive put new ones on and get same result,...... my ram is fine and i have edwins spring on it. i figure its got to be the noid on mine .....on yours if you have the aoc try to adjust the pressure on it first

[Edwin]

You have to fix one thing at a time!!!

If the HP recharge is a problem, then you have to get that fixed before you can troubleshoot anything else. The HP should recharge quick no matter what is hooked to it.

Next you can troubleshoot the other problems if any.

The only thing the LPC (for AOC) can be doing to harm your marker is covering your LP hole. Due to machining differences in Tribals, sometimes when you screw a AOC cap or a LPC for AOC into the threads, the lip and or oring will cover up the hole that allows air to enter the body and go to the noid. I have never seen this problem, but kytracker has. I wouldn't worry about this until you have the HP fixed.

Shifty, you have a good noid that you can test on your marker??? Just swap them out and see if that is the problem. Oh make sure it isn't a valve buffer probelm.

[bakerboy4679]

I know the HPR is fine. It recharges fine.

Oh make sure it isn't a valve buffer probelm.
What would be some symptoms of a bad buffer?(thats the one on the side of the valve w/ the flat side? right)


idk, maybe your onto somethng about the LPC being in too far. I'll try to do something w/ that, see if it works.
I really dont want to adjust my AOC. Why would it need adjusting if it worked fine before, with my stock HPR??


another thing, when you said something about a bad selenoid Edwin, i remembered what my gun is doing now. When i air it up, shoot a few shots, the selenoid hisses constantly, and it blows out air, like when you shoot it. BUT, when you fire it a couple more times(10-20) it's fine, no leaks at all..

I'm so confused..

[Edwin]

I know the HPR is fine. It recharges fine.
Oh, I must have read it wrong. I could have sworn you said slow recharge.



What would be some symptoms of a bad buffer?(thats the one on the side of the valve w/ the flat side? right) Low FPS because you hammer can't open the valve all the way.


idk, maybe your onto somethng about the LPC being in too far. I'll try to do something w/ that, see if it works.
I really dont want to adjust my AOC. Why would it need adjusting if it worked fine before, with my stock HPR??
All you have to do is unscrew it a turn to see if it helps



another thing, when you said something about a bad selenoid Edwin, i remembered what my gun is doing now. When i air it up, shoot a few shots, the selenoid hisses constantly, and it blows out air, like when you shoot it. BUT, when you fire it a couple more times(10-20) it's fine, no leaks at all..

I'm so confused..
Sounds like your AOC is sticking!!! Did you listen to me and lube your AOC with DOW 33??? As if I remember correctly it had oil in there!!! Hissing noid can be two things: 1 pressure too high (note bolt is back--opened bolt position), or 2 pressure is too low and it can't even move the spool in the noid. Because your inconsistant, it makes me think that the AOC isn't lubed correctly.

Remove the LPC, remove the AOC plunger (the Stainless Steel part that has a 10-32 screw hole for pulling it out). Lube that (015 urethane) oring and the plunger shaft (as the shaft is sealed with a smaller oring and must be slipery too) with dow33, lube the AOC chamber/bore (where the plunger came out of). Also if your remove the HP ASA, look to see if that little hole is open, as that is an AOC vent, and must be open to let the AOC work properly.

Finally, I remember your AOC body (the part that the ASA screw holds in place) was a little dinged up, like someone screwed the ASA screw in while the AOC body was in the incorrect position. If that AOC body moves back or forth your LP will change!!! Also if your ASA screw (brass) is bent, then this could cause LP changes too. I never saw your ASA screw as you forgot to sent it to me.

I guess you don't have a LP gauge do you???? The AOC gauge works like my LPC for AOC, it just replaces the AOC Cap, and has a gauge mounted to it. This would be an indespensible tool at this point!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Spend the $25 and start eliminating the headaches!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[bakerboy4679]

funny thing actually, i bid on one last night, but i didnt have that much cash to spend(around $23). but i'll post a pic in a second of my asa screw. it's pretty mangled.. i have no idea why it would do this.


and i'll be buying some Dow 33 and lubing everything w/ it today. I know you stress useing that stuff before all else.. but i'll do that. either dow 33 or like White LIghtning grease or soemthing.

Thanks for the assisatance guys, especially you Ed.
~Andrew

how would i go about fixing this?


What would be some symptoms of a bad buffer?(thats the one on the side of the valve w/ the flat side? right]

Low FPS because you hammer can't open the valve all the way.[/qoute]

I wont worry about it yet, i'll be doing these steps 1 at a time, just to trouble shoot whats going on.

Thanks again for the advice.. man.. i dont know what i'd do if it wasnt for this site!

[Edwin]

Not a problem!!! I just have been on more often some of the other experienced guys. Several people could have helped.

[bakerboy4679]

IT'S ALIVE!!!!!!!

shoots ropes!! now all i need to do is chrono it and we're set!!!

i greased the crap out of EVERYTHING, and it works awsome now.. I'll get pics up in a liittle while, after i find my usb cord, of the bronze asa screw damage, and of the aoc.

BUT IT WORKS!!!! YAY

thanks Edwin!!! your my new hero!!

[bakerboy4679]

http://img56.echo.cx/img56/3425/aocdamage8wi.jpg
http://img56.echo.cx/img56/1517/asascrewbent1ln.jpg


good thing i bought your S/S ASA screw when i did!! but seriously, why wouldit do that? i'm sure that the AOC being bent has something to do w/ that little screw..
and It wasnt like that when i put it in the first time, i musta done something wrong..
why would it do that? how? and has anybody ever seen this??

[Edwin]

The AOC body is held in place by the ASA screw (that is why the screw has that funny end and isn't just threaded all the way). Since the screw holds the AOC body in place, the AOC body must be lined up correctly before you screw your ASA back on. If you feel resistance before your ASA screws up and meets the body, then your AOC body isn't aligned properly. Before you screw the ASA back on look through the ASA hole in the body, you should see the AOC body, and the oring grooves of the AOC body should not be in line with the hole, one oring groove should be forward of the hole and one should be rear of the hole. You can always test fit the ASA screw (without the ASA adapter) to see if it will screw all the way down and not hit the AOC body.

Basically it was inexperience that casued the problem, you or the previous owner, took that big ass allen wrench and started turning, not caring that it was hitting something, and kept turning until the brass ASA screw bent, and the aluminum AOC body bent too. What was that old song, ummm???? "If it don't fit, don't force. Just relax and let it go."

Never, never, never use gorilla force on any part on your Tribal!!! If it isn't assembling with ease, your doing something wrong. That especially goes for grip frame screw, as they get stripped all the time!!! Just because you have the extra torque of that allen wrenc, it doesn't mean you need to use it!!!

O.K.???

[bakerboy4679]

yes daddy.. please forgive me? :( :doh: