shootdown?

[emopunker2004]

so i have my leak fixed, now shootdown... could this be caused by the RT on/off i put it. you can hear it when just shooting air and you can see it with paint. S

So i decided to put my stock on/off. sounds like the shootdown is gone. too late to go out back and shoot some paint though. could the on/off cause that?

Also, my valve has 1 star left on it. AGD still does the free rebuild for the stars right?

[SSP REAPER]

so i have my leak fixed, now shootdown... could this be caused by the RT on/off i put it. you can hear it when just shooting air and you can see it with paint. S

So i decided to put my stock on/off. sounds like the shootdown is gone. too late to go out back and shoot some paint though. could the on/off cause that?

Also, my valve has 1 star left on it. AGD still does the free rebuild for the stars right?
AGD does not do free repairs anymore (Star program).

[Ando]

You have another tank you can try out?

[emopunker2004]

i dont. i dont think its the tank. there is a noticable difference in sound when rapid firing with the stock on/off vs the RT on/off. u can hear the air dropping off with the RT on/off on it

[Ando]

i dont. i dont think its the tank. there is a noticable difference in sound when rapid firing with the stock on/off vs the RT on/off. u can hear the air dropping off with the RT on/off on it
Might be something as simple as shortening your on/off pin. Try taking some meat off it.

Worst case, you might have a valve that won't work with it. :(

[emopunker2004]

yeh. well i'm not gonna fuss with it right now. i'll deal with it later. hopefully playing some ball tomorrow so the stock on/off will work for now

[athomas]

If the pin is longer than the stock on-off it could cause shootdown. The geometry of the assembly should be exactly the same length as long as the retro on-off is standard .750" length.

Is the trigger slow coming back? That would indicate a tight on-off oring.

[emopunker2004]

nope. the trigger comes back relatively normal i believe

[athomas]

Then it is probably related to on-off pin length. If you have level 10 shims, put one or two between the two retro on-off assembly halves. This will simulate a shorter pin and it should make a difference if that is the problem.

[FA22RaptorF22]

Per AGD. Shootdown is a velocity problem. Therefore velocity is a problem before the on off, or to do with the regulator section.

If you fire a shot and hold down the trigger, you should get no leaks. If it sputters, you need a new on/off ring. If all is good, check the regulator.

I would say a dirty cylinder around the reg piston, or reg seat oring needs lubing.

[emopunker2004]

anyone got a shim they wanna throw in an envelope and mail to me? lol

[Ando]

Per AGD. Shootdown is a velocity problem. Therefore velocity is a problem before the on off, or to do with the regulator section.

If you fire a shot and hold down the trigger, you should get no leaks. If it sputters, you need a new on/off ring. If all is good, check the regulator.

I would say a dirty cylinder around the reg piston, or reg seat oring needs lubing.
LTR...

Emopunke,
PM me your address. I have a few lvl 10 shims I can send ya.

[athomas]

Per AGD. Shootdown is a velocity problem. Therefore velocity is a problem before the on off, or to do with the regulator section.Not all the time. If the air passage is partially blocked by anything, such as an on-off pin that isn't fully opened, it doesn't allow the chamber to fully recharge before the next shot is fired. In a gun that was previously working fine and nothing has changed, then shootdown would probably be the regulator section. In this case where it seems to be dependent on which on-off is installed, it is more likely the on-off assembly that is causing a reduced air flow.

Now, that being said, it never hurts to clean the regulator section and check the orings. ;)

[FA22RaptorF22]

Not all the time. If the air passage is partially blocked by anything, such as an on-off pin that isn't fully opened, it doesn't allow the chamber to fully recharge before the next shot is fired. In a gun that was previously working fine and nothing has changed, then shootdown would probably be the regulator section. In this case where it seems to be dependent on which on-off is installed, it is more likely the on-off assembly that is causing a reduced air flow.

Now, that being said, it never hurts to clean the regulator section and check the orings. ;)

Ahh very good point. Yes..incorrect pin lengths would cause some issues.