P90 Problems, UPDATE upgrading???

[Short Round]

So after a bunch of Guarder Hop up rubbers later (thanks Duy for the help!) I installed a new hop up rubber on my inner barrel.

Now I reassembled my gun and loaded it for a test. And the results were THE SAME! With the clear hop up rubber (Guarder) the bb's were rolling out of the barrel.

After many tries I took out the clear rubber and installed a black Guarder hop up rubber, and this time the bb got stuck where the bucking holder sits (the beginning tip of the rubber).

Anyone got any ideas of what is causing this?

I'm thinking the air nozzle may be weared down now, or the "plastic" hop up has gone crap but I wouldn't know for the life of me. I can take pics of it if you want.

The gearbox runs fine btw, Everything seems to be working well.

[DarkAngel]

dude, your just having the most amazing luck arnt you. lol

[Short Round]

Originally Posted by DarkAngel

dude, your just having the most amazing luck arnt you. lol

Ohya, I've had so much fun with my gun haha

um the air seal nozzle's tip looks a little beat up

[DarkAngel]

Check your airseal, if bb's are dropping out when your firing, it could be that. ensure your gearbox is properly and firmly mounted with the support bracket installed during testing. Also check the FPS with the hopup completely off to eliminate the gearbox as the root cause. then apply hop slowly. If you are acheiving the desired fps it is most likely due to something wrong with your hopup or mag (ie missing nub, misfeeds etc)

[Short Round]

Originally Posted by DarkAngel

Check your airseal, if bb's are dropping out when your firing, it could be that. ensure your gearbox is properly and firmly mounted with the support bracket installed during testing. Also check the FPS with the hopup completely off to eliminate the gearbox as the root cause. then apply hop slowly. If you are acheiving the desired fps it is most likely due to something wrong with your hopup or mag (ie missing nub, misfeeds etc)

I have the black hop up rubber installed right now and the bb falls out of the hop up chamber when I flip the gun upside down (BB doesn't enter the inner barrel), instead of rolling out when I have the clear hop up installed.

I'll check if it is properly mounted now.

Do you mean checking the FPS with a chronograph?

[Spike]

What kind of P90 is it?

[DarkAngel]

so its falling out of the feed hole or falls out of the IB when the gun is pointed down?

[Short Round]

Originally Posted by Spike

What kind of P90 is it?

KS P90

Stock parts all around except for the ones stated below:

Modify Polycarbonate Piston (Full Teeth)
Modify Polycarbonate Bearing Piston Head
Modify Enhanced Cylinder Head - V6
Modify Stainless Steel Shims
Guarder Black Hop-up Set

Originally Posted by DarkAngel

so its falling out of the feed hole or falls out of the IB when the gun is pointed down?

It will stay in the hop up chamber when I point the gun down.

[DarkAngel]

Sooo.. when is it falling out?

[Short Round]

Originally Posted by DarkAngel

Sooo.. when is it falling out?

when I flip it upside down (i'm feeding bb's one by one into the chamber), so there is no mag in my gun right now

have any plans to be in the KW area in the coming week? I think it may come down to letting a second pair of hands and eyes examine my gun if I really want to find out the source problem.

[DarkAngel]

Ill be at the Twat Field in 2 weeks sunday, but thats brampton, not waterloo/kitchener.

what it sounds like you are saying, is that the round is not feeding into the hopup. Ie. The nozzle does not retract enough to allow the round to fall in.

[Short Round]

Originally Posted by DarkAngel

Ill be at the Twat Field in 2 weeks sunday, but thats brampton, not waterloo/kitchener.

what it sounds like you are saying, is that the round is not feeding into the hopup. Ie. The nozzle does not retract enough to allow the round to fall in.

Ya the bb just sits infront of the rubber, and when it is hit by the nozzle, it becomes stuck in the inner barrel. I have to then use a screw driver to push the bb from it's stuck position for it to fall out.

I can spin the nozzle around in circles, is that normal or should it be secure and un moveable on the guarder?

[Kos-Mos]

Try an other barrel.

Sound like your's is deformed a little and prevent the nozzle from working properly.

[DarkAngel]

As it turns out, hes using a guarder clear with a madbul teflon IB.

Due to it "mushrooming" from the Madbull's smaller outter diameter for their IB's, it sounds like its causing jams inside the hopup.

Issue is well known in the gundoc community, but not widely known for most users. This is partially why Madbull states with their IB, "Best used with Madbull hop up rubbers" etc. (Or something along those lines if i remember correctly.)

[THe_Silencer]

So is his issue solved?