Strange leak within the XValve

[audioSLAVE]

I'm wondering if it is the red oring that is around the base where the power tube tip screws into the valve body itself. I had similar issues where it sounded like it was the on/off area but could never isolate it. I sent it to Tuna and he was able to determine that it was the red o ring around the power tube base. This o-ring I believe is not on any exploded Valve view.

[ideinit]

I'm wondering if it is the red oring that is around the base where the power tube tip screws into the valve body itself. I had similar issues where it sounded like it was the on/off area but could never isolate it. I sent it to Tuna and he was able to determine that it was the red o ring around the power tube base. This o-ring I believe is not on any exploded Valve view.

Are you talking about #1 or #2 below?

XPLPBL.jpg

For #1 - I have swapped out the tip with my buddy's functional mag and it didn't help

For #2 - I have put tape around the seam and it did not change the leak sound


Or is there another location you're pointing to?

[vintage]

make sure the on off pin is not bent. the ULT pins can bend easier than all the others.

[audioSLAVE]

#2

[Tunaman]

My bet would be a nice scratch inside of the on/off hole...

[ideinit]

make sure the on off pin is not bent. the ULT pins can bend easier than all the others.

I had tested with my buddy's ULT in my mag and the leak persisted. So I think it's more with my valve body itself.

[ideinit]

#2

So I've tested with taping up the seam to see if the leak tone changes; it didn't. So I think it not #2

[ideinit]

My bet would be a nice scratch inside of the on/off hole...

Good point... I can see scratches within the on/off hole itself, but nothing terribly deep. I will take apart everything, clean, re-lube, and reassemble to see if I can see it more clearly.

If it's indeed damaged on/off hole, I guess there's nothing we can do to fix it, except for a new valve, ya?

[ideinit]

My bet would be a nice scratch inside of the on/off hole...

So I took apart the valve and cleaned everything up, especially around the on/off hole. I took a bunch of photos, highlighting the damages I can see. The highlighted scratches are relatively light, nothing too deep.

valve_damage.jpg

Please let me know what you think Tuna.

[Sandman]

Just tossing this out there,
You can get leaks from this area created by the regulator pin assembly not being held well together by the c-clip or issues with the orings on it.
It will seem like an on/off leak and you will go crazy trying to find it. It will leak with and without the trigger pulled. It will seem like its coming from under the frame. It does not always vent out the hole in the valve. It can be inconsistent or change slightly each time you gas up the gun, because the assembly will adjust slightly each gas up. Typically with this issue it will make the on/off sprinkler effect too, again making you feel it's in the on/off. But trust me it can be that assembly.
Your issue may not involve that assembly at all, but it's always worth a look.

[nak81783]

Just tossing this out there,
You can get leaks from this area created by the regulator pin assembly not being held well together by the c-clip or issues with the orings on it.
It will seem like an on/off leak and you will go crazy trying to find it. It will leak with and without the trigger pulled. It will seem like its coming from under the frame. It does not always vent out the hole in the valve. It can be inconsistent or change slightly each time you gas up the gun, because the assembly will adjust slightly each gas up. Typically with this issue it will make the on/off sprinkler effect too, again making you feel it's in the on/off. But trust me it can be that assembly.
Your issue may not involve that assembly at all, but it's always worth a look.

This would be coupled with erratic velocity, correct, since the dump chamber pressure would vary considerably?

ideinit, how are your velocity strings?

[audioSLAVE]

I would send this to Tuna to have him confirm or isolate any issue before buying a new valve.

[nak81783]

Is it just me, or does that bigger scratch appear to be right where the bottom on/off oring seals?

There has to be an epoxy, JB Weld, or something that can be used to patch that scratch. Heck, I'd try a light coat of superglue before buying a new valve.

[Tunaman]

Is it just me, or does that bigger scratch appear to be right where the bottom on/off oring seals?

There has to be an epoxy, JB Weld, or something that can be used to patch that scratch. Heck, I'd try a light coat of superglue before buying a new valve.

I usually use epoxy. It usually works if you sand it real good.

[nak81783]

I usually use epoxy. It usually works if you sand it real good.

You literally have seen it all, haven't you?

What normally causes this? Being too aggressive with a pick to remove orings?