Fx wildcat mk3 problem

[PkShooter]

Ok so I bought a huma plenum and dual transfer port for this new wildcat mk3 sniper

I didn’t end up using the plenum, as I want to retain the external reg pressure adjustment and also waiting for the Ernest plenum

Whilst I have seen an increase of around 35fps with just the dual transfer port, there seems to be a couple of issues since reassembly 

firstly, the air tube pressure gauge isn’t working now. What have I done wrong for this gauge not to be working now?

also, when I fire it I can see the reg gauge moving, but also I can hear air release from the block area ... it sounds as though it’s just the reg pressure building back up ... is this right? 

 

[2manyAirGunz]

For the air tank pressure gauge I would de-gas the tube, pull the gauge and check the o-ring. When my Impact's pressure gauge did as you describe, pulled it and found a fragmented o-ring. There were pieces of the o-ring blocking the hole in the gauge, preventing any air pressure from reaching the gauge.

Also, the the sound of air refilling the plenum space is commonplace on my Impact when I have the regulator dialed up. Nothing of significance.

 

[PkShooter]

I

i went to empty the air tube again, as the air was coming out ... I also had air coming out of the small hole for the reg pressure adjustment ... is this normal or will I now have to go into the reg to change o rings?

Tube pressure gauge still not working, the black washer goes in first and then the gauge ... maybe I’ve missed something here?

 

[2manyAirGunz]

When air came from the reg hole on my FX WC MK2 I was advised by FXUSA to send the gun in to them, which I did. They replaced the regulator.

 

[PkShooter]

There’s no o ring on the tube gauge, just that black derlin washer which the gauge sits on

 

[Marco25]

Hi in the picture of the adjustment hole it looks like you can see a oring in the hole. This should not be. Did you put the spacer back in or is the reg in backwards. And the adjustment screw should be in the hole for access 

marco

 

[2manyAirGunz]

Hi in the picture of the adjustment hole it looks like you can see a oring in the hole. This should not be. Did you put the spacer back in or is the reg in backwards. And the adjustment screw should be in the hole for access 

marco

 

[Chuck-in-Ohio]

1- It looks like you installed the reg wrong, that joint should not be visible in the adjustment hole.



2- You do not have to crank that gauge monster tight, when you do, that sealing washer will deform and restrict the air passage. Flip it over and try again using moderate pressure to tighten.

 

[PkShooter]

The reg was fitted in the correct way, but was pushed further down the tube when air was leaking 

I didn’t use the fx spacer due to using the pictures huma plenum

when I fitted the reg, I did so with the tiny hole On the reg at 180 degrees from the tube hole used to adjust reg pressure 

 

[Chuck-in-Ohio]

The reg should not move at all when assembled correctly, let alone be able to be 'pushed farther down the tube. Is the plenum or spacer seated all the way to the rear of the tube?



edited out question that I answered for myself..........

 

[Chuck-in-Ohio]

Looked into it further, did you ensure that the plenum was seated all the way to the rear or bottom of the air tube or did you rely on air pressure to seat it?

 

[PkShooter]

I made sure the plenum was seated all the way in ... I used a wooden stick from the gauge end to make sure 

 

[yalel]

I made sure the plenum was seated all the way in ... I used a wooden stick from the gauge end to make sure

Maybe stupid suggestion/ question but is the allen adjustment screw that sits in the reg adjustment hole still present ? 

 

[PkShooter]

Yes, the hole in the air tube is still there of course 

but because the plenum means the reg is pushed further down the tube, the adjustment nut on the reg is no longer visible 

 

[yalel]

I think we misunderstand each other. Of course I can see the hole in the airtube is there but what I mean is if the screw that sits in the regulator that you make the adjustments with through that hole in the airtube is maybe out ?

 

[PkShooter]

Well using this plenum means the reg is no longer externally adjustable ... 

I did remove one o ring from the reg, the one closest to the plenum as per advice from huma ... perhaps this was the error?

 

[yalel]

Do I understand well now from your last reply that your tube was leaking through the hole in the airtube when you had the HIUMA installed ? But I thought you wrote 

“I didn’t end up using the plenum, as I want to retain the external reg pressure adjustment and also waiting for the Ernest plenum.”

Why don’t you re-install the AMP reg and keep external adjustment option . You add an external plenum and the sun shines again. The front gauge issue is a good reqson to install a better gauge ( Huma / Wiko has those working nicely )

succes

Yalel

 

[PkShooter]

 

[PkShooter]

I’ll try putting the o ring back on the reg

Ive actually just ordered a huma gauge to replace the fx one 

 

[Chuck-in-Ohio]

Here is a wild guess as to what happened.



The MKlll wildcat is supposed to have a larger plenum from FX installed.

That would mean that the adjustment hole for the amp reg would be in a different place than on a MKll Wildcat with amp reg.



The Huma plenum may be sized for a MKl or a MKll putting the adjustment hole right over the joint between reg and plenum.



You could either cut down the Huma plenum a bit to get the O ring on the reg behind the hole, or stack the Huma plenum and FX spacer to get the Huma plenum O rings to seal with the adjustment hole between them.