Fx Impact mk2 regulator problem

[Sjoerd]

Hello guys,

Because i had i little bit of regulator creep on my FX Impact mk2 pp i ordered a Huma gen 3 regulator.

After i installed it today following all the instructions from Huma and videos of Utah Airguns i got a problem.

When i put the pressure back on i get no reading on the regulator gauge. I slowly turned the regulator up, i can hear it is letting air through. When im screwing the bottle of the gun and then take reg gauge of it is letting air out. So i assume i do get pressure but no reading. 

To check if the gauge is not broken i switched the two gauges. Then i still get fill pressure reading but no regulator pressure reading. 

What could the problem ?

 

[sonny]

gauge is to tight try reinstalling the gauge without over tightening 

 

[Fire_at_will]

My guess would be washers stacked wrong.

Also are you installing the reg as one piece? Or are you putting in the piston, then washers, then screw?

 

[Sjoerd]

I did put in the reg in as 1 piece, double checked the stacking of the washers. Got it out and put it back in again but still the same problem.

Also tried to loosen the gauge but still got no reading..

 

[ghostrider0311]

If I were you man I would check the floating delin seat or you have to many spring washers it wont regulate orrrrr you jamed a piston inserting into the body. 

 

[Fire_at_will]

The only other thing is the valve disk, you put just one in there right?

Also, you are turning screw out one turn before repressurizing. That alone should get 100 bar on the guage.

 

[ImpactX]

Just turn your reg pressure up. I didnt know how far to screw the reg into the body. So I just went 2 turns pass flush. I install the huma reg and got 0 psi on the reg. I use a small flat head screwdriver and turn it counterclockwise and the pressure starts to climb. Just keep turning till it get to whatever you want.

 

[sonny]

might be the picture but to me those washers dont look right, maybe someone knows how to post a pic of the washer patern/sequence 

 

[Sjoerd]

 

Piston and delrin seat looks fine, no damage, scratches or jamming.

The manual of Huma says to put a bit of sillicon grease on the washers and all the o rings on the reg, so i did. Could a bit to much grease couse the problem?

Strange thing is that when i turn the reg up it sounds like it should and builds up pressure. 

The washers are stacked like in this picture, figure 7.

 

[sonny]

that was fast lol

 

[Fire_at_will]

If it was me, I would put factory reg back in and see what you got.

 

[sonny]

I still think its the gauge and Delrin washer not letting air pass to the gauge? one more suggestion and im out ,try flipping the washer under the gauge over 

 

[Fire_at_will]

I don't see the gauge and seal being an issue. They have such a big hole it would be hard to block.

 

[sonny]

it did it to me when I replaced some gauges on my impact I had to remove them and reseat them. 

 

[Rj]

Turning the reg up.is counter clock wise. Take the bottle off and turn the reg adjusment screw in a couple turns and reinstall the bottle. Or turn the screw out a turn or two. Sounds just like your out of the adjustment range one way or the other. 



Just remember you have to degas before turning the huma reg down.

 

[Sjoerd]

Problem solved!

turns out that i had to turn the reg screw a lot further out.

I had it screwed in till i felt slight resistance and then stopped, just like the manual told.
It took more than 4 full revolutions to get to 100 bar. the regulator screw is now almost leveled with the reg body at 135 bar.

But it seems to be working, overnight it held exactly the same pressure.
This weekend i will do some consistency testing.

 

[Inkedshooter]

If the new regulator isn’t out of the adjustment range try checking the FX Regulator piston comparing it to the Huma piston. Double make sure they’re the same length. It’s happened to me where I didn’t get the correct regulator. I found the Huma piston was about 1-2mm longer causing a similar issue. If I remember correctly Huma has three different power options for the regulator, maybe try stacking the washers in a different pattern?