Tuning Fx impact m3 1st regulator problem

[mubhaur]

Hi
There is a problem with M3 1st regulator of a friend who lives in an other city so I can't inspect it.

The problem is that when air is filled in the bottle, the regulator goes as high as the air is filled in the bottle.

In order to make the 1st regulator work, he needs to remove the bottle and then re attach.

Then it works fine until he needs to fill the gun again.

He has replaced all O rings of 1st regulator but in vain.

I though that someone might had faced such an issue and the fix would have been found which I can recommend to my friend.

Advices are welcome.

Regards,

Bhaur

 

[FX-USA]

Hi Mubhaur,

If you don't get the information you need please send us an email at [email protected]

Regards,
FX Airguns USA

 

[Vetmx]

Sounds like he has it set right on the edge of it going into the bypass mode. Verify he has the right amount of washers in there and their orientation/stack height.

 

[mubhaur]

Hi Mubhaur,

If you don't get the information you need please send us an email at [email protected]

Regards,
FX Airguns USA

For some unknown reasons when I send you an e mail, it bounces back and doesn't reach you.

Looks like you accept e mails only from US based users.

Regards

 

[FX-USA]

For some unknown reasons when I send you an e mail, it bounces back and doesn't reach you.

Looks like you accept e mails only from US based users.

Regards

Hi Mubhaur,

Sorry there must have been a typo. The e-mail is [email protected]

Regards,
FX Airguns USA

 

[Airgunmann]

I had same problem with a amp reg with the plastic piston seemed to clear up after changing to the brass piston

 

[mubhaur]

I had same problem with a amp reg with the plastic piston seemed to clear up after changing to the brass piston

Yes. We just installed a bit thicker O ring on the head of piston like 4×1.62 and the result is better.

 

[JoeBio]

I'm glad you brought up this issue as I was just looking for posts reference a Mk2 Impact with the exact same issue. Thanks!

 

[Ca_Varminter]

It sounds like the pressure is bypassing the inner rear O-ring..
It is the O-ring that sit in the Brass collar the the piston rides in.....
It could be debris... or it could be a bad O-ring...
This O-ring what keeps the Bottle/fill pressure from bypassing the Reg!!!!

 

[mubhaur]

I finally got the gun in my hands.
Inspected carefully and found that the groove of O ring 4x1.5 inside the regulator body is not in good condition.

Every time when that O ring is replaced, the O ring gets scratched that ultimately causes leaking from breathing hole.

Some other issues too.

Just to examine which parts are bad and which are good in that M3, I replaced the regulator body and adjuster screw with my M3.

The problem of faulty M3 resolved.

When I installed the removed two parts in my gun, it started showing bad behaviour.

So I understand that the culprit is the 1st regulator main body and adjuster screw.

I have wrote it to Johan and hope that he will send these two parts for the final solution.