FX Impact M3 reg 2 matches reg 1 pressure

[kernel32]

Rifle was working well for a yr and half. Put it away for a few weeks. When I went to fire I noticed reg2 pressure increased from normally set 130bar to 160bar, reg 1 is 180bar.

Shooting first five shots were low and slow but reg 2 returned to normal, 130bar, while shooting and groups tightened back up and fps was normal. Understandable as hammer was set for 130bar. So figured reg 2 had developed a creep. Put the gun back on shelf for a week and now reg 2 matches pressure on reg 1, 180bar.

Do I have two bad pistons? Just like that?

Any info would be appreciated.

-chuck

 

[mubhaur]

Rifle was working well for a yr and half. Put it away for a few weeks. When I went to fire I noticed reg2 pressure increased from normally set 130bar to 160bar, reg 1 is 180bar.

Shooting first five shots were low and slow but reg 2 returned to normal, 130bar, while shooting and groups tightened back up and fps was normal. Understandable as hammer was set for 130bar. So figured reg 2 had developed a creep. Put the gun back on shelf for a week and now reg 2 matches pressure on reg 1, 180bar.

Do I have two bad pistons? Just like that?

Any info would be appreciated.

-chuck

I would suggest to rebuild both the regulators. Each regulator has an effect on the other. This seems illogical but it happens.

Bhaur

 

[kernel32]

I would suggest to rebuild both the regulators. Each regulator has an effect on the other. This seems illogical but it happens.

Bhaur

Yep, replaced orings on adjuster screws and polished Delrin pistons etc. took most of the issues out but delrin pistons where dimpled badly so I couldn’t get all the creep out. Fx via UTA is sending me two new regs. Awesome support!

Thanks Bhaur for the assist and. Great YT channel btw.