FX FX Impact M3 - Regulators not working

[6gun]

Thank you very much

No problem. It seems like the delrin style amp pistons don't like higher pressures, which is probably why fx went brass piston like huma.

 

[CoyoteGod]

I received my oring kit on Friday. Planning to attempt the rebuild sometime this week. Anything I should know? How long would you estimate the rebuild to take?

Impact rebuilds aren’t bad. Can go quick but recommend taking your time. Measure your valve rod distance for your gun. make sure you note washer stack sequence for regulators. Take your time with the O-ring placements so nothing gets clipped. Use only brass or plastic picks so you don’t scratch sidewalls. Stay away from steel picks. Top down disassembly so you don’t lose your place. When putting back together only hand tight be careful of aluminum parts With steel screws. Be up and shooting in no time.

 

[6gun]

Impact rebuilds aren’t bad. Can go quick but recommend taking your time. Measure your valve rod distance for your gun. make sure you note washer stack sequence for regulators. Take your time with the O-ring placements so nothing gets clipped. Use only brass or plastic picks so you don’t scratch sidewalls. Stay away from steel picks. Top down disassembly so you don’t lose your place. When putting back together only hand tight be careful of aluminum parts With steel screws. Be up and shooting in no time.

Watch out for the barrel block screws in fine thread and stripping like coyote said. A torque screwdriver is almost a must, especially if you are fighting a barrel tensioner, M3 and older top strap and rail alignment can be a pain in you shoot longer ranges and it's slightly out of alignment. I just replaced mine with a 1 piece top rail and re machined my trigger block for a larger screw after making a 300 dollar lapse in awareness of my ability to spin an Allen key.

If you don't screw those up like I did, the rebuilds are cake and the hammer weight would be the only pain. If you 3d print it gets marginally easier with the file for that special little tool for the valve rod being available free online, just find some smooth jaw pliers or modify vice grips per Ernest rowes recommendation.

The impact is an in depth teardown that seems scary but isn't. It's not as bad an an improperly deburred mrod tube before you figure out what is cutting all your orings.

 

[CoyoteGod]

Watch out for the barrel block screws in fine thread and stripping like coyote said. A torque screwdriver is almost a must, especially if you ar fighting a barrel tensioner, M3 and older top strap and rail alignment can be a pain in you shoot longer ranges and it's slightly out of alignment. I just replaced mine with a 1 piece top rail and re machined my trigger block for a larger screw after making a 300 dollar lapse in awareness of my ability to spin an Allen key.

If you don't screw those up like I did, the rebuilds are cake and the hammer weight would be the only pain. If you 3d print it gets marginally easier with the file for that special little tool for the valve rod being available free online, just find some smooth jaw pliers or modify vice grips per Ernest rowes recommendation.

The impact is an in depth teardown that seems scary but isn't. It's not as bad an an improperly deburred mrod tube before you figure out what is cutting all your orings.

Exactly right. This is great advice.