New Impact with a air leak

[drumie]

I just got my new FX Impact MK2 and it had a air leak when I received it. I finally found out where it was leaking, where the regulator is clamped into the receiver.

I sent a email into FX USA about it but thought I would ask here. I would rather fix it myself than to send it in, but I haven't been able to find a good video on how to fix it. Anyone have tips or a link to a video? Thanks.

 

[tibor]

brand new ..like in just got it...that sucks.

I thought dealers tested them..ok maybe not all..but jeez

 

[MScottLeeman]

At that rifles price range,you would think QC woulda caught that.

Eh...what would I know.

Mike

 

[heavy-impact]

That's the "air tube" not the regulator and it's a simple fix. Here is a link to the FX Master Class videos for the Impact. https://www.youtube.com/watch?v=bSscQBR6hWA&list=PLkrNvYFsp-t3NyUAi8sQicZBIVnQG_--O

 

[ImpactX]

There are 2 o rings on the black housing tube that slides into the receiver. Take the gun apart and check for damage o ring and replace it. Easy fix. No need to waste time and money to ship it back for repair. O ring at your home depot cost like $1-2.

 

[cfs916]

Watch FX masterclass on YouTube to disassemble the rifle. It might be the 2 orings that’s on the valve tube. 

 

[drumie]

Thanks guys. I will give it a try. I already purchased orings for this gun.

 

[Airgun-hobbyist]

Thanks guys. I will give it a try. I already purchased orings for this gun.

Also, there might be a sharp edges from the machining process where the plenum slides into the receiver, and it could be cutting into the O-rings. If it is, it can be fixed by polishing the edges of the machined grooves with 600 grit wet/dry sandpaper, just enough to make the corners rounded and shine. 

 

[drumie]

Ok I got the gun apart, I saw those videos before but wasn't sure I wanted to tackle it. Now I need a little more help. The one oring that looks bad I dont think I have to replace it. Can anyone tell me what size this one is?

It is the one that the 8mm bolt goes thru. The other 2 in the picture didnt look bad but I took them off, cleaned it up and put new ones on it.

 

[Airgun-hobbyist]

Here's a great link to the Impact's O-ring list and suppliers.

https://www.airgunnation.com/topic/impact-o-ring-list-corrected-with-links/

 

[drumie]

I saw that post. I think what I need is part A22, rubber steel washer M12 part #11507. I think I might need to get that right from FX.

 

[heavy-impact]

I saw that post. I think what I need is part A22, rubber steel washer M12 part #11507. I think I might need to get that right from FX.

No you need B24, 9 x 1.5 nbr 70 o-ring. The bonded washer you mentioned is behind the bottle adapter.

https://fxairguns.com/wp-content/uploads/2019/08/impact-190823.pdf

https://fxairguns.com/wp-content/uploads/2019/08/impact-MkII-190802.pdf

 

[drumie]

https://www.theoringstore.com/store/index.php?main_page=product_info&cPath=368_12_38&products_id=1851

Is this what I need?

 

[heavy-impact]

Yes, that is the part indicated in your picture.

 

[drumie]

Thanks guys. You have been a ton of help.

 

[drumie]

I found out the oring that I needed was a 6mmx1mm. I found one in some of the oring packs I had from some airguns. I got the gun back together without any problems. I tested it for leaks over night and it held air great, no leaks. I got to put some round thru it and it is shooting great again. 

 

[gixxer3000]

I found out the oring that I needed was a 6mmx1mm. I found one in some of the oring packs I had from some airguns. I got the gun back together without any problems. I tested it for leaks over night and it held air great, no leaks. I got to put some round thru it and it is shooting great again.

I have no idea why you have an oring there on your gun. There was not one on my original MK1, and there is not one on the upgraded valvetube im running now. Also, it´s not on any diagrams i have ever seen. "Secret MK2 option" ?

I also fail too see what function it could have as the large oring/xring inside the tube does the sealing on the inside ???

But glad you got it fixed.

 

[Jlacouturec]

its incredible to pay 2000+ for a rifle that have so many problems.... i also had a very bad experience with a brand new MK2.....



https://www.airgunnation.com/topic/fx-impact-mk2-mk2/

 

[TylerE.]

I’m not sure how the air would have escaped where the picture indicated with that oring either. The air would still have to pass the two other larger orings to leak out. I think you solved your problem by cleaning and replacing the outer two rings. Either way, glad you got it fixed and now know how to work on it yourself. Well done, Tyler

 

[drumie]

I'm not sure if that small oring was the problem or not. I just replaced that one and the 2 on the valve tube while I had it all a part just to be safe. All I know is it didn't leak after is was all back together. I guess that is all that matters now is that it is fixed and shooting great.