Saturday, 06 June 2020
  3 Replies
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hello there im in need of help please first i was shooting my impact mkii power plenum .25 and heard a pop near the pellet probe then air dumped out of barrel so at this point i fully stripped gun to find which oring had failed but everything looks in tacked even the valve and stem looks ok so regassed and tryed again get maybe 10-20 shots then same again any ideas as i dont want to send it back as had problems with previous gun so not waiting months again if it goes back its for refund .
4 years ago
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#727
yes I haven't a problem buying new seal kit and fitting but the valve seat are approx £45 for impact and after spending like £1800 few months ago id like this to last a little longer just hope ill get bits sent then I can have a speedy recovery if not back to sportsman gun centre she goes
4 years ago
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#722
I had a similar problem on my Dreamline - mine was self inflicted, as I had dry fired it to death, to try and empty all the air out, I had ruined the valve seat. I could fill it to 230 and it was ok until I started firing it then it leaked about 10 bar every 2 hours.

so 1 new valve seat later and bingo, good as new.

Luckily, for me, the DL is mega simple to strip and reassemble - I doubt the impact is very hard to deal with.

O rings kits are cheap so it wouldn't hurt to swap the lot out and bang a new valve seat and see what happens - that would only cost about £30 and is bound to fix it.
4 years ago
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#718
Am not a gunsmith, only know basics. List of videos make by Ernest Rowe covering common leaks. Scroll down page.
https://airgun101.com/index.php/video-channels/fx-airguns

O rings are a law unto themselves, never managed to spot a bad one by looking at it, normally use leak spray to give me a headsup.

Does sound like a valve stem O ring......if its going up through the transfer port and down the barrel......or could be spring based. Am not a gunsmith....but you could email FX direct, they have a support section on the website.

UK has a new distributor who are now fully trained for this, maybe call them. Sportsman Gun Centre.
USA has FX USA who can help.

Unsure where you are in the world. :D

Don't panic, if you have a good description of what's going on and you have stripped the gun, am sure the part with the issue can be found and sent.

G
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