Leaking FX repairs

[crowbuster]

C'mon I know there's a few FX owners on this site and I'm probably not the only one whose gun has developed an air leak. Any suggestions on who can replace the seals or is it an easy DYI repair? I contacted Lewis but he wasn't interested, and the supplier is a long way off in Melbourne. Any help appreciated.

thanks
crowbuster

[JD]

Where is it leaking from? And what FX have you got?

If it's only a seal it wont be too hard to replace, if something has actually broken then it might get a little trickier.

It's pretty easy to find exploded diagrams of the airguns, and/or photo tutorials on how to replace various seals but 90% of the time if you are mechanically minded it's a pretty straight forward thing and you can just work it out as you go. PCP's aren't usually very complicated things, but it depends on exactly what you have got. Few FX's have a regulator so that simplifies it a little bit too.

Chances are it's probably just a bit of grit caught in an oring anyway. Clean, lube and you are back in action. Otherwise take your buggered oring to an oring shop and get a replacement. Might cost you 20c. Airgun manufactures aren't in the business of creating weird obscure orings just to be difficult, so you will find one to fit.

Give us some more information. If you plan to do it yourself you could also post on the Yellow Forum (network54) as there are many airgunsmiths on there that are always ready and willing to offer advice and help and plenty of people who will have worked on your exact gun. I'd bet you could fix it yourself, if you do just make yourself a nice clean area to work in and have the right lube on hand (remember petrochemical lubes and high pressure dont mix) and work methodically and slowly and take notes as needed. A handy thing for any airgun disassembly, repair and reassembly is a chronograph though, so you can set and tune your velocities once you have fixed the leak.

Cheers, JD

[makrand]

Here is a specific FX forum.
http://www.fxoc.info/index.php

[RayG]

Crowbuster, When you are on the FX owners website search for the post "Official FX Diagrams",these were posted by the site admin "Polar Wolf"
Should do the trick.

[crowbuster]

Thank you for those very helpful replies. Mine is the FX Cyclone in .22 with the walnut stock. It has the threaded-in pressure gauge, & I have already done the obvious things like thread sealing tape where this screws in, but alas it still goes flat after a day or two so I'm suspecting a buggered seal somewhere inside. I will check out that FX site for a diagram (the user manual that came with the gun is a joke), and see if a repair is within my abilities. What is a suitable lube to use other than oil for these PCP AGs?

cheers

crowbuster

[RayG]

It has got to be a leaking fill port "o" ring or another "o"ring behind the air bottle screw in mount in the action block. It becomes a process of elimination,working your way back through the action. Go for the fill port first,it usually can be crap around the 'o' ring. The Cyclone diagram on the FX owners site is a good one it will help.

[crowbuster]

Just an update & thanks again to everyone for their helpful replies. I checked out that FX site & printed off the cyclone schematic, and this instilled me with the confidence to do some dismantling. Long story short, I found some crap which looked like dried locktite or similar, where the cylinder screws into the action. After a good clean out and regreasing with silicon grease I put it all back together & the problem seems to have been fixed. With a few tools & a careful approach it wasn't really that hard.

cheers

crowbuster

[RayG]

Good one CB, happy shooting.
Ray.

[GIJ]

Nice one CB, my gladiator has a slow leak which i will get round to fixing one day, now that your win has inspired me.