A month or two ago my Wildcat started losing air from where the air chamber screws into the block. I could feel air leaking from that area, so assumed it was something simple like an O-ring. So a call to FX and I got a couple of the O-rings under warranty and ordered a complete O-Ring kit just in case. Fast forward two months and I've been busy doing other things and this evening I decided to finally take a look at it and swap out the O-rings. Changed both the rings in that location and it was still leaking air. Upon closer inspection the O-ring isn't the issue, but I can see a tiny, hairline crack in the threads on the block. 
Anyone ever had this issue? If so, what could cause such a problem and how was FX about repairing it? I'm kicking myself now for procrastinating in taking a look at it.
Anyone ever had this issue? If so, what could cause such a problem and how was FX about repairing it? I'm kicking myself now for procrastinating in taking a look at it.
