WIKA gauges on FX Maverick -- O-ring or X-ring to seal the air?

[HogKiller]

Hi again HogKiller. The following is a subject for an entirely new thread, but I'm giving you a heads up.

If you have a ZERO MOA scope rail for your Maverick, don't throw it away! Use it on your Maverick. The 20 MOA rail that came on my Maverick clearly demonstrates that FX just slopped out a placebo rail that is so geometrically out of whack that it tries to warp the entire structure of the gun when tightened down. If you have a 20 MOA rail on your Maverick and you can slide a feeler gauge between the scope rail and the supporting posts that it is screwed onto, then that is bad. Depending on whether you tighten the posts onto the gun from the botton up or tighten the rail first and then tighten the rest of the stuff down to the bottom (so order dependent) might make the rail fit flush to the posts, BUT then the structural warpage is just moved to around the plenum tube -- still trying to warp the gun. At least that's the way my 20 MOA rail was until I literally threw it in the trash. I had to look hard for a ZERO MOA rail that I bought used in order to straighten things out.

grungy

Thanks for the heads up, if and when I receive them I'll be sure to check them.

 

[Member 32425]

Thanks again cwcarrera and twoloe88. I just wanted you to know the results as a follow-up, not only to you, but to others as well. I replaced the x-rings under both of my wika 28mm gauges. As you guys said -- stop when resistance is felt. So when I screwed the gauges on, I didn't even look at the gauges because I didn't want to be influenced by possibly wanting the top of the gauges to be lined up vertically. Of course they didn't line up vertically -- no problem, I don't care -- I can read dial gauges just fine from any orientation. I did give the x-rings a very light coat of silicon grease before pushing them into position. I just got my fingers a little greasy and worked the x-rings between my finger and thumb -- just made them shiny and slippery.

I gassed up the maverick, but I didn't go out and shoot it right away. Later that night and the next day I saw that I was still losing air (tank pressure dropping). So I fired a couple of mags through the maverick and then topped off the bottle tank. No more leak. The point here is that sometimes rings need to get a little excercise before they fully seat. It's a trivial part 'till it don't work or you 'aint got one, then it's everything.

grungy

 

[HogKiller]

Thanks for the heads up, if and when I receive them I'll be sure to check them.

FX finally sent me my two rails AND as an extra bonus more cool stuff that will most definitely come in handy. I just unpacked them this am, then headed out the door, I actually only need on on my compact and that happens to be my test platform so, I'll see what gives, or warps as the case may be. Luckily in a previous life I fitted things with close tolerance so this will be interesting. I've already had the gun completely apart once and fixed stuff a previous owner had hosed big time. Broke the block even, it was that bad, didn't find it until I did the tear down.

Addendum: Mounted one of the 20 MOA Rails, note to FX, there are things called LASERS they are used for ENGRAVING, you might want to try i some times on parts that look alike. Ok snark aside. Got Mav. Compact in vice, used scope bubble to set barrel level, removed scope, checked rail to make sure it was level and square with the universe., removed old one, checked the mounting rings/surfaces for damage, garbage and level and HUH it's off, canted, ok, let's see what happens, put on new rail, feels good, started with screws, criss-crossing the tightening nice and slow, checked for fore-aft level and SWEET it's down in the front, finished torquing the screws, checked for level, it's off a touch with my Starrett precision level pushed a tiny bit and the barrel level went centered and the Starrett zeroed.

Attached the scope, checked it, it's still good. Took it out to 25 yards, ran the turret down and fired, oops, way too low, got it up to good POI and figured out I made a math error so, it's down 20 MOA. SWEET. Ran the turret up to max and back down and POI/POA stayed put.