Panthera slow leak

[Centercut]

I have a .25 Panther 600mm. Shoots well both pellets and slugs.
Noticed a slow leak, approx 20 to 30 bar overnight. Anyone else have a similar issue?
IMHO, these are a leaky gauge seal most of the time, those X rings don’t seem to be that great.
I wanted to try and reseal the gauges but they seem to be glued in there. Does FX blue loc tite in those gauges on the Panther? Maybe use a heat gun? Don’t want to break them trying to loosen them.
Thanks….

 

[Revoman]

Mike!
I have read in a fairly recent thread, that yes, FX does use some form of sealant on the threads of the gauges. Likely that some heat will be needed.
I'll search for that thread....hang lose.
mike

 

[Revoman]

Here it is....see post #9

Loctite

FX Impact M3 .25 Compac. I changed out the air gauge for the bottle to a Sekhmet digital gauge and I am noticing air loss, which didn’t happen before the switch. Should I put some blue loctite on the threads or is there something better.

www.airgunnation.com

mike

 

[Gerry52]

Did I jinx it when I fondled it last week? Everything we worked on is holding tight so far. Sorry 'bout the leak on a NEW gun. Must be frustrating. Lmk if I can help in any way.

 

[GA_LeadHead]

If you can get the gauges off, I've found that a 4x2.5mm BN70 0-ring has worked for me on my other FX gauges instead of the X-Ring.
Had a leaky gauge on my Maverick. This one worked great for me.
Link: https://www.oringsandmore.com/metric-buna-o-rings-4-x-2-5mm-minimum-25-pcs/
Hope that helps.

 

[Airgunmann]

I have used a socket to break them free on my impact then just snug them up a tad more which has sealed up my impact leaks

 

[Cousin Vinny]

You dont need heat, i replaced the bottle gauge on my Panthera without difficulty.

Remove the angled block and then slide the plastic cover off the gauge so you can grip it with a wrench.

Blammo, done.

 

[Vana2]

I have a .25 Panther 600mm. Shoots well both pellets and slugs.
Noticed a slow leak, approx 20 to 30 bar overnight. Anyone else have a similar issue?
IMHO, these are a leaky gauge seal most of the time, those X rings don’t seem to be that great.
I wanted to try and reseal the gauges but they seem to be glued in there. Does FX blue loc tite in those gauges on the Panther? Maybe use a heat gun? Don’t want to break them trying to loosen them.
Thanks….

View attachment 335427

Centercut,

Are you using the factory "slug" barrel for both pellets and slugs?
Thanks!

 

[Centercut]

Centercut,

Are you using the factory "slug" barrel for both pellets and slugs?
Thanks!

The SH shoots heavier slugs better but also shoots King Heavy pellets well. I do think the Superior shoots the Mk2 Heavy slightly better than the SH due to the slower twist rate.
SH is 1:18, and Superior is 1:24. I also tried an older Pellet A at 1:27 twist but it wasn’t as good as the Superior. Funny fact, the older Pellet A is about 1/4 inch longer than the SH or Superior.

 

[athlon_oved]

My I replaced all my M3 Wiki gauges with digital ones after having it for a month or so. None of them had any kind of sealant on the threads nor did I put any on the new ones. I've had my M3 since November 2021 and I've seen zero leaking or any kind or creep. I use 300 bar bottles only on mine. I don't know if that makes any difference, just sayin.

Gauges: https://www.amazon.com/gp/product/B096WZR73J/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

 

[Cloudrider]

I de-gassed mine for the first time to install a FX tungsten hammer. After installation I couldn't get the valve seat to seal and had a massive leak down the barrel. Apparently, I had bent the pin valve before the tungsten hammer install, prior to install I had the hammer wheel and micro adjuster on max. I'm guessing that was a no-no, and something to stay far away with the tungsten hammer installed. Currently it's on way back from UtahAir, props to their tech, only one week turnaround..
Btw, no sealant on my gauge threads, just an oring at the bottom of the block.

 

[mtnGhost]

I de-gassed mine for the first time to install a FX tungsten hammer. After installation I couldn't get the valve seat to seal and had a massive leak down the barrel. Apparently, I had bent the pin valve before the tungsten hammer install, prior to install I had the hammer wheel and micro adjuster on max. I'm guessing that was a no-no, and something to stay far away with the tungsten hammer installed. Currently it's on way back from UtahAir, props to their tech, only one week turnaround..
Btw, no sealant on my gauge threads, just an oring at the bottom of the block.

Did you have one of the first ones that didn't have that Arca rail retainer part milled out?

 

[TDK]

Both of my M3's had clear, hard sealant on the second reg gauge. It is tough enough that the gauge is pretty much useless to reinstall in a new spot unless you spend some serious effort to chip it off with a pick. I also had someone doing a gauge upgrade ask me the same question about why their factory gauge might be stuck. I suspect the factory uses the sealant to make indexing the gauge and getting a good seal easier. I've got a giant bag of x-rings and when I swap a gauge I always put in a new x-ring. Never had any leak issues without sealant. THANKFULLY the thread sealant FX uses seems to mostly stick to the gauge threads, so once you get the gauge out there typically isn't much left in the internal threads.

 

[Cloudrider]

Did you have one of the first ones that didn't have that Arca rail retainer part milled out?

View attachment 336271

Mine was not milled out! Very interested to see what I will have when it gets back tomorrow..

 

[Airgunmann]

I de-gassed mine for the first time to install a FX tungsten hammer. After installation I couldn't get the valve seat to seal and had a massive leak down the barrel. Apparently, I had bent the pin valve before the tungsten hammer install, prior to install I had the hammer wheel and micro adjuster on max. I'm guessing that was a no-no, and something to stay far away with the tungsten hammer installed. Currently it's on way back from UtahAir, props to their tech, only one week turnaround..
Btw, no sealant on my gauge threads, just an oring at the bottom of the block.

I had same problem installing tungsten hammer and 720 plenum in mk2 I had to use a slug loaded in the barrel pointed in n safe direction and fast fill with a air tank to get it to seal happens everytime I degass I think the tungsten hammer puts some preload on the hammer spring making it harder to get it to seal up I don't have any problem if I leave air in it

 

[2L8]

Did you have one of the first ones that didn't have that Arca rail retainer part milled out?

View attachment 336271

Is that a Submariner you have on my friend ?

Patrick

 

[Airgunmann]

I have a .25 Panther 600mm. Shoots well both pellets and slugs.
Noticed a slow leak, approx 20 to 30 bar overnight. Anyone else have a similar issue?
IMHO, these are a leaky gauge seal most of the time, those X rings don’t seem to be that great.
I wanted to try and reseal the gauges but they seem to be glued in there. Does FX blue loc tite in those gauges on the Panther? Maybe use a heat gun? Don’t want to break them trying to loosen them.
Thanks….

View attachment 335427

Did u get the gauges to quit leaking?

 

[Centercut]

Did u get the gauges to quit leaking?

Haven’t tried yet. Work week plus I’m shooting FT in Phoenix this weekend.

 

[2L8]

Have a great shoot Mike.

Patrick

 

[JSB18]

Let mine set over night with a full bottle. Next day the bottle was empty, but the regulator side was still at 150. The search begins for the small leak. Looks like the gauge will be the first place to remove and replace.......