Getting Ready To Install Huma reg in FX Warcat .25 Any pointers is appreciated

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RonT,

I'd definitely put some small pencil marks or masking tape precisely on your air tube and barrel where the two barrel clamps are are locked down now. Also get a measurement with a caliper on the pellet probe depth at the back of the receiver. Take the reading several times until you get some consistent numbers. The reason I'm saying this is that if you disturb the barrel clamps and they shift just a smidge and you tighten them back down in a different position other than where it originally was from the factory it'll throw your pellet probe out of it's original position and also change the linkage to the trigger. It'll even cause the bolt and hammer not to cock. Been there and done this. It gave me lots of grief with irregular/low velocities until I figured out what was going on. The pellet probe being out of it's correct position is probably the biggest thing that can cause problems.

Also take it easy with the O-rings and work them into the air tube nice and slow with plenty of silicone grease.

Hope this might help and possibly keep you from pulling your hair out, lol. Just go slow.

Jimmy 
 
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RonT,

I'd definitely put some small pencil marks or masking tape precisely on your air tube and barrel where the two barrel clamps are are locked down now. Also get a measurement with a caliper on the pellet probe depth at the back of the receiver. Take the reading several times until you get some consistent numbers. The reason I'm saying this is that if you disturb the barrel clamps and they shift just a smidge and you tighten them back down in a different position other than where it originally was from the factory it'll throw your pellet probe out of it's original position and also change the linkage to the trigger. It'll even cause the bolt and hammer not to cock. Been there and done this. It gave me lots of grief with irregular/low velocities until I figured out what was going on. The pellet probe being out of it's correct position is probably the biggest thing that can cause problems.

Also take it easy with the O-rings and work them into the air tube nice and slow with plenty of silicone grease.

Hope this might help and possibly keep you from pulling your hair out, lol. Just go slow.

Jimmy
Click to expand...

I never would have thought of any of your advice, thanks
 
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Why would you immediately change the regulator without shooting it first? If the regulator of the wildcat starts to show a wider SD just clean it, (change the orings) and relube it and it will function for many years again. A lot of people that changed out their stock regulators for HuMa's did that after a couple of years which might indicate that the regulators started to run dry or the orings might be deteriorated. The same will happen to the HuMa if you don't maintain it...

Another option is to blow some silicone oil through the regulator every couple of months/half a year/once a year (or whatever interval suits your needs). Just shoot the gun to almost empty or completely empty it, apply some silicone oil to the filling port and blow it inside while filling, it that way it'll reach the regulator for sure. If you don't empty the system you'll just blow the oil around in the cylinder or bottle. 
 
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Why would you immediately change the regulator without shooting it first? If the regulator of the wildcat starts to show a wider SD just clean it, (change the orings) and relube it and it will function for many years again. A lot of people that changed out their stock regulators for HuMa's did that after a couple of years which might indicate that the regulators started to run dry or the orings might be deteriorated. The same will happen to the HuMa if you don't maintain it...

Another option is to blow some silicone oil through the regulator every couple of months/half a year/once a year (or whatever interval suits your needs). Just shoot the gun to almost empty or completely empty it, apply some silicone oil to the filling port and blow it inside while filling, it that way it'll reach the regulator for sure. If you don't empty the system you'll just blow the oil around in the cylinder or bottle.
Click to expand...


According to the instruction manual you are not supposed to shoot the wildcat below 50 bar, it might damage the reg.
 
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Why would you immediately change the regulator without shooting it first? If the regulator of the wildcat starts to show a wider SD just clean it, (change the orings) and relube it and it will function for many years again. A lot of people that changed out their stock regulators for HuMa's did that after a couple of years which might indicate that the regulators started to run dry or the orings might be deteriorated. The same will happen to the HuMa if you don't maintain it...

Another option is to blow some silicone oil through the regulator every couple of months/half a year/once a year (or whatever interval suits your needs). Just shoot the gun to almost empty or completely empty it, apply some silicone oil to the filling port and blow it inside while filling, it that way it'll reach the regulator for sure. If you don't empty the system you'll just blow the oil around in the cylinder or bottle.
Click to expand...

Thanks for tip on how to maintain the reg, where do you get silicone oil? 

Yes there are no issues with the factory reg but I have heard the Huma is much easier to tune

and work with.
 
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Thanks for tip on how to maintain the reg, where do you get silicone oil?
Click to expand...

HuMa sells silicon oil but they only started selling after I already bought another brand. I have my silicon oil from microlubrol (it's called armasil) but there will be other products that do the same thing but I don't know those brands by heart. Just make sure it's not petroleum based but pure silicon oil. Petroleum will deteriorate the orings.

Regreasing the regulator is a longer lasting solution but this is in most cases more cumbersome than blowing some oil through it. With bottles guns with a build in valve in the bottle or cylinder guns with removable cylinders it's very easy to apply the oil. Just unscrew the cylinder or bottle and degas the gun (aka the regulator plenum), apply two small drops of silicon oil in the nipple that's used to connect the bottle/cylinder to and screw the bottle or cylinder back on and it will blow the oil through the regulator. If the plenum is filled with air and you apply the oil to the foster fill nipple you'll most probably blow the oil to the inside of the cylinder/bottle. It will eventually go through the regulator but most of it will stick to the inside of the bottle or cylinder.

Keep in mind that the regulator doesn't have to swim in oil. Applying one or two drops every couple of thousands of shots is more than enough, even 1 in 10000 is sufficient in most cases.
 
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