Just got back from a bad gun day-Please Help.

[MFM-70]

The day started at 44 degrees and I started freezing my P/T o ring right away.

Made some adjustments but it never went away until the temps reached 53 deg or so.

I am running an expansion chamber but still get freeze up.

Isn't there an adjustment that can be made by changing the power tube spring?
I remember many years ago my buds mag kept freezing in the middle of summer and we were told by AGD to put in a shorter or longer spring (I forget which) and it went away.

I have many length springs in hand.
Any help with this?
Not sure if I need shorter or longer or if it will even help.

pics of my setup can be seen here:

http://www5.snapfish.com/thumbnailshare/AlbumID=3772669008/a=26182667_26182667/otsc=SHR/otsi=SALBlink/COBRAND_NAME=snapfish/

I run Co2 and will have to stay that way for a while.

[Smoothice]

Do you have an anti-siphon tube in your co2 tank?

If not they are usually under $10 to have installed. Bring in your marker and tank when you do it so they can do a proper install.

[MFM-70]

Do you have an anti-siphon tube in your co2 tank?

If not they are usually under $10 to have installed. Bring in your marker and tank when you do it so they can do a proper install.

No, I do not.
I will look into this.

Any other ideas on the P/T spring?

[Coralis]

I really dont know about the power tube spring preventing the power tube oring from freezing but there are some other tricks , a good expansion chamber , anti siphon tube in your bottle, using a remote line, using an angled ASA adapter , not pointing the barrel of gun down if you are using a back bottle adapter so you dont pour into your expansion chamber, using a palmer stabilizer, soaking your power tube oring in oil the night before you go play so that it doesnt absorb liquid CO2 and swell as easily.

[athomas]

Its like I mentioned in your other thread, you are pouring liquid CO2 into your gun by having it horizontal without an anti-siphon. A different powertube spacer isn't going to help. You have to keep the liquid out. The expansion chamber only helps against CO2 condensation caused when the CO2 loses pressure as it exits the bottle valve and reheats as it regains its pressure. The expansion chamber can help with the condensation, but not with a lot of liquid. With too much liquid, it just can't conduct enough heat fast enough to bring the liquid CO2 back to a gas quickly.

[MFM-70]

I really dont know about the power tube spring preventing the power tube oring from freezing but there are some other tricks , a good expansion chamber , anti siphon tube in your bottle, using a remote line, using an angled ASA adapter , not pointing the barrel of gun down if you are using a back bottle adapter so you dont pour into your expansion chamber, using a palmer stabilizer, soaking your power tube oring in oil the night before you go play so that it doesnt absorb liquid CO2 and swell as easily.

Sounds like the only thig I do not have on this list is the anti siphon tank.

Thanks

[XM15]

A old school trick to keep liquid out of your valve is to coil your airline 1 or 2 times between the asa and the expansion chamber and/or between the valve and the expansion chamber.

[classic68]

I used to run a remote line to an asa to an expansion chamber. I would run the line up through my coat and through my sleeve to my asa. I made sure my bottle was up under my coat too. My body heat helped out a bit. I know some guys who would use those instant heat packs and wrap them around the back of their valve. They said it helped a lot. ROF makes a big difference too. I used to keep my ROF slower during cold spells. I hope this helps.

[athomas]

Sounds like the only thig I do not have on this list is the anti siphon tank.

Thanks

Not quite. Your angle may not be enough to keep the tank valve above the liquid level in the bottle. If liquid is above the valve, then it gets pushed into the air line and up into the expansion chamber.

[Frizzle Fry]

First off find the longest piece of steel braided line that you can, a couple feet or so. Run it to your valve, coil it around your powerfeed a few times, then attach it to a foregrip expansion chamber. Run a line from said expansion chamber to your ASA, and use an anti-siphon tank. If you wanna get real fancy, you can install micron filters at each fitting.

This has been my Minimag setup for... ever.

[MFM-70]

First off find the longest piece of steel braided line that you can, a couple feet or so. Run it to your valve, coil it around your powerfeed a few times, then attach it to a foregrip expansion chamber. Run a line from said expansion chamber to your ASA, and use an anti-siphon tank. If you wanna get real fancy, you can install micron filters at each fitting.

This has been my Minimag setup for... ever.

Thanks All.
Would it be safe to say that if I went back to a vertical bottle setup with a vertical x-chamber I would not need to run anti siphon?
I could easilty make adaptor to make this happen.

[badpennny]

Thanks All.
Would it be safe to say that if I went back to a vertical bottle setup with a vertical x-chamber I would not need to run anti siphon?
I could easilty make adaptor to make this happen.

If you decided to put your bottle in a vertical setup, you wouldn't want an anti-siphon tank, as it would draw in liquid CO2 in that orientation. The anti-siphon is a good idea if you are keeping the tank horizontal. Otherwise, it can have the opposite effect. That said, a vertical bottle with some kind of expansion chamber in-line will almost definitely be an improvement.

[Frizzle Fry]

a vertical bottle setup with a vertical x-chamber

I'm having trouble imagining what you're describing...


Either way, when run vertically an anti-siphon doesn't work. It's got to be horizontal, or within about 45 degrees of horizontal otherwise it'll actually siphon.

[MFM-70]

I'm having trouble imagining what you're describing...


Either way, when run vertically an anti-siphon doesn't work. It's got to be horizontal, or within about 45 degrees of horizontal otherwise it'll actually siphon.

I will attempt to describe my setup change as planned:
Verticle bottle screws directly into this:

http://store.airgundesignsusa.com/index.cfm?fuseaction=catalog.prodInfo&productID=87&categoryID=16

Then run hose from adaptor into the bottom of my x-chamber mounted with another vert. bottle adaptor, mounted in front of the bottle.
(I will be making a custom extension block to acheive this-Essentially using the x-chamber as a front handle)

Then I will run a hose from the top of the x-chamber into the mag valve.

[VailSkibum]

I agree with Coralis. If you have a back bottle pack/harness, a remote set-up is an inexpensive way to go.
A better way to go is the Palmer's Sideline Stabilizer, IMHO. Its just another regulator that screws into your valve. I've NEVER had any prob. w/ liquid getting into the valve. If you want to keep a foregrip, replace the X-chamber w/ the Palmers Male stabilizer.
Here's a link:

http://www.palmer-pursuit.com/online-catalog/stabilizer-sideline.htm