ball bearing in the dump chamber

[skyless]

I have read a few things about how to make a classic valve more efficient. I have thought about getting it on a lath and removing the weld holding the powertube on but i dont want to ruin my valve trying that. So the next would be to put something in the valve to make the dump chamber smaller, I read that you can put ball bearing in there to do it. Do i just put them in the little hole that i can see when my on/off is removed? Or do they goin in throught he power tube front? I dont want them to be falling out at random either. Anyone fill me in on this technique?

[mostpeople]

No

[flyingpootang]

Using a devoulmizer in the dump chamber is the way to go. Are you trying to make it more efficient on 12gs?

[skyless]

Using a devoulmizer in the dump chamber is the way to go. Are you trying to make it more efficient on 12gs?
Yep that is the plan.

[athomas]

A ball bearing in the front air chamber could become a projectile. It probably wouldn't come out past the bolt stem, but it could cause operational issues if it gets in the powertube.

I would use a ring of some sort if I were making the volume smaller. Make it to fit inside the chamber and put it in through the front once you have the powertube removed.

[MANN]

just get a pre welded one, and unscrew it. It takes a little muscle, but is doable.

[El Camino]

just get a pre welded one, and unscrew it. It takes a little muscle, but is doable.
Then what would you put in it if you have one that unscrews?

[flyingpootang]

Then what would you put in it if you have one that unscrews?

A stack of brass or stainless washers would work. Any other metal may create corrosion/rust

[MANN]

A stack of brass or stainless washers would work. Any other metal may create corrosion/rust

Yep. What ^ said.

[Smoothice]

How do you tell if you have a "pre welded" valve?

[skyless]

just get a pre welded one, and unscrew it. It takes a little muscle, but is doable.
I've been looking for one without luck. I saw a hypervalve pass through which I believe has a reduced chamber already, but no lvl 5 or 6 yet.
Any chance you have any Mann, when u use the word "just" , makes them sound easy to come by.

[DevilMan]

I've got one... :ninja:

But it's in Cali and I'm not...

DM

[MANN]

I've been looking for one without luck. I saw a hypervalve pass through which I believe has a reduced chamber already, but no lvl 5 or 6 yet.
Any chance you have any Mann, when u use the word "just" , makes them sound easy to come by.

I use to have a few, but sold them. I am not sure on how common they are. All xvalves unscrew.

[MANN]

How do you tell if you have a "pre welded" valve?

You can see if the edge is welded or not. That is the only way I know of.

[ajnin]

i have three 6.5 valves.... one day i will get some washers and do some tests...

[skx762]

Could somebdy post a picture with the area circled or an arrow pointing to where I shoud be looking?

I have two older mag valves and can't see any welding on either one. Since they are only couple hundred apart in seriai number I either have two unwelded ones or am not looking in the right spot.

[flyingpootang]

In the first pic shows the area you should be looking at. Us a magnified glass and look in between the 2 halves. If yours is laser welded you will see a constant silver valley in between the 2 halves
Here is a pic of my AIR 68 valve #CF07798. It was only soldered or welded about 1/4" around the power tube which I cut out with a hack saw very carefully, then heated up with a torch on low heat to break the Loctite. I'm going to use 5-6 3/8" nylon fender washers for the devolumizer. Hopefully I will be able to use 12g and compressed air on my Luke's RNC PumpMag

http://i537.photobucket.com/albums/ff333/flyingpootang/StillCap0012.jpg
http://i537.photobucket.com/albums/ff333/flyingpootang/StillCap0014.jpg
http://i537.photobucket.com/albums/ff333/flyingpootang/StillCap0013.jpg
http://i537.photobucket.com/albums/ff333/flyingpootang/StillCap0010.jpg

[Spider-TW]

In the first pic shows the area you should be looking at. Us a magnified glass and look in between the 2 halves. If yours is laser welded you will see a constant silver valley in between the 2 halves
Here is a pic of my AIR 68 valve #CF07798. It was only soldered or welded about 1/4" around the power tube which I cut out with a hack saw very carefully, then heated up with a torch on low heat to break the Loctite. I'm going to use 5-6 3/8" nylon fender washers for the devolumizer. Hopefully I will be able to use 12g and compressed air on my Luke's RNC PumpMag

With a ULT yet! Nice setup.

I bet that sofa sized valve in the third picture is heavy! ;)

[Frizzle Fry]

I bet that sofa sized valve in the third picture is heavy! ;)

It's loveseat sized; the middle model. Cuts off a few dozen pounds of stainless steel. Truly "ULE".