.30 cal.

Monkeydad1969 · February 17, 2016, 09:58:52 PM

Quote from: Trophyhunter49 on February 17, 2016, 09:48:44 PM

I'll be giving you a call to get this settled!

Trophyhunter49 · February 19, 2016, 10:19:43 PM

Happy Happy Happy !!!!! Well I got my Don Cothran valve and stainless tube in today!! Man I love it when I boxes in the mail with air gun parts in them !!!

Here a couple of pics of the NEW tube with the valve already installed!

tinker · February 20, 2016, 02:02:38 AM

Nice Mike!
If that came in the mail I would taken something apart just to test the valve and air tube!

Glen

Monkeydad1969 · February 20, 2016, 03:22:42 AM

Very nice.

Paul · February 20, 2016, 03:41:57 PM

looking forward to the finished article and the chrono test.

Trophyhunter49 · February 20, 2016, 05:29:27 PM

Quote from: tinker on February 20, 2016, 02:02:38 AM
Nice Mike!
If that came in the mail I would taken something apart just to test the valve and air tube!

Glen

I did ! I tested the set up with a a breech and barrel . I put it all together and filled it with 3500 PSI and let it sit for and hour and NO leaks were found . Then I degas it and set it aside untill the rest of the parts get here. I should have told this at first ,it did not come with the fill adapter! This pic. was made just before I set it aside!! Don always test his parts before shipping them too !!

1377x · February 20, 2016, 06:29:26 PM

I read somewhere that the p-rod fill adapter fits and has a lower profile

Trophyhunter49 · February 20, 2016, 07:29:36 PM

Quote from: 1377x on February 20, 2016, 06:29:26 PM
I read somewhere that the p-rod fill adapter fits and has a lower profile

Yes Sir, The PROD and the Disco have the same diameter , Also same as the 22XX tubes! That's what makes it so easy to build an inexpensive PCP !

WyoMan · February 21, 2016, 04:17:04 AM

Hey TH...
Could you use one of these?...a Wyo-port:

Fits in the big valve like this:

Is just marginally smaller than .250" i.d. The length will be too long but you can cut (sand) to fit:

pm me if you can use one and I'll mail it with a couple extra o-rings - guaranteed not to leak - sort of

Good luck and keep posting the progress

Monkeydad1969 · February 21, 2016, 04:21:00 AM

Hey Wyo,

If you have anymore left, I'd like to buy one for my valve. It's the .250 TP.

Joe

WyoMan · February 21, 2016, 04:32:11 AM

Quote from: Monkeydad1969 on February 21, 2016, 04:21:00 AM
Hey Wyo,

If you have anymore left, I'd like to buy one for my valve. It's the .250 TP.

Joe

pm sent - thanks

Gippeto · February 21, 2016, 10:20:42 PM

Those around 5/16" length + the orings? 010 presumably?

Thx

Al

WyoMan · February 22, 2016, 01:24:34 AM

That's pretty close, Al
Sleeve is .270" long but I went with metric o-rings - 1.5mm x 6.5mm. They have a larger i.d. and slightly smaller o.d. than the -010...some room for the compression.
The oal is .388". Figuring the o-rings can compress about 50 thou gives .338"...
Cothran c-b .150
Tube .063
Breech plus BBL c-b .125

Sound like it's in the ball park?
thanks

Gippeto · February 22, 2016, 03:51:13 AM

Give or take...I made up four "tubes" and put a couple o-rings in the package with them. Mike will have to take them down to correct length.

Al

WyoMan · February 22, 2016, 04:12:56 AM

That's the best way...take down to fit. We don't know if all the valve / tube tolerances will be the same so there are too many variables.
They certainly aren't a "one size fits all" but the o-rings do allow about a .040" range +/- ...so we're playing horse shoes instead of darts

thanks