PP700 adventure started(Artemis PP700s-a)

[rumbleUU]

   I was so excited that I braved the heat after my radiation to try this thing out. 

I was really bummed when it shot 16cm left of the bull at 5m.  But I went inside and pulled the barrel and put it back on and snugged things up and this was my result.....10 shots with Quiang Yuen training pellets at 10m rested with the iron sights.  The circle is 1”. Or about 25.5mm or so.  I shot ten getting sighted in and ten on target so that’s 20 shots from 190bar to 140bar.   Not too bad out of the box.

looks great, keep shoting that little pistol...

[rumbleUU]

What is the size of the o-ring mod that was posted in Facebook groups where the white plastic washer is to get it sealed?
Also what size are the big orings inside the tube, are they supposed to be 27x3.1?

Mine stared to leak in front big time, so I tried the green spare ones that came with the pistol, they are even worse, So i hade to relube the black one that was inside stock, and screw the frontcap on the tube, now it seems to keep tight... I have to order new ones, but the spare green one dont work, thay feel a bit to small at the end when I screw the frontcap on, I can feel it in the end that it goes to light, I would like a small bit wider orings, any suggestions? 

Other wise my tube inside seemed nice and shiny, so nothing wrong there.. and the black stock oring seemed also a little bit bigger(wider) then the spar green ones..

[rumbleUU]

EDIT: I did measure the green orings, they are 21x3,08, So I think maybee 21x3,2 or 21x3,3 would be better....

[nervoustrigger]

EDIT: I did measure the green orings, they are 21x3,08, So I think maybee 21x3,2 or 21x3,3 would be better....

FYI, I located my spare O-ring kit and measured the large O-ring for comparison.  I agree with your assessment that the closest nominal metric characterization is M21 x 3. 

(How I arrived at that:  I measured 1.070" OD x 0.127" cross section.  Metric O-rings are dimensioned by the ID so the relevant dimensions in inches are 0.816" x 0.127" or metric M20.7 x 3.2mm.  So the nearest metric would be an M21 x 3.)

The nearest equivalent SAE is a -211.  Converted to metric, it's 20.2 x 3.5.  If the metric spare seems too thin, perhaps that would be worth a try.

[rumbleUU]

Mine still leaks, like 10 bars in 24 hours, not OK...
Disambled the pistol today, cleaned everything, polished where the regulator goes in the block, just in case..
Replaced the orings in tube with some 20x3.5mm I had, put an extra oring outside where the white plastic washer is(the facebook mod).... Put all together now, filled it to 100bar, will let it be there for 1 hour, then fill it to 160-180 bar, then keep my fingers crossed..

[YEMX]

Well, I did a thing... 

I went ahead and bought the tools available from TR Robb, along with a new fill probe.  Hopefully they've corrected their design by now and I won't have any issues like others have had.  The tools I bought are a wrench for the gauge, and a spanner for the barrel end cap.  I bought the tools because a few of my friends are considering getting one of these pistols, and I'm considering getting another one, so the tools will get a work out... 

[Wayne52]

I really like the probe that I bought from TRRobb it fits perfect on mine but some say I got lucky because a lot of people had bad luck with them.  Mine is a Airmax MKII and I honestly think the probes that were supplied with a lot of the older ones weren't very good brass cause mine got chewed up fast.  I've got the SPA M16 that also came with a brass one and it still looks fantastic!

[Rallyshark]

Mine still leaks, like 10 bars in 24 hours, not OK...
Disambled the pistol today, cleaned everything, polished where the regulator goes in the block, just in case..
Replaced the orings in tube with some 20x3.5mm I had, put an extra oring outside where the white plastic washer is(the facebook mod).... Put all together now, filled it to 100bar, will let it be there for 1 hour, then fill it to 160-180 bar, then keep my fingers crossed..

Did you replace or clean the small one that is held in place by the brass screw in the end cap of the cylinder on the muzzle end?  The one that is at the fill port is what I'm talking about.  A lot of people have had that one leak due to debris or a cut in it from the factory. 

[Wayne52]

Probe orings go bad on them, I've replaced one on my PP700SA and one on my SPA M16.  Those little o rings take a beating, pretty common cause of leakage.

[rumbleUU]

Yes, I did clean that small one where you put in fillprobe also...
Did check Today seems rocksolid, keeps the air inside now 

The only problem now is that I dont know wich one was leaking, but that doesent matter, As it is just like 4 orings to replace next time.
It can also bee the small 15x1.5 oring (facebook mod) that I put in, I dont know wich one did it, but that extra oring where the white plastic washer is doesnt harm anyway..... I still think it was one of the big orings inside the tube, Now I know that a 20x3.5 is the one for my  tube...

Also removed that transferport short screw, repaced with a modded longer one and an oring on top.

It does seem that my breech is tight enough, no air-leakage there, thats a good thing, maybbe they fixed it in later models ?, mine is a few month old...

Now lets start shooting the little pistol, did increase the regulator pressure a bit, will decrease hammer tension and see how many shoots I get, will do that later as I am busy this weekend..

Will try to find some tools to this little pistol also, makes it easier to disamble that way, will check my local store first..

[rumbleUU]

I know for sure the valvestem(its called valve core and firing pin in the part list) is the same in PR900W, CP1 and the CP2, but is it the same in the PP700?

[Rallyshark]

I know for sure the valvestem(its called valve core and firing pin in the part list) is the same in PR900W, CP1 and the CP2, but is it the same in the PP700?

Hmmm, I can't answer that question, sorry    Wayne?  At least you got that leak taken care of.  Now, you can go enjoy shooting the little bugger

[Unk]

   Just tried my fill probe with my 13cu ninja bottle with a Ninja remote with microbore whip and slide check.  I have upped the reg to 2200 psi for my Maximus.

  The fill probe just Barely fits, have to really jam it in and I had to get the pliers out to remove it....... will have to turn it down a Thou or so.

[YEMX]

Question:

What tool did y'all use to take this apart:

[Wayne52]

I order 2 sets of the McMaster Carr washers for my SPA M16 regulator and still never used them.  Heck the darned thing is shooting so good the way it is.  On my PP700SA I never took out the regulator, I only adjusted it to where I wanted it and it's been shooting great ever since.  They had the hammer spring adjusted way to tight from the factory also, I backed it off quite a bit gave the reg about 1/4 turn and it's still doing 16 fpe with the JSB18.13's.  People have said the regulators on these guns do work better for the higher power rather than low power.

[BSJ]

Question:

What tool did y'all use to take this apart:

https://www.midlandhardware.com/103691.html

[YEMX]

BSJ- Worked beautifully...  Thank you!  Now to replace all these o-rings, polish up the trigger parts, re-assemble and hopefully have no leaks!! 


Side note- using the factory belleville's, what's the set up to "bypass" the reg?  I have a HuMa I'll be using to handle regulation.  Do I need to purchase spacers?

[Rallyshark]

BSJ- Worked beautifully...  Thank you!  Now to replace all these o-rings, polish up the trigger parts, re-assemble and hopefully have no leaks!! 


Side note- using the factory belleville's, what's the set up to "bypass" the reg?  I have a HuMa I'll be using to handle regulation.  Do I need to purchase spacers?

I can't remember for sure.  I removed ALL of the reg guts(including washers), and made a piece to seal it with the adjustment cup.  I think Huma has the directions on their site though!

[BSJ]

BSJ- Worked beautifully...  Thank you!  Now to replace all these o-rings, polish up the trigger parts, re-assemble and hopefully have no leaks!! 


Side note- using the factory belleville's, what's the set up to "bypass" the reg?  I have a HuMa I'll be using to handle regulation.  Do I need to purchase spacers?

I turned all the washers to face the same direction and cranked the adjusting screw nice and tight.

[YEMX]

I can't remember for sure.  I removed ALL of the reg guts(including washers), and made a piece to seal it with the adjustment cup.  I think Huma has the directions on their site though!

I turned all the washers to face the same direction and cranked the adjusting screw nice and tight.

Rallyshark- HuMa does indeed have a link to their install instructions...  But I'm a bit confused.  The way I'm reading the instructions, I may have to do a combination of what you and BSJ is saying.  HuMa instructions for bypassing the factory reg first tell me to completely remove the screw and the white washer:


Does that sound right to you guys?  To just leave out completely the white washer and screw that retains it?

Then the HuMa instructions go on to say replace the remaining reg parts...  That's easy enough- BSJ, would you happen to remember which way you pointed the bevel?  Picture 1 or Picture 2:

Pic 1, bevel away from the adjustment screw:


Pic 2, bevel towards the adjustment screw:


Or would it not matter, since we're bypassing the valve anyway?

You guys are awesome!!  Thank you for the help!  I'm finally making some headway on this pistol that's been sitting while I've been gathering parts and doing other builds.