PP700 adventure started(Artemis PP700s-a)

[sawtoothscream]

Ok, it's flush with the top of it.  Is that wide open?   

[Rallyshark]

Ok, it's flush with the top of it.  Is that wide open?   

Yes, that is wide open.  You can actually turn it in a little , and it will still be wide open.  There's some wiggle room in that one.  Give the regulator adjustment about  1/4-1/2 turn CW(tighten), then pull off your grip, and get out the chrony.  Adjust the hammer spring and see what ya get.

[sawtoothscream]

Thanks for the help, will play with it tomorrow:)

[bandg]

That is a good idea Donny and I have thought of it but I always fill to 200 out of habit.  Will certainly try that and check some first shot results.  Probably not something you or sawtooth would necessarily want to do but I removed the transfer port restrictor screw, ported that lower area of the breech block to remove restrictions (threads, corners, etc.) as much as possible and blended a smooth curve in the vertical to horizontal transition area.  Then I put a "concave bevel" on the edge of the screw (much like an auto pistol feed ramp) to match the transition area from the vertical to the horizontal part of the channel.  I had never planned to tune with the restrictor screw and thought this might smooth out airflow a bit.  It would be easy enough to replace with another screw so it isn't something that couldn't be reversed other than the porting part of the work.

[Bizill]

bandg, do you feel you've gained anything from the porting.  It all sounds like it makes good sense but do you witness any benefits?  I've yet to really play with this puppy. 

[bandg]

Unfortunately I didn't do as one should and take 1 mod at a time and verify changes.  I will note that I'm getting 930+ with 7.33 gr. Air Arms Falcons and I have yet to modify the valve the way Rallyshark did to lessen air loss but I have made other changes.  So the best answer is I don't know for sure but having ported many car heads over the years I can say it is the same basic methodology and shape in that elbow area so it theoretically should make flow smoother. 

[Bizill]

Man, I read this thread before my purchase.  Then I was reading it concurrent with my purchase and now I'll have to re-read it after having owned the gun and getting to know it with a better understanding so I can see what I may have missed.  My reading comprehension is quite lacking.

[Wayne52]

Has anyone came up with a size/kit for the orings on this gun yet At the Menard's here in town you can pick Buna N orings individually and buy them super reasonable.

[Rallyshark]

Has anyone came up with a size/kit for the orings on this gun yet At the Menard's here in town you can pick Buna N orings individually and buy them super reasonable.

Here ya go! 
https://www.gatewaytoairguns.org/GTA/index.php?topic=128048.msg1257766#msg1257766

[Rallyshark]

That is a good idea Donny and I have thought of it but I always fill to 200 out of habit.  Will certainly try that and check some first shot results.  Probably not something you or sawtooth would necessarily want to do but I removed the transfer port restrictor screw, ported that lower area of the breech block to remove restrictions (threads, corners, etc.) as much as possible and blended a smooth curve in the vertical to horizontal transition area.  Then I put a "concave bevel" on the edge of the screw (much like an auto pistol feed ramp) to match the transition area from the vertical to the horizontal part of the channel.  I had never planned to tune with the restrictor screw and thought this might smooth out airflow a bit.  It would be easy enough to replace with another screw so it isn't something that couldn't be reversed other than the porting part of the work.

I know the admin of the facebook group has done the same thing to his transfer block.  It certainly makes sense that it would help with the air flow.  I started to do that to mine, but never got around to it.  I'm like you on the mods, I have a hard time doing 1 thing and testing.  I like to do a lot of stuff at once,lol!

[bandg]

It's addictive and you just can't stop fiddling with it.  Have a good 4th.

[Bizill]

Especially when you've got the AG apart.  You want to get everything done at that time because although we'll probably take it apart more than a couple of times, who really looks forward to doing it?  I mean we kind of look forward to trying new things, but really, a complete strip down?  It's hobby but sometimes it feels laborious.

This may be a stupid question but taking the air cylinder off after a degas, how does the regulator come off the block?  I couldn't unscrew it with my hands and didn't want to get out my rubber strap wrench.  Is that what it takes?  And man, are you guys having an IMPOSSIBLE time trying to turn the screw when adjusting the regulator?  I've got a large set of metric and standard keys but none seem to fit as you're forced to go at it at an angle.  Is it just mine?

[Rallyshark]

Especially when you've got the AG apart.  You want to get everything done at that time because although we'll probably take it apart more than a couple of times, who really looks forward to doing it?  I mean we kind of look forward to trying new things, but really, a complete strip down?  It's hobby but sometimes it feels laborious.

This may be a stupid question but taking the air cylinder off after a degas, how does the regulator come off the block?  I couldn't unscrew it with my hands and didn't want to get out my rubber strap wrench.  Is that what it takes?  And man, are you guys having an IMPOSSIBLE time trying to turn the screw when adjusting the regulator?  I've got a large set of metric and standard keys but none seem to fit as you're forced to go at it at an angle.  Is it just mine?

I'm not positive about what you mean when you say "block".  The regulator is held in the frame of the pistol by 4 allen screws.  There is also another threaded piece that screws into the air cylinder on one end and into the regulator on the other end.  That piece basically holds the air cylinder and regulator together.  Pictures would help us know what you have going on there.  If you're talking about the getting the air cylinder off, then removing the barrel will help a lot, so you can get a good grip. 

That regulator adjustment is hard to get to.  You're only going to get maybe 1/4 turn at time with a standard 4mm allen key.  Some folks took their 4mm allen key and ground it down except for the last 1/4" to make it fit easier.  I also recommend doing it with less than 100 bar in the tank, if you you're doing it with air in the gun.  I hope that helps

[sawtoothscream]

what size allen key for the reg? cant seem to find one that fits

[Rallyshark]

4mm as stated above.

[Bizill]

I'm not a smart man, but I do know what love is.  I'm feeling like Forrest Gump right now.  Isn't the regulator housed in the threaded part that holds the airtube to the "receiver"?  The stainless thing I sanded down in order to tighten it for a better breech seal is just the valve assembly, right?  If I'm right, I didn't see any way to get into that threaded portion that holds the air cylinder.  Am I trippin'?

[Rallyshark]

Try this image I borrowed from the facebook group.  This is of a W model, but the parts are the same.

[Bizill]

I don't want to degas right now but I swear, I saw no 4 bolts that hold the tube receiver/regulator together.  Either I'm blind, or the square shroud pistol doesn't have those.  I'm gonna have to disassemble sometime.  I don't recall those bolts or I would have removed them on the spot.  I was thinking I had to take a rubber strap wrench over the receiving threads to turn it loose from the regulator. 

[Bizill]

Okay, so looking at your pics it seems I DO need to unscrew the air cylinder and then unscrew the mating assembly to get to the regulator which is bolted to the receiver.  I just remember I couldn't unscrew it by hand.

[Bizill]

One more thing, I ordered that stainless fill probe from T Robb and it arrived but was made too big.  It won't fit in any of my female foster fittings.  The O.D. on the male foster is too big.  I'm not gonna try to sand it and don't want to have it turned down at work.  Anyone else have a problem with theirs?  I've emailed T Robb a few times over the past week with no response.