Author Topic: Weird PP700 stuff (Read 9322 times))

Rallyshark · « **Reply #20 on:** July 19, 2019, 12:42:12 AM »

I made some quick and sloppy paint diagrams to explain. Picture 1 shows the passage I was talking about opening up. Picture 2 shows how I modified the factory parts on my gun. On the actual reg housing, I drilled multiple holes around it as opposed to the single small hole that it has is stock form. Drilling those angled holes is tough on small drill bits, so good ones are needed for that. In your case, if you were making a new piece to replace that reg housing, you should be able to do it a bit differently(without the odd angled holes to drill) if you space the o-rings farther apart. I hope this makes sense

YEMX · « **Reply #21 on:** July 19, 2019, 12:47:17 AM »

Quote from: Rallyshark on July 19, 2019, 12:42:12 AM

I made some quick and sloppy paint diagrams to explain. Picture 1 shows the passage I was talking about opening up. Picture 2 shows how I modified the factory parts on my gun. On the actual reg housing, I drilled multiple holes around it as opposed to the single small hole that it has is stock form. Drilling those angled holes is tough on small drill bits, so good ones are needed for that. In your case, if you were making a new piece to replace that reg housing, you should be able to do it a bit differently(without the odd angled holes to drill) if you space the o-rings farther apart. I hope this makes sense

Once I really started looking at the receiver and associated parts, it made total sense! Lets see how this goes!

Backyard Shootr · « **Reply #22 on:** July 19, 2019, 01:13:48 PM »

I have a Huma reg in my PP700. So why couldn't you remove all the stock guts in the silver part something like Rallyshark did but seal the end of the silver part with the constant valve nut #24. Maybe epoxy it in place so no leaks. Then you could drill big holes in-between the O-rings. Would that work? If so you would be able to open everything up.

YEMX · « **Reply #23 on:** July 19, 2019, 01:44:34 PM »

Quote from: Backyard Shootr on July 19, 2019, 01:13:48 PM

I have a Huma reg in my PP700. So why couldn't you remove all the stock guts in the silver part something like Rallyshark did but seal the end of the silver part with the constant valve nut #24. Maybe epoxy it in place so no leaks. Then you could drill big holes in-between the O-rings. Would that work? If so you would be able to open everything up.

That's actually the plan. The only issue is opening up the hole that connects the reservoir and the valve. That hole is tiny and drilled at an angle. I'll have to be extremely careful when drilling that out, and not go too big.

Backyard Shootr · « **Reply #24 on:** July 19, 2019, 02:08:29 PM »

I know I'm not explaining it well enough but I'm talking about completely gutting the valve of #25, 26 and 27 then sealing the end of the of the sliver valve then you could drill straight down into the valve. You wouldn't have to worry about drilling on a angle.

YEMX · « **Reply #25 on:** July 19, 2019, 03:37:55 PM »

Quote from: Backyard Shootr on July 19, 2019, 02:08:29 PM

I know I'm not explaining it well enough but I'm talking about completely gutting the valve of #25, 26 and 27 then sealing the end of the of the sliver valve then you could drill straight down into the valve. You wouldn't have to worry about drilling on a angle.

The angled hole is in the receiver, connecting the air reservoir (via PN 26) and the valve. PN 26 isn't the valve, it's the regulator housing.

Backyard Shootr · « **Reply #26 on:** July 19, 2019, 03:53:12 PM »

Interesting! My part #'s are different than yours.

aluminumfetish · « **Reply #27 on:** July 19, 2019, 04:03:20 PM »

Quote from: Backyard Shootr on July 19, 2019, 03:53:12 PM

Interesting! My part #'s are different than yours.

?

Backyard Shootr · « **Reply #28 on:** July 19, 2019, 04:38:31 PM »

Mine is in English.

Backyard Shootr · « **Reply #29 on:** July 19, 2019, 04:40:44 PM »

My PN 26 is 23 on yours?

Rallyshark · « **Reply #30 on:** July 19, 2019, 07:08:12 PM »

Quote from: Backyard Shootr on July 19, 2019, 04:40:44 PM

My PN 26 is 23 on yours?

They moved the numbers around on the parts diagrams when they made one for the SA, but the actual parts are mostly the same between the W and SA. The biggest difference is the grips, barrel length, and shroud. The SA has a slightly longer barrel, but a less effective shroud.

Backyard Shootr · « **Reply #31 on:** July 19, 2019, 07:35:26 PM »

Donny did you understand what I was describing on opening the holes on the silver valve?

Rallyshark · « **Reply #32 on:** July 19, 2019, 08:12:00 PM »

I believe I understand, but the problem is that the nut goes pretty far into the regulator housing(so it isn't hitting the trigger guard), so you would still have to drill the hole at an angle. There isn't enough room in there to drill a larger hole at an angle while still having enough space for the o-rings to seal the silver piece(reg housing) to the frame of the gun. The parts you're referring to as the valve are actually the regulator guts. Constant valve is Chinese for regulator,lol. The thought of what you're talking about is good, but there just isn't enough space on the parts to do it like that I don't think.

Chances are, you'd still have to put an o-ring/plug in there to get it to seal, even with the epoxy. Epoxy doesn't do as well at those kinds of pressures when it come to making a complete seal. I believe Tom is going to make a new silver piece(reg housing- part#29 in your diagram) anyway, so he can make it to have more flexibility with the holes being drilled. A new reg housing will make a lot of things easier, but there is still going to be that choke point in the frame of the gun where that tiny hole is.

Backyard Shootr · « **Reply #33 on:** July 20, 2019, 04:37:08 PM »

This is what I was talking about. 3mm hole all the way thru. 3mm oblong hole between the O-rings. Seal the end with the factory threaded nut. For added sealing installed a rubber washer inside the breech.

Backyard Shootr · « **Reply #34 on:** July 20, 2019, 04:39:23 PM »

For the record there's plenty of room inside once you remove everything.

Rallyshark · « **Reply #35 on:** July 20, 2019, 05:38:45 PM »

Quote from: Backyard Shootr on July 20, 2019, 04:39:23 PM

For the record there's plenty of room inside once you remove everything.

Yep, I knew what you were talking about. My concern was/is sealing where the where the nut is in the end. That's why I made a plug with an o-ring on mine. I didn't trust that large hole in the nut being sealed and staying sealed with the pressure behind it. It is also hard to get a good seal on a threaded surface too. I did testing on mine unregulated as well, so pressure was of even more concern then. If what you did works, then that's awesome! Optimally, making a new piece without the threaded nut/hole in the end would be best. Now, if you can address that tiny hole going to the actual valve, you will have something then

I look forward to seeing how your gun does after you get it all back together for sure.

Backyard Shootr · « **Reply #36 on:** July 20, 2019, 05:59:49 PM »

That's my concern also with the factory threaded nut. What I did was epoxied a metal washer inside then filled the rest of the void with epoxy. Then epoxy the threads and screwed it in flush with the regulator. When I took some measurements I found there was .71mm space between the regulator and breech. I put a 1mm rubber washer in between them so when tightened it made a nice seal. Also with the regulator being flush now against the breech there no chance of the plug blowing out. I think it will work. I'm going to open up that little hole in the breech to 3mm also. Everything else has been done. Should be a hand held cannon.

Backyard Shootr · « **Reply #37 on:** July 20, 2019, 06:03:29 PM »

I forgot to mention mine isn't unregulated know. It has a Huma in the tube.

Backyard Shootr · « **Reply #38 on:** July 20, 2019, 07:02:02 PM »

Little hole not so little no more.

YEMX · « **Reply #39 on:** July 20, 2019, 08:29:17 PM »

speaking of that regulator nut, anyone know the thread size? It's not a M10. Too small for M12. Stores don't even show M11 (is there one?) on the thread testers. I'd like to get a solid grub screw as a replacement. Or is the lack of a solid replacement the reason why everyone is using rubber washers, or o-rings and a PEEK disc?

Thank you to our advertisers!

Weird PP700 stuff

Author Topic: Weird PP700 stuff (Read 9322 times))