Another pp700sa question

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Barzor

Member
Dec 27, 2021
88
13
Manila, Philippines
Its been awhile since I posted since I go back and forth with air to gun powder. Now im back. I have 2 questions:

1. I notice that there is a very slow leak. I have tried water and soapy bubble. I have even tired putting lighter flame next to places where air might leak, like where you put air in. Or the other end of that tube. Ever since I opened to put reg in and also polishing trigger, I noticed this very slow leak. How else can you find where leak is.
The leak is about 1-2 lines on gauge per 3-4 days until goes to about half amount then it slows down a lot more. How in the heck can I find this leak its so annoying.

2, This brings us to next question. How many shots does stock pp700sa shoot with the only change is increasing the spring tension to max. Does that mean that the gauge right between yellow and green. Or is it right to zero?

The more you put effort with perfect shot the pistol gets more accurate. When I don't try its still accurate. Im getting one ragged hole in a one inch circle at 10 meters with red dot.
I had used a pistol scope in past but its too heavy to shoot.
 
Barzor said:
1. I notice that there is a very slow leak. I have tried water and soapy bubble. I have even tired putting lighter flame next to places where air might leak, like where you put air in. Or the other end of that tube. Ever since I opened to put reg in and also polishing trigger, I noticed this very slow leak. How else can you find where leak is.
The leak is about 1-2 lines on gauge per 3-4 days until goes to about half amount then it slows down a lot more. How in the heck can I find this leak its so annoying.
Click to expand...
Hi
I have the same problem when it reaches 100bar it stops losing air. The tank is so small that I don't even look for it when I go to shoot with it I recharge air.
Regards
Enkey
 
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In the regulator the part that threads with the tank has four holes to disassemble it. Disassemble it and put Teflon or some Vibra Tite VC-3 type sealant on that thread. This is usually a very common leak in the pp700 and difficult to fix.
Regards
Enkey
P.s. It is a low cost Chinese product you can't demand too much from it. I think that for its value it is quite good
 
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As Enkey said, a leak from the regulator body is very common. Reason being, the seal is formed by crushing a rigid nylon disc but it’s difficult to develop enough torque to accomplish that. A workaround is to add an O-ring as shown here:

Artemis pp700sa Pistol Review

Man, you guys are making me miss my old PP700. Such a pleasure to carry around and has to be one of the best deals in pcp's. If any of you guys see her around, tell her I think about her all the time. . . . 😩
www.airgunnation.com www.airgunnation.com

However if the source of the leak remains elusive, you’re looking at a choice between these two:

A. Do a complete teardown and replace every O-ring.
- or -
B. Dunk it in the bathtub. For most of us, the natural inclination is to avoid doing something like this…at least not until all other reasonable measures have been exhausted. But if you reach the point where a teardown is necessary anyway, might as well dunk it and know with 100% certainty where the leak is. Remove the barrel first of course and follow with degas, disassemble, and dry.

Or a possible third option is to buy/borrow/rent an ultrasonic leak detector.
 
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This pistol is amazingly accurate and efficient. The factory setup is the best.... don't mess with it. A full charge to 2.2 MPA will allow 40 shots before the gauge reaches the yellow 100 Bar. I use the 5.51 JSB 15.89gr pellet.

Your leaks are most likely O ring item number 34. This O ring is used on both ends of the air tube. I have had problems with both. The OP's issue will be the one on the receiver end. It is too small and often leaks in strange ways. I had the same issue Enkey stated and my initial solution was an 8 mm O ring at the base as nervoustrig stated, but that was just a band aid and an indicator that O ring 34 is the real culprit. Number 34 is supposed to be a 1.5 mm x 5 mm. It is slightly too small. I successfully use a 2 mm x 4.5 mm O ring. Use silicon grease when installing it. It fits tighter and seals well.. My problem on the other end was with the black anodizing flaking on the edge of the hole destroying the O ring. My solution was to use a 100 degree countersink tool lightly beveling that hole edge and again substituting that O ring with a 2 mm x 4.5 mm O ring. So far, so good.
 
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Barzor said:
Enkey or others… when I look at pic they put o ring on inside bottom of threads. I plan to use the tape should I put tape on male threads or should I put it where the o ring is???
Click to expand...
Hi
In the thread on the part that threads into the regulator body, the nylon washer at the bottom is very difficult to seal, so some people add an extra oring or seal the thread.
Regards
Enkey
 
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