Tuning Hm 1000x tuning and mods

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Valve spring is .040 wire and about 3/4 of a inch long found a spring with same inner diameter but .046 wire I had to cut it shorter though turned the reg back up also it should be right around 150 bar didn't test it yet I'll have to put everything back together and air up the gun where is a good place on line to source out springs might have to get a couple different wire sizes to try
 
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Yeah there is a oring inside the valve body to keep the valve stem sealed the stem step down helps with throat size increases it throat size without drilling it out like I said I pretty much just copied the raw but made the poppet smaller around and just copied original valve stem for the most part the step down it is in the same place as original step down my valve guide is alittle longer than the original but not by much. I was looking on line to try to source out some heavier wire springs I only have one her which .054 wire but I had Dell out inner dimension to just over ,200 leaving wire size at .046 seems quite a bit heavier though I had to cut down it's length to was going to give it a try along with bumping up the reg slightly was worried about the poppet bottoming out when dry firing at lower pressure to be able to drain air so I made poppet step shorter but kept over all length or total length of the poppet the same 
 
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Yeah there is a oring inside the valve body to keep the valve stem sealed the stem step down helps with throat size increases it throat size without drilling it out like I said I pretty much just copied the raw but made the poppet smaller around and just copied original valve stem for the most part the step down it is in the same place as original step down my valve guide is alittle longer than the original but not by much. I was looking on line to try to source out some heavier wire springs I only have one her which .054 wire but I had Dell out inner dimension to just over ,200 leaving wire size at .046 seems quite a bit heavier though I had to cut down it's length to was going to give it a try along with bumping up the reg slightly was worried about the poppet bottoming out when dry firing at lower pressure to be able to drain air so I made poppet step shorter but kept over all length or total length of the poppet the same
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You better change the design of valve body. Do not install O ring inside. Rather install a complete length delrin bush to act as guide of the valve pin.

Under high pressure air the O ring does not act as good.

Complete length delrin bush acting as a bit tight clearance guide of pin will work much better.

You might need the keep the dia of the pin identical in complete length of the pin. No step in pin is required. 

Bhaur


 
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 The step in the pin never enters the rear of the valve it stops just short of it I suppose a .002 .003 thousandths of a fit will be good for a guide . Probably take longer to get the oring out and figure out dimensions than it will to make may have to bore out the rear of valve from the front side and leave plenty of metal on the back by the hammer to insert derlin from front where the poppet sits I'll have to look at it closer later today
 
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Well I removed all valve orings and drilled out the rear of the valve all the way to the oring seal was out and left the rear part of the oring seat alone drill it to .200 and made a derlin insert just oversized had to install it with hammer and a piece of peek drilled a 1/8 inch hole threw it and had some 1/8 inch cold rolled steel rod for the valve stem put in the new valve stem into peek poppet just a press in fit had to take a little off the 1/8 inch stem to get it to move freely but now the whole length of the rear of valve is supported by derlin instead of just a oring I may need to redo the valve stem again got it a little looser then I wanted but got plenty of 1/8 rod to do so I know I will loose power but I may switch to peek on the hammer because the rear of the valve seems to be quite thin even though I stopped just after removing the inner seat of the oring I would feel better with peek so I don't worry about beating the rear of the valve to death peek is harder than derlin and could reach 60 ftlbs with derlin before so it shouldn't be a problem
 
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Measured what metal is at the back of the valve before the oring and there is only .050 of a inch if the hammer were to bash into it I'm afraid it would bend the valve I didn't remove any metal there stopped after taking out the front of the oring seat was just thinking peek would be a safer bet Incase hammer ever would contact back of the valve 
 
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It should I bumped the reg up to 150 which made my ssg set way to weak I'll have to make some shims to get it set for correct power level and test again for es I can't believe how much of a increase 5 bar makes for pressure to hit with the hammer lol valve holds air down to 90 bar after that it leaks down which is plenty low enough thanks for another mod mubhaur
 
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