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Old 12-13-2014, 12:00 PM #1
TaggRat
 
 
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gen-e LPR issues ???

ok let's see if anyone here has any insight. I got 2 gen-e's for christmas and got to open them today. first one has no noid, so I'll work on finding a noid, but the 2nd one I was planning to sell. I aired it up with a known good hpr and pop when air starts feeding through bolt sticks forward and air is pouring down the barrel. I swapped out the lpr with my scm3 and it worked fine. put another pbc lpr on it (first one was a pbc) and it did the same thing....What am I doing wrong? The pbc's are turned all the way in as to not restrict any air and I go from no air from the hpr to suddenly enough to force the bolt forward and leak down the barrel.

Any thoughts?
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Old 12-13-2014, 01:11 PM #2
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backed one of the pbc lpr's out a little and it started working.
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Old 12-13-2014, 01:13 PM #3
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too low a pressure not sealing up properly?
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Old 12-14-2014, 12:51 PM #4
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all the way in means that they were at full pressure, and that *can* result in forward bolt stick/venting if your main reg is too high

Last edited by Tracker : 12-16-2014 at 02:54 AM. Reason: clairification
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Old 12-16-2014, 01:13 AM #5
BonesJackson
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You draw the wrong conclusion from the right information. All the way in means they were at full pressure, and that results in the bolt having a lot of stress on it and usually snapping.

There is naturally more pressure behind the bolt than in front of it, so if the LPR is too low there isn't enough force to push the bolt back. That's when it sticks forward. It should never vent. If it does your o-rings be ****ed, yo.
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Old 12-16-2014, 02:17 AM #6
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ive had an LPR lock the bolt forward on me before
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Old 12-16-2014, 02:23 AM #7
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Ok well go ahead and try to explain what was going on then using logic. If your head doesn't start hurting you've drawn the wrong conclusion.
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Old 12-16-2014, 02:42 AM #8
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im sure there were several factors involved when i had my issues, perhaps there was a nicked o-ring on the can that the higher pressure would allow air past it and get the bolt pressure off balance

also,, having a bolt stuck forward was a common enough occurrence "back in the day" that its in the sticky

...having the bolt stick forward
This is your solenoids way of telling you it is over pressurized. De-gas the gun and turn your beehive down.

sooo.. if your running your HPR too high. and your LPR is the only thing thats keeping your bolt pressures in check.. wouldnt turning it up allow you to then overpressurize your noid.. thereby causing the bolt to stick forward?

Last edited by Tracker : 12-16-2014 at 02:52 AM.
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Old 12-16-2014, 02:46 AM #9
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I mean no offense, Tracker. I'm just saying you know better, so why spout nonsense?
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Old 12-16-2014, 02:51 AM #10
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but im not spouting nonsense, fine, instead of saying that "that causes it" i can edit out the absoluteness of my post to say, "in certain circumstances it can cause it"

he already said the problem was fixed. and he fixed it by turning the lpr down.. so this is in fact one of the rare occurrences of the LPR being up too high being the cause of his problem..
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Old 12-16-2014, 03:01 AM #11
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and as far as it leaking down the barrel with the bolt forward, he didnt specify how much it was leaking down the barrel, and in all honesty if it did have a bad seal somewhere and it wasnt properly sealing off the dump chamber, how would you ever know in daily use? the dwell would have the bolt back and sealed without much on an impact to the efficiency
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