I think the problem is with the lower quality gas pistons rather than the gas piston itself. I have a Beeman RX-1 w/ the Theoben gas piston that I purchased brand new in 1998. I released some of the pistons pressure ( to lower the cocking effort) and it's never leaked a cc of air. I would be that most of the current Crosman rams come from China. Since their quality can be hit or miss, it's no wonder they leak out. Nathan
Will ambient temps/humidity affect gas strut performance?
Quote from: avator on December 01, 2017, 10:16:55 AMWill ambient temps/humidity affect gas strut performance?American Airgunner also had an episode where they did a test on temperature effects.They put both a coil spring and a gas charged spring guns in a deep freezer then brought them out and shot string as the warmed up. Tom G. was actually surprised with the outcome as the Nitrogen spring fps changed MORE the the coil spring version as the temps raised."Myth Busted".Like Bill, I have working in an Industrial environment when gas spring were used in Tool and Die. Those springs took thousand of cycles without an issue, day in day out. Failure was rare... except for this one die... for some reason it ate them like candy and they were an odd size that we could only get from one source.
Quote from: Hoosier Daddy on December 03, 2017, 09:26:18 AMQuote from: avator on December 01, 2017, 10:16:55 AMWill ambient temps/humidity affect gas strut performance?American Airgunner also had an episode where they did a test on temperature effects.They put both a coil spring and a gas charged spring guns in a deep freezer then brought them out and shot string as the warmed up. Tom G. was actually surprised with the outcome as the Nitrogen spring fps changed MORE the the coil spring version as the temps raised."Myth Busted".Like Bill, I have working in an Industrial environment when gas spring were used in Tool and Die. Those springs took thousand of cycles without an issue, day in day out. Failure was rare... except for this one die... for some reason it ate them like candy and they were an odd size that we could only get from one source. Most rare failures were caused by microscopic metal shavings from worn trimlines in the dies. The shavings would wear on the seals. Regular die maintenance would reduce this.