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MadMax · March 11th, 2006, 00:58

Specifically where is the leakage visible? I have noted that sometimes I see white vapor blasting out of the mag fill valve (small diameter). I have sometimes noted that mist can sometimes spray at the much larger diameter bore in the bottle fitting.

Each leakage comes from very different places:

Spray from mag valve: You can tell because the spray originates at the periphery of the mag valve diameter or the diameter of the hole in the baseplate in the mag. This occurs when the mag is full (backspurt) or if the tip of your adaptor is significantly damaged. Small dings or slight out of roundedness should not be too much of a problem really.

Spray from the bottle fitting opening: spray blast appears at the opening of the bottle fitting (much larger dia then the a tip-fill valve leak). I don't know why I didn't see this issue with earlier builds of the adaptor. It might be because more V4 adaptors have been released than all prior builds put together and that all versions suffer from the same issue. I did not change the tank end of my probe that much between builds so I suspect that orings in Coleman propane tanks may have changed slightly.

Anyways, it appears that this problem can occur when the user does not fully depress the probe into the tank. A shy push pushes the probe far enough to open the schraeder valve in the tank, but not far enough to push the part of the probe which tapers to a larger diameter into the tank oring. While the minimum diameter of the tank end is usually large enough to make a decent seal, sideloading the tip can push the tank end sideways and allow a leak out one side between the oring and the tank end of the probe. If you push more firmly, the out taper pushes and makes a more reliable seal.

I've addressed the issue in a recent build of the V4 adaptor. I moved the out taper closer to the tip to get more squeeze in the oring sooner in the probe travel. I wasn't able to make the oring leak with intentional sideload with a plugged adaptor tip so I think the issue is addressed.

Not enough changes to call the product V5, perhaps V4+ or even not mentioning things at all to save the annoucement for a louder launch for a future V5 maybe.

March 11th, 2006, 00:58	#5
MadMax Delierious Designer of Dastardly Detonations Trader rating Join Date: Dec 2001 Location: in the dark recesses of some metal chip filled machine shop	Specifically where is the leakage visible? I have noted that sometimes I see white vapor blasting out of the mag fill valve (small diameter). I have sometimes noted that mist can sometimes spray at the much larger diameter bore in the bottle fitting. Each leakage comes from very different places: Spray from mag valve: You can tell because the spray originates at the periphery of the mag valve diameter or the diameter of the hole in the baseplate in the mag. This occurs when the mag is full (backspurt) or if the tip of your adaptor is significantly damaged. Small dings or slight out of roundedness should not be too much of a problem really. Spray from the bottle fitting opening: spray blast appears at the opening of the bottle fitting (much larger dia then the a tip-fill valve leak). I don't know why I didn't see this issue with earlier builds of the adaptor. It might be because more V4 adaptors have been released than all prior builds put together and that all versions suffer from the same issue. I did not change the tank end of my probe that much between builds so I suspect that orings in Coleman propane tanks may have changed slightly. Anyways, it appears that this problem can occur when the user does not fully depress the probe into the tank. A shy push pushes the probe far enough to open the schraeder valve in the tank, but not far enough to push the part of the probe which tapers to a larger diameter into the tank oring. While the minimum diameter of the tank end is usually large enough to make a decent seal, sideloading the tip can push the tank end sideways and allow a leak out one side between the oring and the tank end of the probe. If you push more firmly, the out taper pushes and makes a more reliable seal. I've addressed the issue in a recent build of the V4 adaptor. I moved the out taper closer to the tip to get more squeeze in the oring sooner in the probe travel. I wasn't able to make the oring leak with intentional sideload with a plugged adaptor tip so I think the issue is addressed. Not enough changes to call the product V5, perhaps V4+ or even not mentioning things at all to save the annoucement for a louder launch for a future V5 maybe. __________________ Want nearly free GBB gas?