okay, i have a 360 with a benQ drive in it, and from what hear, it is one of the drives with the least amount of problems, a couple of weeks ago i started getting the open tray message every once and a while, then over the next week it just got worse to the point where it didn’t want to play anything, so like anyone who doesn’t want to shell out the money to send it in, or buy a new one, i started digging around on youtube and google, looking for a at home solution, i did that whole pounding on the top thing (satisfying as it was) that worked only the first few times, so then i tryed the rubber band trick, waste of time, so then i took the whole damn thing apart and cleaned it with q-tips and a air compressor, well it then read dante’s inferno, but not anything else…then not even Dante’s inferno would work. at this point i am about to toss the damn thing in a microwave, so again i looked for another idea, yank the power cord out, nothing. do the pot tweak, well that worked long enough to download a couple games to the hard drive, so i still have to fight the thing every step of the way but if i kick the hell out of it enough to recognize the disk, i just have the hdd take over, so i was wondering if anyone had any other solutions to this problem short of replacing anything or flashing the drive, at this point im just wondering how microsoft can charge so much $ for something that is barely worth its weight in dryer lint…

I bought a brand new air compressor and someone opened a drop the valve on the piping network and it lost air and it kept on going on and off i dont know how long but when i came back it did not work anymore
I bought a brand new air compressor and someone opened a valve on the piping network and it lost air and it kept on going on and off I don’t know how long but when I came back it did not work anymore (the valve was open only a crack so it had time to recharge and loos air every few minutes)I tried looking for a reset button but I did not find one, my compressor is a Dewalt oil less tank mounted

I over filled my car’s a/c system with 134a now the compressor is locked up, whines and smokes if I turn on the a/c for more than 5 seconds. If I drain the system myself will that disengage the clutch and bring it back to normal or do i need to spring for an all new compressor?

The A/C in our Chrysler Town & Country has suddenly stopped blowing cold. The compressor is working as the pressure looks good, but no cold air from the front or rear units. My guess is that the expansion valve has blocked and needs to be replaced along with the drier. Any directions on how to get to the expansion valve would be appreciated.

I bought a brand new air compressor and someone opened a valve on the piping network and it lost air and it kept on going on and off I don’t know how long but when I came back it did not work anymore (the valve was open only a crack so it had time to recharge and loos air every few minutes)I tried looking for a reset button but I did not find one, my compressor is a Dewalt oil less tank mounted

Hi. I gather that the temperature is measured in degrees Kelvin for these matters, with 273 K being 0 degrees C. So that a temp in degrees Celsius plus 273 = that temperature on kelvin’s scale.

Also, It seems that the ideal gas law rules the relationships between the temperature, pressure and volume of any gas or any mix of gases as long as no phase change occurs, as in condensation of one or more constituents, and as long as no chemistry takes place. Nothing burns for instance. OK, I think I get all that.

But if that much is true why doesn’t "shop air" from any air compressor condense to a liquid as it comes out? As the gas (air) is squeezed to ten times atmospheric pressure its temperature shoots up to ten times hotter. That’s *2460* degrees Celsius if the air starts at 0 Celsius. That’s actually 273K raising to 2730K, but whatever. OK?

Of course heat flows from higher temperatures to lower and so the air compressor gets hot without the air within ever getting anywhere near 2460 C. And the compressor has a heck of a lot more mass than the air being compressed, so that it doesn’t get anywhere near 2460C either. And even then "specific heat" is more complicated than just a difference in density. Well OK. Not an issue here, or is it?

Here is the part I just can’t fathom at all; If the compressed air is at room temp, say 0 C, and it’s allowed to go from 150psi down to the 15psi of the atmosphere, then what keeps the expanding air from just liquefying?

The Ideal Law seems to predict that the room temperature (0C or 273K) air at 150psi should drop to 1/10th that temp at 1/10 the pressure. That would make it 27.3 degrees Kelvin, and that’s almost cold enough to liquefy hydrogen. Now I’ve never seen anyone hook an expansion (rocket) nozzle onto an air line but even without one it seems like at least the CO2 should condense out.

I’m pretty sure my reasoning and/or information must be flawed but I can’t figure out where the train jumps the rails. Can anybody please point out the obvious to me or should I just make a nozzle and see what happens? Is that how they make dry ice?

Anyway, Thanks.

I am buying a house on a 0.25acre lot and I have sprinklers in the front and back. I dont wanna buy an air compressor too small so Id rather someone be wrong high than low. Also if you could explain the process of doing it you would get a best answer right away!!!!

I had the compressor & dryer vent changed checked for leaks and filled with free- on. Air was a little cool but not nearly cold enough. Took it back to the shop, they put a little more free- on in but didn’t want to put much at risk of over charging. The air is still cool but not cold. Shop says they don’t think anything is wrong with it and don’t know what to do. But I have a small child that is in the back and it stays pretty warm back there. What else could be the problem?

we have many air conditioning system that used to work with R12, BUT RECENTLY (ABOUT 2 YEARS AGO ) WE RETROFIT THEM TO R134A .unfortunately some of them oil refrigerant go to cycle and compressor destroy.!! and we dont what happened ???

Where can I buy an air conditioning compressor? I mean what sort of thing should I look for in the yellow pages? Not an automobile AC compressor, just a 120 volt one for a window unit.
Yes, ottawa, ontario.