Bubbles in the site glass does not mean moisture <img src="/forums/images/graemlins/confused.gif" alt="" />

If you pulled a vacuum for 30min plus, you removed all moisture from system. The longer the better IMO.

Some bubbles are normal esp w/134a. NO bubbles could mean no gas. Even w/a perfectly operating system on R12 I had a few bubbles. Bottom line, I don't use bubbles as an eval tool. Old school, I think they filled system till most bubbles were gone - but measuring in the proper amount of gas is a WAY better method.

Too high on the high side may be:
-poor airflow over condensor (use a BIG fan or mist from hose) Feel condensor or measure w/therm. If its WAY hot or not significantly cooler on output side, you need MORE AIR
-too much gas (will also ALWAYS result in poor cooling, to little gas can actually cause evap to FREEZE)
-blockage in system (did you FLUSH everything? what came out?) DO NOT PUT FLUSH IN COMPRESSOR
-too much oil in system
-did you change expansion valve to a 134a unit? (I dunno how much diff that makes)

How did you measure oil in system? I think the only way to know EXACTLY how much is there is to flush all lines plus condensor and evap and remove compressor and dump out oil. Then you can measure oil you put it in per specs.

I know yer ALWAYS supposed to replace drier after you open system up. But I ain't no A/C guy so I don't follow their "rules" <img src="/forums/images/graemlins/butwiggle.gif" alt="" />. The 'drier' is basically a filter and it uses oil and screens to form a kinda 'one-way-valve' that traps moisture and prevents it from circulating thru system. Bottom line, if you pull a vacuum long enough, ALL moisture in system will be evaporated. Unless you suspect there is DEBRIS in system which could clog up the filter, you prolly don't have to change the drier again just to open system up again.

While on driers, you may have messed that one up by putting it in backwards - but I'm not sure. I did that once too <img src="/forums/images/graemlins/kewl.gif" alt="" />

Good luck bro! I did work for a guy once who did alot of A/C work, but I learned most of what I (don't) know f-ing w/my Toyotas. <img src="/forums/images/graemlins/cheers.gif" alt="" />