It seems to me like your project is becoming more complex than it needs to be. Just trying to save you some work

JohnHere, after I inject the oil, are you saying that the existing vacuum should pull the charge in? I won't turn the vacuum pump on again after adding the oil? As said, maybe yes, maybe no. Your call. As also said previously, I wouldn't leave the system in a vacuum state over the winter. If you do...

I had a 1972 Dodge Colt, 4-speed manual transmission (Mitsubishi, made in Japan)—bought new—that simply would never cool sufficiently. This car didn't even have a fan clutch—just a solid plastic, belt-driven fan. Couple that fact with a tiny condenser, and the reasons for its poor cooling performanc...

My injector came only with a low side fitting, and I changed it over to a high side fitting, but I don't remember what I did, I'll have to check it out. Why the manufacturers of these things think it is a good idea to inject oil into the low side of a running system is beyond me....most people do N...

If memory serves, I never had a VIR whose connections wouldn't budge like that. Must be due to external corrosion on the threads. Only thing i can suggest is to spray them with Deep Creep or something similar every day for about a week. Then apply opposing manual force to the connections using prope...

As I mentioned to someone else on the Forum the other day, if your daily temperatures are in the 40-50°F range, like they are in my area, it's too cold to weigh-in a full charge unless you set the charging cylinder in warm water to raise the refrigerant's pressure, use an electric cylinder warming b...

Yes, that's one type. There are larger ones, though.

Injectors are available that will allow you to add the oil without having to break the vacuum or disassemble anything.

Sorry you had to repeat so much due to the hack. But I think you're just about ready to finish up now. Remember that one micron is an extremely tiny measurement of vacuum and that anything below 500 microns is considered a deep vacuum in the trade. Additionally, a reading of 500 microns or below mea...

I don't see any icing in the photo. But to achieve a reading of 170 microns after only 30 minutes of pulling a vacuum seems extraordinary and makes me wonder whether the valve between the micron gauge and accumulator is closed.