you only need to put the PAG oil in the compressor. just don't take the caps off of the drier/ receiver until you're ready to put it on, should be the last thing you connect. Just remember how much moisture is in our atmosphere, and the main purpose of the drier is to absorb mositure.
there is a mobile mechanic that comes around with a vac pump and the proper gauges who will vacuum the system after i clean and add oil.
Quick question - where does the oil go? i know compressor will need some and other places i've read say that the Dryer needs oil too. What about in the lines? I assume you lubricate all the fittings, seals and o-rings too.
Yeah I'm RHD... I will need to go to a wrecker for a line.
I ordered a new expansion valve - is that what you mean? also trying to get hold of some flush because i am going to take most of the lines and condenser off to clean before hopefully putting together ready for conversion.
is your car RHD? ifso, I'm not sure where you can get a line that you need. if you were in the states I'd help you fab something up...
You can try the hychill crap but I'd rather see you convert. if you convert to 134a you'll need to change the TXV in the evaporator box, as they are specific to the kind of refrigerant in the system. You'll also need to drain/ flush and change the oil in the compressor to the proper oil.