My empty tank is a new recovery tank with both fluid and vapor valves.
I do not have a refrigerant recovery pump, my plan was to evacuate the recovery tank and possibly use the "supply tank in hot water, receiving tank in cold water" method. I only need to get 20 lbs max out of the full tank and into the recovery tank.
I have a ready supply of vacuum pump oil
The system has been in pieces for years, all hoses will be replaced with new, condenser is new, new sealed drier will be used, I blew out the evaporator well before putting the suitcase together.
I'd be more than happy to rebuild (reseal) the A6 if that is advisable ... I have to put in a new clutch bearing anyway.
I will certainly consider using a Proten compressor if my A6 needs enough work that it would justify a new compressor.
My first step will be attempting to draw off about 15-20 lbs from the full cylinder.
Anyone done this before without a recovery pump? I see several videos on YouTube with people doing it fairly easily with a simple hose between tanks and using temperature to create the transfer pressure.
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