My personal opinion is that you put all the oil into the wrong place...and that may have messed up the compressor... either by having too much in it... or it being too far away to get mixed with the refrigerant so as to provide the lubrication it needs.... either one could be deadly to the compressor..
The only way to tell how much oil you have is to take the system apart , flush, and measure it back in... and of course the suggestion is to put it spread around in several places..
The R4 compressor does not have an oil sump.. thus the mixing of the oil in the refrigerant becomes very important ... way more than other type compressor which do have a reserve of oil to keep them going in the event of refrigerant loss...
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