The A/C on my 78 300 SD would blow 42 degrees in the AM and the PM. But when the temp rises to 97-103 in Houston, Texas the
best my system would blow was 50-58 degrees.
I wanted more out of my system.. As I read previous postings about A/C recharging, I noticed an interesting posting that advised using a large shop fan to lower the condensor temp as R-12 is added...I don't own a large shop fan so I improvised, I placed Two- Ten pound bags of ice against the condensor and then placed Two house fans blowing across the ice as I shot the R-12. The results were incredible !! AM and PM temp is between 37 and 41 degrees, the temp in the heat of the 97-103 degree Texas days, is between 42 and 44.... Those few degrees make a world of difference....GUYS, THIS IS A TRUE STORY....

Thank You,

JUAN

What did the guages read Juan? What did you have for Head pressure and suction pressure? You may have lucked out and tweaked it in which would be great, but then you may have overcharged it a tad. The accumalator is there to capture the liquid before it goes to the compressor but if it's overcharged some liquid may get into the compressor. Hope you make it thru the summer. It's hot down here!!! :) PS check those numbers out on your guages though really it's important, can't fight law of physics!