[ccjohnson]

I think he said around 500-550 on high side and around 110 on low side. I am leaning towards thinking the small copper line is obstructed by excess brass from the patch. To my thinking (and I may be wrong) when compressor first kicks in, it is moving refrigerant in a gaseous state through the filter into the copper line. As pressure increases it is then trying to move liquid state state refrigerant past the obstruction. Gas will move easier through a small dia than a liquid. This obstruction is a long way from the evaporator unit. In my mind refrigerant goes back to gaseous after getting past the obstruction before it gets to the expansion valve/capillary tube in the evaporative unit. Thus no cold air is developed inside.