I am working on an older Saniserv margarita machine with a slow leak. It took a couple months for it to leak down and stop cooling properly. I put dye in the system when I first added refrigerant (MP-39) and found dye where the copper suction line penertrates the steel compressor housing. It has a Copeland compressor model number JFP1-0050-IAA-101.
I have been told that this is not an easy area to braze because by the time you get the housing hot enough to melt the 45% silver solder, you can inadvertanly melt the insulation on the motor windings, or screw up an internal pressure switch or coke up the oil.
I was wondering if anyone has sucessfully done this. I am tempted to try it, becuase the compressor is useless as is. I was thinking of wrapping a wet towel around the compressor away from the suction line to keep the entire compressor from over heating.
Thanks ahead of time for any advise.