I'm in the process of replacing my old York A/C compressor with a new Sanden. It looked like a fairly easy job until I got into removing the large gas line from the evaporator. I dropped the evaporator and began working under the dash trying to remove the large hose from the evaporator. The entire assembly at the evaporator expansion valve assembly, including the large hose connection, is covered with an insulation glob. How do I remove the large hose without taking out the whole evaporator? There is a pair of wires leading from the evaporator leading to somewhere that I would have to disconnect. I'm in my late 60's so I hate to think how my back will feel tomorrow. Any suggestions would be appreciated. My shop manual wasn't much help in this case. My car is a '66 with factory A/C.