I have a 1984 500SL euro that is getting no fuel to left bank of engine. Seems plenty of fuel at distributer supply line. Will run on all cylinders if I spray gasonine into intake. At present I have no book on this engine. I have had this autompbile in two shops locally and have spent a lot of money on their guesses. I am a retired, disabled mechanic myself, but not on computerized stuff. It is shade-tree time, any suggestions appreciated