Application for For 1990-2007 Ford Mercury Lincoln 5.4L How to Choose an Air Compressor 1 Look at the horsepower (HP) of the air compressor. 2 Try to look at Cubic Feet per Minute (CFM.) 3 Consider space and portability. 4 Consider your power source. 5 If using a tank mounted compressor, determine how large your tank should be. Work Principle The three main parts of the compressor clutch assembly are the coil magnet, the pulley, and the clutch plate. The clutch drive plate is splined to the input shaft of the compressor. .
