To install the clutch, line up the dowel pin on the compressor clutch field coil with the hole on the front of the compressor and set the field coil onto the compressor so the wire lead does not become pinched. The snap ring supplied with the compressor clutch field coil should be put on with the bevel outward and the two eyelets lining up on either side of the dowel pin. Put A/C Snap Ring Pliers 9764 or a similar tool to good use, placing the snap ring that holds the compressor clutch field coil into its groove. As you install the pulley and bearing unit, try not to harm the friction areas and use a new snap ring so the bevel edge is facing outside on the A/C compressor. If you use the old clutch plate and pulley and bearing assembly, replace the shim; if it's new equipment, install a stack of shims that are 2.54 mm thick. Put on the clutch plate on front of the A/C compressor and secure it by tightening the compressor shaft bolt until you reach 19 Nm. After you have tightened, test the air gap in various places to confirm it falls between 0.35 and 0.60 millimeters; do not hesitate to use shims if it isn't. Connect the lead from the compressor clutch field coil wire behind the bracket, attach the removable bracket and join the engine wire harness. After that, put in the accessory drive belt, secure the radiator fan, shroud assembly, air cleaner housing and air intake hose and connect the negative battery cable.