Except PZEV Models
Torque the bolt to 49 Nm (5.0 kg-m, 36 lb-ft) with a torque wrench and the heavy duty socket, 19 mm (C). Do not use an impact wrench. If the pulley bolt or crankshaft are new, torque the bolt to 177 Nm (18.0 kg-m, 130 lb-ft), then remove the bolt and torque it to 49 Nm (5.0 kg-m, 36 lb-ft).
Tighten the pulley bolt an additional 90 °.