engineValve Spring - Single Torque Specsfor 2007 Volvo S80 2.9L I6 · AWDUnitslb-ftNm8 fastenersSeqComponentTorqueAngle—Cover Bolts12 lb-ft · 16 Nm——Gasket BoltsCritical15 lb-ft · 20 Nm——Mounting Bolts20 lb-ft · 27 Nm——Mounting BoltsCritical35 lb-ft · 47 Nm——Rocker Arm BoltsCriticalTighten with cam lobe pointing away22 lb-ft · 30 Nm——Sensor Bolts8 lb-ft · 11 Nm——Spark Plugs - Aluminum HeadCriticalApply anti-seize to threads15 lb-ft · 20 Nm——Valve Cover BoltsTighten in sequence7 lb-ft · 10 Nm—📝 Suggest a correction to this torque spec