engineTiming Chain Torque Specsfor 2013 BMW M3 E90 4.0L V8 S65 · RWDUnitslb-ftNm5 fastenersSeqComponentTorqueAngle—Camshaft sprocket bolt (cam hub)Critical59 lb-ft · 80 Nm——Chain guide bolts7 lb-ft · 10 Nm——Crankshaft hub center boltCritical221 lb-ft · 300 Nm——Timing chain tensioner (primary)Critical37 lb-ft · 50 Nm——Valve cover bolts7 lb-ft · 10 Nm—📝 Suggest a correction to this torque spec