engineTiming Chain Torque Specsfor 1997 BMW M3 3.0L I6 S50 · RWDUnitslb-ftNm5 fastenersSeqComponentTorqueAngle—Camshaft sprocket to hub bolts (M7)Critical15 lb-ft · 20 Nm——Chain tensioner plug (top of head)Critical30 lb-ft · 40 Nm——Crankshaft pulley/hub bolt (vibration damper)Critical59 lb-ft · 80 Nm——Upper timing chain guide bolts7 lb-ft · 10 Nm——VANOS unit to cylinder head nutsCritical16 lb-ft · 22 Nm—📝 Suggest a correction to this torque spec