engineTiming Chain Torque Specsfor 1997 BMW 525iT E39 2.5L I6 M54 Touring · RWDUnitslb-ftNm5 fastenersSeqComponentTorqueAngle—Camshaft sprocket bolts (M7)Critical15 lb-ft · 20 Nm——Crankshaft pulley/vibration damper bolt (central bolt)Critical74 lb-ft · 100 Nm——Timing chain guide rail bolts7 lb-ft · 10 Nm——Timing chain tensioner (oil-fed plug)Critical30 lb-ft · 40 Nm——VANOS unit to cylinder head bolts7 lb-ft · 10 Nm—📝 Suggest a correction to this torque spec