engineTiming Chain Kit Torque Specsfor 1990 Mercedes-Benz 300D 3.0L I6 Diesel OM603 · RWDUnitslb-ftNm5 fastenersSeqComponentTorqueAngle—Camshaft sprocket boltCritical59 lb-ft · 80 Nm——Chain guide rail bolts18 lb-ft · 25 Nm——Chain tensioner bodyCritical59 lb-ft · 80 Nm——Crankshaft hub central boltCritical243 lb-ft · 330 Nm——Valve cover bolts7 lb-ft · 10 Nm—📝 Suggest a correction to this torque spec