Table of Contents 2007 NG6 Engines Workbook Subject Page New NG6 Engines for 2007 . .5 New Engine Designations . .6 Crankcase Identification . .7 New NG6 Versions . .8 New Vehicles for 2007 . .8 Engine Mechanical Overview . .9 Crankcase . .9 Bolts . .10 Cylinder Head Cover . .10 Cylinder Head . .11 Valvetrain . .11 Camshafts . .11 VANOS . .12 Valvetronic . .12 Gaskets and Seals . .13 Head Gasket . .13 Oil Pan Gasket . .13 Bedplate Sealing . .13 Crankshaft Drive Components . .13 Crankshaft . .13 Piston and Connecting Rods . .13 Torsional Vibration Damper . .13 Initial Print Date: 10/06 Revision Date: 12/06 Table of Contents Subject Page Intake Manifold . .14 Crankcase Ventilation . .20 Crankcase Ventilation (N51 and N52KP) . .20 Crankcase Ventilation (N54) . .21 Crankcase Ventilation System Overview (N54) . .22 Crankcase Ventilation System Overview (N54) . .23 Summary of Mechanical Changes . .26 MSD80 Engine Management Overview (E9X) . .28 MSV80 Engine Management Overview (E70) . .30 Air Management . .32 Air Management N52KP and N51 . .32 Throttle Valve . .32 Air Intake Ducting . .33 Air Intake Ducting Function . .34 Exhaust Gas Turbocharging . .36 Bi-turbocharging . .37 Boost-pressure Control . .38 Blow-off Control . .39 Charge-air Cooling . .40 Load Control . ..