Installation · 1. Lightlygreasethe newsealingring and lay it

911 Carrera (996) Engine -Cylinder head, valve drive Installation 1. Lightlygreasethe newsealingring and lay it in the oil extractionpump. 2. Align oil extraction pump driver and fit oil extraction pump in the correct position. The arrow for the direction of rotation or the marking "I -3" must face the crankcase. Insert new micro-encapsulatedhexagon-head bolts loosely in the oil extraction pump. 430_1_96 3.1 Carefullyplace the cylinder head cover in the correct position so that the sealing bead is not damaged. Screw two studs or centring pins into the corners of the cylinder head as centring aids. Tighteningtorque for hexagon-headbolts 13 Nm (10 ftlb.). Observetightening sequence. Immediately remove silicone material emerging in the area of the camshaft closurecap. 667_97 Engine removed in drawing for clearer illustration 4. Tighten micro-encapsulated hexagon socket head bolts of oil extraction pump. Tightening 3. Prepare cylinder head cover for installation: torque: 10 Nm (7.5 ftlb.) Clean sealing surface of the cylinder head and cylinder head cover very carefully. Apply a 5. Fit camshaft closure cap dry. silicone bead to the cylinder head cover. Refer to: Sealing cover for camshaft housing 6. Fit closure cap on tensioning element (cylinder head cover), ServoNo. 1591 51. (VarioCam). Tightening torque: 10 Nm (7.5ftlb.) 7. Fit oil protection tubes, spark plugs, ignition coils, holder for rear muffler and rear muffler. 171919 Removing and installing oil extraction pumps -Engine installed 17 -15