Engine, cylinder head, valve drive 911 Carrera (996) · Installing camshaft housing -GT3

Engine, cylinder head, valve drive 911 Carrera (996) Installing camshaft housing -GT3 4. Tightenguiderails Equip the three fastening screws of the guide rails with a new sealing ring and screw in place. The two lighter anodised screws must go into the crankcase. Ensure that the guide rails engage in the central position in the chain box. Tighteningtorque of the three screws:31 Nm (17 ftlb.) 5. Placethe camshafthousingin position. 364_99 Place the camshaft housing carefullyin 7. Insertflat-basetappets. position. Make sure that the flat-based tappet guides are not damaged. Before inserting the flat-based tappets, smear them with a thin coat of clean engine oil. Make 6. Mountthe 18 hexagon-headbolts. sure without fail that the flat-based tappets are not confused with each other. Prepare and position the 18 hexagon-head bolts. Tighten the bolts from the inside outwards in the shown sequence. Note: The fastening screws on the camshaft housing must be of 10.9 quality. If the quality is 8.8, the screws must be replaced. Initial tightening: 23 Nm (17 ftlb.) Tightening torque: 28 Nm (21 ftlb.) 293_99 15 -154 15 03 23 Installing camshaft housing -GT3 99615149 Printed in Germany -39, 2000