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

Engine, cylinder head, valve drive 911 Carrera (996) Installing camshaft housing -GT3 11. Make sure that the timing chain lies above 12. Mountthe oil guide housing. the camshafts. Place the camshaft bearing saddles in their original installationposition. The oil guide housings of the individual Pay attention to the matching number to the cylinder banks are of different lengths {right camshaft bearing housing. The installation (cylinders4-6) 27 mm, left (cylinders 1-3) numbers on the bearing saddle and on the 31 mm). Replacethe three hexagon socket camshaft bearing housing must point head bolts, bond them in with Loctite 270 towards each other. Place the thrust bearing and tighten them to 9.7 Nm (7.0 ftlb.). cover on top. It must be ensured that the camshafts are properly positioned in the bearing surfaces. Screw in fastening screws (M6x30) by hand. Tighten the thrust bearing cover and the camshaft bearing saddles in the sequence shown. Push both camshafts towards the engine support. Use a plastic hammer for this purpose. Grease the bearing surfaces of the double bearing saddle and fit. Fasten the bearing saddles only when the double bearing saddle lies absolutelyflat on the camshaft housing. Tightening must be carried out evenly. Tighteningtorques: Thrust bearing cover: 13 Nm (9.5 ftlb.) 263_99 Bearing saddles: 13 Nm (9.5 ftlb.) " '..eJ~ .: :::::z. .r~ 263_99 262_99 15 -156 1503 23 Installing camshaft housing -GT3 99615149 Printed in Germany -39, 2000