Engine, cylinder head, valve drive 911 Carrera (996) · 6. Removethe guide rail.

Engine, cylinder head, valve drive 911 Carrera (996) 6. Removethe guide rail. Removethe three hexagon-headbolts on the upper guide rail betweenthe camshaft sprockets and remove the guide rail. 233_99 8. Removeoil guide housing. To do so, unscrewthe three hexagon socket head bolts and remove the oil guide housing forwards. The left and right oil guide housings 111_99 are of different lengths. If the oil guide hous- ing is stuck, loosen the thrust bearing cover. 7. Removethe chain sprockets of the camshafts, Whenremoving the chain sprocket of the inlet camshaft,the former must be held with spe- cial tool No. 9653 as shown in the diagram, in order to preventthe timing chain from being burdened. Stop the chain sprocket of the exhaustcamshaft with special tool No. 9653/1. First remove the chain sprocket of the exhaust camshaft,then the adjuster of the inlet camshaft. 264_99 15 -146 150321 Removing camshaft housing -GT3 99615141 Printed in Germany -32, 1999