Porsche 996 TT Repair Manual page 543

11. Remove camshaft sprockets. The timing chain must not be loaded when the screw connection of the
camshaft sprockets is loosened. To remove the sprocket wheels, the actuating element of the inlet
camshaft must be countered using special tool holding wrench 9653 , and the sprocket wheel of the
exhaust camshaft must be countered using speical tool holding wrench 9653/1 .
Note
• Only remove oil guide housing from the camshaft if the camshaft has to be replaced!
• The pan−head screws of the oil guide housing can fall into the crankcase when unscewing, the use of
a solenoid socket wrench insert is therefore recommended.
• The oil guide housing of cylinder 1 − 3 and 4 − 6 differ in height.
12. Remove oil guide housing. Heat the three hexagon socket head bolts using a hot−air gun,
unscrew and remove the housing. The fastening screws are microencapsulated and therefore
must be replaced.
13. Remove camshaft bearing cap. To do so, uniformly unscrew the hexagon−head bolts of the relevant
bearing covers from the inside. Remove the bearing covers in the specified order.
Removing camshafts
einordnung
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