Removing The Camshaft Housing - Porsche 996 TT Repair Manual

24 Flat−base tappets of
exhaust camshaft
25 Operating plunger of inlet
camshaft
26 Camshaft housing with 18
hexagon−head bolts M8 x
50 (10.9)
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Removing the camshaft housing

The following prelimiminary work must be carried out:
Remove engine ' 100119 Removing and installing engine .
•
• Remove rear muffler.
• Remove the oil container ' 175219 Removing and installing oil container .
• Remove generator ' 272219 Removing and installing three−phase generator .
• Remove coolant guide housing.
1. Cylinder bank 1 − 3: Undo fuel collection pipe with injection valves and remove holder for
turbochargers.
2. Cylinder bank 4 − 6: Undo holder for turbochargers and remove bypass flap control box on turbocharger.
3. Remove ignition coil. Remove electrical plug of the ignition coils, unscrew 2 cylinder screws (hexagon
socket) M6 x 25 of each and pull ignition coils out of spark−plug recess.
4. Remove 2 closure caps (green, plastic) between camshaft housing cover and cylinder head (clutch side).
To do so, puncture the closure cap in the middle and lever out using a small slotted screwdriver.
5. Remove oil extraction pump and closure cap. The oil extraction pump flange must be held with a
wrench when the oil line on the pump is loosened. Subsequently unscrew the three fastening
screws of the oil extraction pump and the three fastening screws of the closure cap, then lever off
the two components.
6. Remove solenoid hydraulic valve for valve lift adjustment. To do so, remove plug, unscrew both
hexagon−head bolts M6 x 25 and remove with the holder. Subsequently remove the valve.
Removing the camshaft housing
einordnung
6 Do not exchange
6 Do not exchange
1 If hexagon−head bolts of
strength class 8.8 were
installed, exchange these for
bolts of strength class 10.9.
Observe identification on the
rotor! (cylinder bank allocation)
Oil lightly, pay attention to
cleanliness!
Oil lightly, pay attention to
cleanliness!
Tightening torques: Initial
tightening 23 Nm (17 ftlb.); final
tightening 28 Nm (21 ftlb.)
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