Porsche 996 TT Repair Manual page 539

hexagon−head bolts M6 x 35
and O−ring
4 Hexagon−head bolt M 6 x 25 2
5 Holder for hydraulic valve
6 Hydraulic valve for valve lift
adjustment
6a O−ring for hydraulic valve
7 Hexagon−head bolt M6 x 70
8 Hexagon−head bolt M 6 x 35 14
− Hexagon−head bolt M 6 x 40
(only pages 4 − 6)
9 Camshaft housing lid
10 Chain tensioner
11 Guide rail with 3
hexagon−head bolts M6 x 25
12 Pan−head screw, drive plate
and plate for sprocket wheel
of exhaust camshaft
13 Hexagon−head bolt M12 x 1.5
x 120 with washer for
actuating element of inlet
camshaft
14 Chain sprocket of exhaust
camshaft
15 Actuating element for inlet
camshaft
16 Screw M5 x 10
microencapsulated (hexagon
socket)
17 Oil guide housing
Component overview and tightening torques
einordnung
1
1 Pull out carefully, use special tool
relay puller 9235 if necessary
1
1
(Pages 4 − 6 only 12 M6 x 35)
2 Fastening holder for oil container
onto camshaft housing cover
1
1 2 hexagon−head bolts M6
1
1 Internal serration screw M12 x
1.5, counter with special tool
holding wrench 9653/1 ; do not
interchange drive plate: Height,
left/right is different
1 Counter with special tool holding
wrench 9653
1 Observe left and right side
(coating)
1
3 Screws can fall into the
crankcase! Use magnetic socket
wrench insert if necessary
1 Do not confuse left and right part Observe height!
tightening torque 10
Nm (7.5 ftlb.)
10 Nm (7.5 ftlb.)
Special tool Gr.
2.2.2; Workshop
Equipment Manual
Replace O−ring, oil
lightly if necessary
(engine oil)
10 Nm (7.5 ftlb.)
10 Nm (7.5 ftlb.)
10 Nm (7.5 ftlb.)
Clean sealing surface
; sealant : Drei Bond
or Loctite 5900
Observe
identification! 10
Nm (7.5 ftlb.)
10 Nm (7.5 ftlb.)
Replace screw;
contact surfaces
must be completely
free of grease and
oil. Counter with
special tool 9653/1;
tightening torque 30
Nm (22 ftlb.) and 1 x
90° torque angle
Replace screw;
counter with special
tool 9653; tightening
torque 30 Nm (22
ftlb.) and 170°
torque angle
Contact surfaces
must be completely
free of grease and
oil.
Left stop for setting
timing
Replace screws,
tightening torque 7
Nm (5.0 ftlb.)
476