Porsche 996 TT Repair Manual page 548

• Left wheel with coating and part number (identification "left" on rear side)
• Right wheel with part number and identification "right" (coating on rear side)
Note
The contact surfaces of the sprocket wheels and camshaft flange (exhaust side) must be completely
•
free of oil and grease!
• The coated surface points towards the camshaft flange!
The drive plates for the oil extraction pumps differ in height. The drive plate on cylinder bank 1 − 3 is
•
higher!
• The internal serration screw M12 must be replaced!
11. Fit exhaust camshaft wheel. Clean mounting surface of the sprocket and of the exhaust camshaft and
remove all oil and grease. The inscription left must be visible for cylinder bank 1−3, and right must be
visible for cylinder bank 4−6. Push on the sprocket. Push on the drive plate for the oil extraction pump
and tighten the new internal−serration screw by hand. Observe height of drive plates of cylinder banks 1
− 3 and 4 − 6!
12. Mount the guide rail between the sprocket wheels. Tighten the three M6 x 25 hexagon−head bolts with
the correct tightening torque.
Tightening torque of the hexagon−head bolts M6 (10.9) 13 Nm (10 ftlb.)
13. Set the timing. => Setting camshafts (timing) – engine removed .
Note
• The following work can be carried out only after the timing has been adjusted!
14. Reinstall chain tensioner. Insert the chain tensioner into the chain housing in accordance with its
identification, then fit the chain tensioner cover with a new seal. Tighten the hexagon−head bolts M6 to
Installing camshafts
einordnung
485