911 Carrera 4S Coupe AWD F6-3600cc 3.6L SOHC (1997)
5. Turn both camshafts until punch mark faces up.
NOTE: If the mark is missing, rotate camshafts until woodruff key groove points up.
Part 1 Of 2
Rotating Camshafts Using Camshaft Locking Tools (Part 2 Of 2)
6. The camshafts may be aligned and rotated from the front (flywheel end) using Special Tools (locking devices) 9551 or 9552, respectively.
7. When the Z1 mark on the pulley has been aligned with the seam and when the punch marks or woodruff key groove, respectively, point up, the
engine is in the basic firing TDC for cylinder No. 1 and the overlap TDC for cylinder No. 4.