911 Carrera Targa F6-3600cc 3.6L SOHC (1996)
Timing Chain Housing, Four Hole Camshaft Sprocket Type (Cylinders 4 Through 6 Side Shown) Part 4 Of 4
Before dismantling, set engine cylinder 1 to firing TDC (overlap TDC of cylinder 4). Punch marks of both camshafts now point up.