Boxster S (987) F6-3.4L (2008)
13. Screw the housing screws of the inlet and exhaust camshafts and the auxiliary screw of the adjustment gauge alternately by approximately another
90° until the specified tightening torque is reached. Tightening torque: 7.5 ft lb.; Tightening torque: 17 ft lb.
14. Insert guide rail screw with a new O-ring and tighten (hexagon socket M6, a/f 5) Grease O-ring with Optimol MP3. Tightening torque: 7.5 ft lb.
15. Fit the chain tensioner, side 4-6 (hexagon socket a/f 14). Fit chain tensioner with new aluminum sealing ring and tighten. Tightening torque: 59 ft
lb.
Note:
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Position crankshaft above the pulley or vibration balancer before final adjustment of the timing to the TDC marking.
16. Turn the crankshaft by means of the pulley or vibration balancer clockwise (running direction of engine to TDC mark : TDC marking on pulley or
vibration balancer coincides with fixing bore in crankcase. Fix with locating pin 9595/1.
17. Insert four Torx screws M6 to sprocket of exhaust camshaft and tighten evenly in diagonally opposite sequence. Tightening torque: 10.5 ft lb.
18. Tighten the central screw of the camshaft adjusting device. Fit special tool retaining tool 9685 on hexagon of intermediate piece of the central
screw. Screw in the central screw gently by hand so that the loose contact block just touches the fitting bore of the oil suction pump. Fix the
hexagon-head bolt to the contact block.