911 Targa 4S (997) F6-3.8L (2007)
-> Pay close attention to the oil scraper rings when tightening the restraining strap.
2. Coat pistons generously with new engine oil. Fit commercially available restraining strap. Restraining strap 9659 must be fitted at the piston
(piston junk).
Piston restraining strap with assembly aid 9659/9
3. Align restraining strap. The restraining strap lock should be aligned between the inlet valve recesses.
Aligning restraining strap for piston rings
Information
The assembly sleeve is used to position the restraining strap.
Work quickly when positioning the strap so that the piston rings are not damaged.
4. Insert the piston inverted into the assembly aid 9657. Quickly press the piston downwards and press the restraining strap downwards at the same
time with your other hand.
Piston in assembly sleeve
5. Slide hose pieces or aluminium sleeves over the threaded bolts to protect the pistons and piston rings.
6. Turn crankshaft pulley clockwise until the connecting rods of cylinders 2 and 5 are positioned at top dead center.