911 Turbo Cabriolet (996) F6-3.6L Turbo (2004)
11. Check the connecting rods. Determine the length of the connecting-rod bolts.
Note:
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In the case of the connecting-rod version with a 3-ring knurled screw, no replacement is possible. In this case, the entire connecting rod must
be replaced. The 4-ring knurled screw is available as a spare part.
Identifying the ring knurled screw
Note:
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The visual difference between the 3-ring knurled screw and the 4-ring knurled screw can only be detected when the screw is pressed out.
1. Identify the ring knurled screw. With the screw pressed in, measure the groove diameter.
Object Measured value Screw type
Diameter groove 1 > 7.9 mm 3-ring knurled screw
Diameter groove 1 < 7.9 mm 4-ring knurled screw
Pressing ring knurled screw in and out
Pressing ring knurled screw out
Caution: In order to protect the con-rod cover, always insert aluminum sheet strips at the sides into the vice.