Assembly Overview - Pistons And Connecting Rods
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2018 Porsche Cayenne, 2017 Porsche Cayenne, 2016 Porsche Cayenne, 2015 Porsche Cayenne, and 2014 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.
- Screws/replace → Initial tightening: 50 Nm (37 ftlb.) → Final tightening: +90°
- Oil thread and contactsurface
- Use old screw to measure radial clearance, tighten to 50 Nm (37 ftlb.) but do not tighten further.
- Connecting-rod bearing cap
- Mark forre-installation
- Mark cylinder allocation with paint/colored marker
- Bearing shells
- Check that retaining lugs are seated securely
- Mark used bearing shells for re-installation, but not on the running surface.
- Oversize bearing shells are available for re-machined crankshaftcon-rod journals
- Connecting-rod bearing lugs are aligned
- Circlip/replace
- Piston pin
- Heat stiff pistons to approx.60°C
- Pistons
- Mark installation position and allocation to cylinder
- Piston rings
- Offset gap by 120°
- Installation position: "TOP" marking or side with lettering towardspiston crown