Measuring Pistons
WARNING: This page is about a different car, the 2024 Porsche Macan, 2023 Porsche Macan, 2022 Porsche Macan, 2021 Porsche Macan, and 2020 Porsche Macan. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Pointed or sharp objects
- Risk of cracks, pricks or cuts
- → Wear personal protective gear.
CAUTION:
Damage to sensitive engine components!
- → Conscientious and precise work
- Using a 75-100 mm outside micrometer,
take a measurement approx. 10 mm from the lower edge of the piston, at a 90° angle to the piston pin axis.
Measuring pistons
Piston diameter New in mm Wear limit in mm Nominal measurement 84.45 84.433 Information
Nominal measurement without coating (thickness = 0.02 mm). The coating wears off.