Measuring Pistons
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2023 Porsche Panamera, 2022 Porsche Panamera, 2021 Porsche Panamera, 2020 Porsche Panamera, and 2019 Porsche Panamera. 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
→ 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 -1- .
Measuring pistons
Piston skirt wear
| Piston diameter | New in mm | Wear limit |
|---|---|---|
| Nominal measurement | ||
| Information Nominal measurement without coating (thickness = 0.02 mm). The coating wears off. |
85.98 | Large areas of the stem coating worn and palpable scoring caused by foreign particles |