Measuring Pistons
WARNING: This page is about a different car, the 2021 Porsche Macan, 2020 Porsche Macan, and 2019 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.