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Home >> Porsche >> 2023 >> Cayenne Base, 4D Utility Coupe >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 26 (13 Engine - Crank Drive, Pistons 2.9L -- 9YA - Cayenne (9YA)) >> WM, 131004 Measuring Pistons (Includes Measuring Cylinder Bore) (V6 Turbo) >> Measuring Pistons

Measuring Pistons

WARNING: This page is about a different variant/trim than selected.
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
  1. 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-  .
G15210598Courtesy of PORSCHE CARS NORTH AMERICA, INC.

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.