Operation CHARM: Car repair manuals for everyone.

Piston Ring, Engine



Piston and Cylinder Dimensions

Note: Cylinder bore must not be measured if cylinder block is secured to engine stand with Engine Lateral Bracket T03001, or else results may be incorrect.

Piston and cylinder dimensions:





* Measurement does not include graphite coating (thickness = 0.02 mm). The graphite coating wears off.

Piston Ring Gaps





Ring to Groove Clearance





Piston Inspection





Take measurement approx. 10 mm from lower edge of piston skirt and offset 90° to piston axis.

Deviations from nominal dimension max. 0.04 mm

Cylinder Bores





Deviation from nominal size max. 0.08 mm