Piston, Engine

Piston diameter-coded red (before coating) 96.795-96.782 mm (3.81082-3.81031 inch)
Piston diameter-coded blue (before coating) 96.808-96.795 mm (3.81133-3.81082 inch)
Piston diameter-coded yellow (before coating) 96.821-96.808 mm (3.81184-3.81133 inch)
Piston-to-cylinder bore clearance (uncoated clearance) 0.018-0.044 mm (0.0007-0.0017 inch)