Piston, Engine

Piston diameter - coded red 1 90.177-90.197 mm (3.550-3.551 inch)
Piston diameter - coded blue 2 90.190-90.210 mm (3.5507-3.5515 inch)
Piston diameter - coded yellow 3 90.203-90.223 mm (3.513-3.5521 inch)
Piston-to-cylinder bore clearance 0.012-0.0026 mm (0.0005-0.0001 inch)