Dimension & Clearance Specifications - Piston

Piston Pin Clearance Standard 0.003-0.016 mm (0.0001-0.0006 inches)
Piston Pin Clearance Maximum 0.05 mm (0.002 inches)
Piston Pin Diameter 18.995-19.00 mm (0.7479-0.7480 inches)
Piston Pin Offset 0.5 mm (0.002 inches)
Piston-to-Cylinder Bore Clearance 0.02-0.04 mm (0.0008-0.0015 inches)
Piston Diameter Standard 74.97-74.480 mm (2.9516-2.9523 inches)
0.25 mm (0.0098 inches) Oversize Piston 75.220-75.230 mm (2.9514-2.9518 inches)
0.50 mm (0.0197 inches) Oversize Piston 75.470-75.480 mm (2.9712-2.9716 inches)
Piston Ring End Gap Top Ring (Standard) 0.20-0.35 mm (0.0079-0.0137 inches)
Top Ring (Maximum Limit) 0.7 mm (0.0275 inches)
Lower Ring (Standard) 0.20-0.35 mm (0.0070-0.0137 inches)
Lower Ring (Maximum Limit) 0.7 mm (0.0275 inches)
Oil Ring (Standard) 0.2-0.7 mm (0.0079-0.0275 inches)
Oil Ring (Maximum Limit) 1.7 mm (0.0669 inches)
Piston Ring Groove Clearance Upper Compression Ring 0.03-0.07 mm (0.0012-0.0027 inches)
Lower Compression Ring 0.02-0.06 mm (0.0008-0.0023 inches)